Q682 - General Subjects, USCG prep certification 2026

Progress: 24% (23/94)

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1. If item "1" in the illustrated oily-water separator indicates an abnormally deep vacuum, which of the following conditions is the most probable causeNot learned 2. A pneumatic pressure tank is installed in a sanitary system to __________.Not learned 3. Coast Guard regulations concerning marine sanitation devices may be found in __________.Not learned 4. Marine sanitation devices installed on vessels must be certified by the __________.Not learned 5. In accordance with 33 CFR Subchapter O (Pollution), what is the definition of a "Type I Marine Sanitation Device"?Not learned 6. When preparing/writing shipyard items for your vessel's upcoming dry-docking period, what would you consider as an item regarding CuNi saltwater cooling systems/piping?Not learned 7. A hydraulic fluid flow control circuit, controlling linear actuator speed during extension, with the pump operating at system pressure, is known as a __________.Not learned 8. A hydraulic fluid flow control circuit, controlling linear actuator speed, with the pump operating below maximum operating pressure is known as the __________.Not learned 9. Hydraulic system reservoirs are often fitted with a combined filler/breather cap. If the breather element becomes fouled, the __________.Not learned 10. When new piping sections have been fabricated for installation in a hydraulic system, prior to installation the piping should be __________.Not learned 11. New piping and tubing to be installed in a hydraulic system can be safely degreased by using __________.Not learned 12. Before doing any work on a hydraulic system equipped with accumulators, you should __________.Not learned 13. To charge a bladder type hydraulic accumulator __________.Not learned 14. In order for the hydraulic pump installed in a constant flow system to maintain adequate flow, the pump suction should _________.Not learned 15. When changing to a fire-resistant hydraulic fluid in a system, it is important to check the compatibility of the new fluid with the system's __________.Not learned 16. How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic systems?Not learned 17. When normal operating pressure is applied to the hydraulic oil in a high-pressure system, the oil __________.Not learned 18. If you attempt to tighten a leaking hydraulic fitting with pressure on the system, you will __________.Not learned 19. Lint from cleaning rags can be harmful to hydraulic systems because the lint __________.Not learned 20. After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?Not learned 21. Which of the following problems may be encountered by using an oil having a viscosity higher than that specified for an operating hydraulic system?Not learned 22. Cavitation in a hydraulic pump is indicated by noisy pump operation and can be caused by a/an __________.Not learned 23. If a hydraulic pump sounds like it is pumping rocks when in operation, the problem is most likely ________.Not learned 24. Overheating of the oil in a hydraulic system can be caused by __________.Not learned 25. If the pump in a hydraulic system produces a low rumbling noise while in operation, this is a probable indication of __________.Not learned 26. A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by __________.Not learned 27. If a hydraulic pump is producing a noisy whine when in operation, the cause may be __________.Not learned 28. If dirt is allowed to contaminate the sump of a hydraulic deck crane, which of the following problems will occur?Not learned 29. A hydraulic system gear pump being fed from a reservoir frequently indicates signs of excessive pitting after two months of service. Which of the following would most likely contribute to this condition?Not learned 30. While starting a hydraulic anchor windlass, you observe that hydraulic pressure does not develop in spite of the proper operation of the electric drive motor. Which of the following actions should you take FIRST to restore pressure?Not learned 31. A command signal input to the steering gear has initiated rudder movement for 20° right rudder. The follow-up mechanism at the beginning of the rudder movement will __________Not learned 32. When the helm angle position is changed, the series of corresponding events of the steering gear will include __________. I. rate of steering gear ram movement will be proportional to amount of helm angle input II. degree of tilting plate (box) angle will be proportional to the amount of helm angle inputNot learned 33. You are conducting an operational test of your main steering gear system. The main steering gear must be capable of moving the rudder from 35 degrees on either side to 35 degrees on the other with the vessel at its deepest load line draft and running at maximum ahead service speed, and from 35 degrees on either side to 30 degrees on the other in what minimum time frame?Not learned 34. Prior to entering the navigable waters of the United States after an international voyage, your vessel must conduct drills according to 33 CFR regulations for ports and waterways safety that test steering system functionality and log that in the vessel logbook, unless the drill is conducted and logged on a regular basis at least once every three months. Within how many hours of arrival must these drills be performed?Not learned 35. During the Special Survey the propeller is removed and shaft pulled into the vessel. Which of the following tests must be performed on the propeller shaft prior to refitting?Not learned 36. A horizontal electro-mechanical anchor windlass is equipped with two warping heads, two wildcats, two manual brake handwheels, two clutch control levers, and a multipoint lever-operated pedestal-mounted controller. What statement is true as it pertains to the operation of the pedestal-mounted controller?Not learned 37. A horizontal electro-mechanical anchor windlass is equipped with two warping heads, two wildcats, two manual brake handwheels, two clutch control levers, and a multipoint lever-operated, pedestal-mounted controller. What statement is true as it pertains to the operation of the warping heads and wildcats?Not learned 38. In attempting to start the hydraulic pump drive motor of a horizontal electro-hydraulic anchor windlass, what condition would prevent the electric motor from starting?Not learned 39. As it pertains to a "constant-tension" mooring winch, what statement is true?Not learned 40. As it pertains to the automatic hoist winch brake of an electro-hydraulic cargo-handling pedestal-type deck crane, what statement is true?Not learned 41. As it pertains to the luffing motion limits associated with an electro-hydraulic cargo-handling pedestal-type deck crane, what statement is true?Not learned 42. As it pertains to the hoist motion limits associated with an electro-hydraulic cargo-handling pedestal- type deck crane, which statement is true?Not learned 43. What statement is true concerning the door interlock devices associated with a winding drum or traction drive passenger elevator onboard ship?Not learned 44. When removing roller bearings from a shaft, the force of the puller should be applied to the bearing __________.Not learned 45. Antifriction bearings can be removed undamaged from a shaft by using an arbor press, or wheel puller with a ________.Not learned 46. As the speed of an oil lubricated ball bearing increases, fluid friction, due to churning, generates heat. This condition may be avoided by __________.Not learned 47. A dented race in an antifriction bearing could be caused by __________.Not learned 48. In accordance with 46 CFR Subchapter I (Cargo and Miscellaneous Vessels), it is the duty of the chief engineer to acquire and seal a sample of fuel oil received whenever fuel oil bunkers are taken. This sample must be preserved until __________.Not learned 49. What type of maintenance system would be associated with a vibration monitoring analysis system?Not learned 50. What type of maintenance system would be associated with a comprehensive lubricating oil analysis program?Not learned 51. What type of maintenance system would be associated with manufacturer recommendations as a function of machinery running hours?Not learned 52. What type of maintenance system would be associated with accomplishing maintenance after a machinery breakdown?Not learned 53. What statement is true concerning a well-planned turnover procedure from one crew to another?Not learned 54. As you manage the engine room familiarization training program for new engine department employees, what should you explain to these new employees?Not learned 55. What form of communication provides the greatest information richness, which is the amount of verbal and non-verbal information that a communication channel carries?Not learned 56. What leadership style tends to extrinsically motivate employees on a contingent reward system where the focus is on outcomes?Not learned 57. Some managers think that the average person has a dislike for work, avoids responsibility, and cannot be trusted. What type of leadership style is such a manager likely to adopt?Not learned 58. Leadership style sometimes must change with the situation faced by the manager. Which of the following situations would be best suited for adopting a structured, autocratic leadership style?Not learned 59. Leadership style sometimes must change with the readiness level of the employees. Which of the following employee readiness level scenarios would be best suited for adopting a structuring and telling leadership style?Not learned 60. Which of the following shipboard groups would be an example of an informal group?Not learned 61. During the "storming" phase of group development, conflicts generally arise over goals, task behaviors, and leadership roles. If these conflicts are not successfully resolved, what may result?Not learned 62. During the "forming" stage of group development, members are trying to determine the task of the group and their role expectations of one another. As a manager, what should be done to help facilitate the "forming" process?Not learned 63. If there is any doubt that a newly employed engine department crew member is sufficiently familiar with the engine room equipment, operating and maintenance procedures needed for the proper performance of his or her duties, what should be done?Not learned 64. What is the critical first step that must be carried out before executing a plan?Not learned 65. Which of the following document types would offer the greatest flexibility in carrying out its intent?Not learned 66. For planning purposes graphical charts can be a useful tool. What type of chart is good for a visual progress report and identifies work stages or activities on the vertical axis and the scheduled completion dates on the horizontal axis?Not learned 67. As a first assistant or chief engineer, what is the source of your authority?Not learned 68. What is meant by the term empowering employees?Not learned 69. It has been demonstrated that delegation can enhance employee development. To avoid a fear of failure, what must a manager avoid when delegating decision-making power to an employee?Not learned 70. As an engineering department manager in dealing with a grievance presented by an unlicensed engine department crew and union member, what documentation spells out the grievance procedure?Not learned 71. What federal agency enforces the prohibition of employment discrimination based on race, color, religion, sex, or national origin as it applies to shipboard employment onboard US flag vessels?Not learned 72. One of the means of alternative dispute resolution regarding a collective bargaining agreement dispute is mediation. What is meant by mediation?Not learned 73. One of the means of alternative dispute resolution regarding a collective bargaining agreement is arbitration. What is the role of the arbitrator?Not learned 74. Suppose as an engineering department manager a grievance concerning the interpretation of the collective bargaining agreement (the contract) is resolved by the arbitration process. If you disagree with the decision rendered by the arbitrator, what should be your response?Not learned 75. Which of the following third parties utilized in alternative dispute resolution proceedings has the authority to make a binding decision?Not learned 76. A room humidistat initiates the lowering of the humidity of the conditioned supply air to a space, while the actual process is accomplished by what means?Not learned 77. The introduction of outside air to the air conditioning system is 95°F with a relative humidity of 70%. The air has been conditioned to 70°F with a relative humidity of 80%. Using the psychrometric chart, shown in the illustration, determine the quantity of moisture removed from one pound of the conditioned airNot learned 78. What is the wet bulb temperature of air if the dry bulb temperature of the air is 90 degrees and the relative humidity is 65%Not learned 79. In an air conditioning system, what is the name of the chamber where the duct-work originates?Not learned 80. In a two-stage centrifugal air conditioning system such as the one illustrated, the liquid refrigerant passes from the condenser directly to what componentNot learned 81. For the proper control of the air temperature in an air conditioning system using chilled water circulation, which of the listed conditions should remain constant regardless of load changes?Not learned 82. Traditionally, which of the listed refrigerants has been more suitable than the others for use in a centrifugal refrigeration compressor?Not learned 83. For safe storage, the maximum allowable temperature to which refrigerant bottles should be exposed is what temperature?Not learned 84. Which of the fluids listed is suitable and commonly used as a secondary refrigerant?Not learned 85. The amount of HCFC-123 in a storage cylinder is measured by what means?Not learned 86. The gas that exists in the stratosphere forming a protective shield that helps to protect the environment from the harmful effects of ultraviolet radiation is called what?Not learned 87. If the discharge reed valves used in a refrigeration compressor are leaking badly, what statement is true?Not learned 88. In general, the thermal bulb for a thermal expansion valve used in a reciprocating air conditioning system is usually charged with what substance?Not learned 89. A thermostatic expansion valve is properly controlling evaporator superheat. Adjusting this valve to lower the evaporator superheat setting will result in which of the following?Not learned 90. Which of the installation steps listed is necessary for the proper operation of the thermostatic expansion valve?Not learned 91. Which of the following statements describes the accepted method for testing a thermostatic expansion valve?Not learned 92. If the superheat setting of a thermostatic expansion valve is set too low, what would be the result, assuming that the system has a single evaporator?Not learned 93. If the superheat value of the thermostatic expansion valve is adjusted too high, what would be the result?Not learned 94. What maintenance may be carried out on a thermostatic expansion valve?Not learned 95. If the needle and seat assembly is excessively eroded, the valve cage assembly can be replaced. In replacing the original valve cage assembly rated at 1/2 tons, what would be the result if the replacement valve cage was oversized at 5 tonsNot learned 96. Vapor bubbles present in the liquid upon arrival to the thermal expansion valve in a refrigeration system may cause erosion of the expansion valve's needle and seat. This, in turn, could cause what condition?Not learned 97. Alkylbenzene ISO 32 cSt synthetic refrigerant oil is miscible and suitable to use with which of the following refrigerants?Not learned 98. In addition to the drive belt itself, a V-belt that is tensioned too tight will cause excessive wear to what other drive component?Not learned 99. If a refrigeration system, equipped with a reciprocating compressor, has a liquid-line solenoid valve that is leaking during the "off" cycle, what would this cause?Not learned 100. Personnel servicing refrigeration systems that exposes them to commonly used refrigerants should wear what type of personal protective equipment?Not learned 101. When one belt of a multiple V-belt drive requires replacing, what will be required?Not learned 102. When installing a mechanical shaft seal on a refrigeration compressor, extreme care must be taken to prevent what from happening?Not learned 103. When a refrigeration system is being topped off with a small amount of refrigerant through the low side with the compressor running, what should be done?Not learned 104. Which of the valves listed is normally closed when charging the refrigeration system through the high side?Not learned 105. Which recovery procedure should be used to minimize the loss of oil from the system during the recovery of refrigerant from small appliances such as a water cooler?Not learned 106. Technicians servicing small refrigeration appliances can employ what type of recovery equipment?Not learned 107. What is the color coding for a storage container of R-134a refrigerant?Not learned 108. An air-cooled refrigerated container unit using R-134a as a refrigerant has a box temperature set point of 32°F, but it is currently operating with a stable supply air temperature of 35°F. The fresh air makeup vent is closed, the unit is operating at 460 VAC/60 Hz, and the unit is in full capacity cool (modulating valve 100% open). Using the illustrated troubleshooting guide, what would be the normal range of expected discharge pressures if the ambient air temperature is 90°FNot learned 109. High suction pressure accompanied by low suction temperature to a refrigeration system compressor is caused by which of the following?Not learned 110. Which of the conditions listed could cause excessively low refrigerant pressure at the compressor suction of a TXV controlled refrigeration system?Not learned 111. Unusual noise coming from a refrigeration compressor can be caused by which of the following conditions?Not learned 112. If a refrigeration system were short of refrigerant, besides an elevated box temperature, what would be an observable symptom?Not learned 113. A refrigeration unit will tend to short-cycle when operating under what conditions?Not learned 114. An important component of pre-planning for fire emergencies is the general arrangement drawing. What type of drawing is the general arrangement drawing?Not learned 115. Pre-fire survey forms are particularly useful for collecting information pertaining to fire emergency response efforts. On what basis is this information collected?Not learned 116. Of all the individual components of a pre-fire planning package, which component contains information about emergency duty station locations and responsibilities for each crew member by position AND name?Not learned 117. Of the individual components of a pre-fire planning package, which component when used with stability charts would be particularly useful in decision-making as it applies to the effect of water accumulated during firefighting efforts and the free surface effect?Not learned 118. In what part of 33CFR can be found the recordkeeping requirements for specific machinery space operations onboard all ships of 400 gross tons or above other than a tanker that must be entered into an Oil Record Book?Not learned 119. You are the Chief Engineer onboard a general cargo vessel in excess of 1600 gross tons. To remain in compliance with the 33 CFR Subchapter O (Pollution), for non-tank vessel machinery space operations, which of the following requires an entry to be made in the Oil Record Book?Not learned 120. In accordance with 33 CFR Subchapter O (Pollution), how long must the Oil Record Book be maintained on board those vessels for which the regulations apply?Not learned 121. In accordance with 33 CFR Subchapter O (Pollution), which of the following statements is true concerning the signature of the Oil Record Book?Not learned 122. In accordance with 33 CFR Subchapter O (Pollution), which discharge of oil or oily mixture to sea is permissible?Not learned 123. The unlicensed crew requirements listed on the Certificate of Inspection reads as follows: 3 firemen/water tenders; 3 oilers. The vessel is about to depart on a foreign voyage, and has in the crew: 3 firemen/water tenders, 2 oilers, and one man, whose merchant mariner's document is endorsed QMED, any rating. You should __________.Not learned 124. The Certificate of Inspection for your vessel was issued in January. In March of the same year, you need to replace a cooling water pump for the refrigeration system. What action would be appropriate?Not learned 125. The minimum firefighting equipment to be maintained onboard a tank vessel, can be determined from the __________.Not learned 126. Where would you find a list of the firefighting equipment required on your vessel?Not learned 127. A water line ruptures under pressure and floods the engine room causing $30,000(USD) damage to the machinery. By law, this must be reported to the __________.Not learned 128. Oil sprays on to a hot piece of machinery, catches fire and causes $35,000 damage to your vessel. By law this must be reported to the __________.Not learned 129. Resonant vibrations, which can cause machinery failure, occur when which of the following conditions happen?Not learned 130. While examining results of vibration analysis of a rotating piece of machinery, you find very high amplitude/displacement readings at a very high frequency at one measuring point. What would that indicate?Not learned 131. With a machinery lubricating oil analysis program, it is important to monitor trends over time. What would be indicated by a sudden increase in metallic content of a recent sample of used diesel engine crankcase lubricating oil?Not learned 132. With a machinery lubricating oil analysis program, it is important to monitor trends over time. What would be indicated by elevated copper levels associated with a recent sample of used diesel engine crankcase lubricating oil?Not learned 133. Elevated metal levels present in a recent sample of used diesel engine crankcase lubricating oil is indicative of a condition. What would high silicon levels indicate?Not learned 134. Elevated metal levels present in a recent sample of used diesel engine crankcase lubricating oil is indicative of a condition. What would high iron levels indicate?Not learned 135. Which of the following fuel sampling methods would present the most reliable, accurate, and cost- effective option for shipboard use?Not learned 136. Fuel density is easily checked on board ship to facilitate proper fuel treatment. What is the maximum fuel density at 15°C allowed for proper centrifugation to take place?Not learned 137. Various tests while conducting a fuel oil analysis can be performed on board to facilitate proper centrifugation. What test provides the key data for selecting the correct purifier gravity disk for fuel oil centrifugal purifiers?Not learned 138. One of your ship's indirect-drive steering gear drive motors needs to be replaced. In accordance with 46 CFR Subchapter J, what minimum short-time rating should the replacement motor have in hours?Not learned 139. In accordance with 46 CFR Subchapter J (Electrical Engineering), which of the following electrical repairs is permitted?Not learned 140. In a closed-loop process control system, what term is used to describe the action of measuring the difference between the actual result and the desired result and using that difference to drive the actual result toward the desired result?Not learned 141. As a result of a load or setpoint change, in addition to minimizing the maximum value of the error, what are the two additional objectives of a closed-loop control system?Not learned 142. In a closed-loop process control system, what is meant by the proportional mode of control?Not learned 143. In a closed-loop process control system, what term is used to describe the progressive reduction or suppression of oscillation in a component?Not learned 144. When tuning a proportional-integral-derivative (PID) controller/loop, one should know/understand the influence of each action component on the loop. Which description of a component is correct?Not learned 145. As the engineer, it is necessary to tune a proportional-integral-derivative (PID) control loop. If the PID incorporates all three functions, which function(s) is/are dominant in the controller's performance?Not learned 146. A 'Proportional Only' controlled automatic process loop is oscillating continually, above and below the setpoint. To stabilize this controller and loop using the 'gain' adjustment, what controller/loop response would you expect upon process changes vs. setpoint?Not learned 147. According to the illustration, which of the following conditions would most likely cause Pump "A" to short cycleNot learned 148. When analyzing trend analysis data in reference to a critical value to avoid a catastrophic failure, what statement is true?Not learned 149. Assuming valve "A" is correctly aligned in the no-flow position as shown with the system in operation, which of the following statements is trueNot learned 150. While calibrating a 4-20 mA electronic, or a 3-15 psi pneumatic controller, with a process output of 50-250 psi, what is the controller span/range you are dealing with?Not learned 151. In a closed-loop process control system, what is meant by error?Not learned 152. In a closed-loop process control system, what term is used to describe the undesirable characteristic in which the error of a control system oscillates with constant or increasing amplitude?Not learned 153. Compatibility of fuel is easily checked onboard ship to ensure that serious problems do not result. What statement concerning fuel incompatibility is true?Not learned 154. You have completed repairs to a small galley refrigerator which uses a capillary tube and a hermetic compressor. The repairs required complete evacuation of the refrigerant and you find that you do not have a proper scale to weighing the amount of refrigerant you will recharge into the system. As the unit is critical to galley operations you must try and restore it to service. The most prudent course of action would be to do which of the following?Not learned 155. The component labeled "A", as shown in the illustration, would be identified as the __________Not learned 156. In a compression type automatic grease cup, the lubricant is forced into the bearing by__________.Not learned 157. Concerning the proper installation of the sensing bulb of a thermal expansion valve that is attached to the evaporator tail coil on a horizontal run, what statement is true?Not learned 158. Control system diagrams use standard symbols to describe the component function required for the system to achieve its intended control functions. Standard symbols are used to allow engineers to describe the logic and component functions. Define the function of symbol "I" as shown in the illustrationNot learned 159. The most cost-effective method of recovering refrigerant from a low-pressure chiller with more than 500 lbs. of refrigerant and to meet EPA requirements is to recover the refrigerant using what protocol?Not learned 160. Which of the following analytical tools can be used for trend analysis? I) Lube oil analysis II) Vibration analysis III) Performance data analysis IV) Thermographic analysisNot learned 161. Which of the following condition-based maintenance data continuous monitoring techniques has the greatest value in predicting wear?Not learned 162. Which of the following conditions will occur if the power element of the thermostatic expansion valve shown in the illustration loses its chargeNot learned 163. Which of the following maintenance criteria would be the basis of condition-based maintenance?Not learned 164. Which of the following maintenance criteria would be the basis of planned maintenance?Not learned 165. Which of the following is true concerning the class "D" air conditioning system shown in the following illustrationNot learned 166. Which of the following types of maintenance would be considered a reactive approach to maintenance as opposed to proactive?Not learned 167. Which of the following would be a positive outcome associated with performing a trend analysis of data acquired from lube oil testing, vibration sensors, performance data sensors, and thermographic sensors? I) Avoidance of catastrophic failures. II) Determining the need of when to perform corrective maintenance. III) Improving the overall effectiveness of the engineering plant.Not learned 168. The function of item "7" shown in the illustration is to __________Not learned 169. A horizontal electro-mechanical anchor windlass is equipped with two warping heads, two wildcats, two manual brake handwheels, two clutch control levers, and a multipoint lever-operated pedestal- mounted controller. What statement is true as it pertains to the operation of the windlass clutch control levers?Not learned 170. A hydraulic cylinder is fitted with a cushioning device. The piston abruptly slows towards the end of its stroke, then continues to creep to the completion of its stroke. Which of the following represents the probable cause?Not learned 171. A hydraulic flow control circuit is shown in the illustration and is known as a __________Not learned 172. In the illustrated schematic, which component is the device that was used to replace the six-way valve, as found on many older type steering gearsNot learned 173. In the illustration shown, an efficient seal is maintained between the suction cover and the volute by __________Not learned 174. You are installing a new refrigeration system aboard your vessel. The system comes with a 240 psi rupture disk, a safety valve set at 240 psi and a pressure gauge connection and gauge. In accordance with 46 CFR, what is the preferred setup for installing the equipment on the condenser?Not learned 175. What is the length of the stud used to secure the packing gland shown in the illustrationNot learned 176. The line labeled "C", as shown in the illustration, would be identified as the ______Not learned 177. The line labeled "G", as shown in the illustration, would be identified as the ______Not learned 178. Machinery spaces must be designed to minimize the exposure of personnel to noise in accordance with U.S. regulations. Manned machinery space noise must not exceed which noise level?Not learned 179. What maintenance management scheme does trend analysis support?Not learned 180. As a management level engineering officer, you are apt to be the primary investigator investigating the root cause of the failure of a piece of machinery. Besides collecting and preserving the physical evidence of the failure and interviewing key personnel, which of the following supplemental information should be considered? I) Onboard operating and maintenance procedures II) Historical operating and maintenance records III) Technical manuals and specifications IV) Personnel training recordsNot learned 181. As a management level engineering officer, you are apt to be the primary investigator investigating the root cause of the failure of a piece of machinery. In collecting the necessary data for the root cause analysis, what should be your FIRST priority?Not learned 182. When measuring vibration, an engineer should be concerned with recording the velocity or displacement of the measurement. Which other factor should also be of concern?Not learned 183. How would you prevent the rudder from moving while a repair is made on the steering system using the illustrated actuatorNot learned 184. If a new assistant engineer reports onboard, ideally, who should conduct the familiarization training specific and relevant to the engineer's routine maintenance and watchkeeping duties?Not learned 185. In new construction or during significant steel plate replacements, what is the procedure of "line heating"?Not learned 186. What will happen if oil under pressure is supplied to the area noted as "N" on the vane in the illustrationNot learned 187. One is slated to be a senior officer of a new vessel and is to participate in the 'Builder's Sea Trials'. What would you consider your responsibilities when asked to witness scheduled tests?Not learned 188. The operation of the device shown in the illustration is dependent upon __________Not learned 189. In order to establish a good climate for communication it is important to minimize status barriers. Which of the following techniques would be the best way to minimize status barriers on a one-on-one, face-to-face conversation of a sensitive nature with an employee?Not learned 190. Prior to arrival in Charleston, SC your vessel must conduct drills within 48 hours prior to entry and log that in the vessel logbook. Alternatively, you can log regularly scheduled quarterly drills according to 33 CFR regulations governing ports and waterways safety. Which of the following are included in the drills that must be performed? (1) Operation of the main steering gear from within the steering gear compartment. (2) Operation of the means of communications between the navigating bridge and the steering compartment. (3) Operation of the alternative power supply for the steering gear, if the vessel is so equipped. (4) Operation of the low lube pressure trip on the main engine. (5) Operation of the reverse power relay on the ship's diesel generator.Not learned 191. The hydraulic pump which would be mounted on the unit shown in the illustration, may begin to cavitate if __________Not learned 192. In the pump shown in the illustration, what is the distance from the bottom of the inlet to the bottom end of the motor shaftNot learned 193. When pumping down an air conditioning system to test the low-pressure cutout switch, assuming that the compressor is running, what should be done to initiate the test?Not learned 194. Why is a purge recovery unit typically fitted on low-pressure centrifugal chillers?Not learned 195. While recharging a commercial type refrigerator, with a hermetically sealed compressor with no pressure gauges, what could you use or do to achieve a proper full charge?Not learned 196. A reciprocating refrigeration compressor may be tested for leaking discharge valves by stopping the compressor, turning the discharge service valve all the way in, and then turning the compressor over by hand. If the discharge valves are leaking, the high-side pressure gauge will show pressures which react in which way?Not learned 197. Referring to the illustration, suppose after initiating the oil discharge mode, the oily-water separator fails to come out of the oil discharge mode in a timely fashion. Cracking open the upper sampling valve reveals the presence of oil exiting under positive pressure. What is most likely the causeNot learned 198. Referring to the illustration, suppose while in the oil separation processing mode, the oil content detector display screen shows 17.9 ppm and the oily-water separator is discharging back to the bilge water holding tank for recirculation. What is most likely the causeNot learned 199. What responsibilities does a Senior Officer have while on Builder's Sea Trials of a new vessel to which one will be assigned?Not learned 200. Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?Not learned 201. A sequence-of-events diagram can be a useful graphical tool used for root cause failure analysis. Several software programs are able to generate such diagrams. What statement concerning sequence-of-events diagrams is true?Not learned 202. You are at a shipyard in dry-dock. New anodes for the impressed current system are being installed. The yard workers are installing the capastic layer on the hull. What is the primary function of the capastic epoxy?Not learned 203. As shown in the illustration, if figure "21" indicates the "TOP VIEW" of an orthographic projection, and figure "11" indicates the "FRONT VIEW", which figure would best represent the correct "RIGHT SIDE VIEW"Not learned 204. What is true concerning highly contaminated refrigerant recovered from burned out small appliances?Not learned 205. Using the device shown in the illustration, which of the following statements is true when adding refrigerant as a vapor to the low side of the refrigeration systemNot learned 206. Using the illustrated chart giving the boiling point of moisture at various depths of vacuum, with an ambient temperature of 72°F, what depth of vacuum would be associated with the BEST chance of achieving a dehydration evacuation with a deep vacuum pumpNot learned 207. Of the various possible methods shown in the illustration, which is the correct method of attaching a TXV feeler bulb to a large suction line (7/8" and larger) with a horizontal runNot learned 208. If a vessel is to be laid up for an extended period of time with minimal utilities provided from ashore, boilers may be laid up dry. What statement concerning dry boiler lay-up is true as it relates to protecting boiler watersides?Not learned 209. If a vessel is to be laid up for an extended period of time with minimal utilities provided from ashore, boilers may be laid up dry. What statement is true as it relates to protecting boiler firesides?Not learned 210. If a vessel is to be laid up for an extended period of time with minimal utilities provided from ashore, what statement is true as it relates to preparing a refrigeration system for lay-up?Not learned 211. If a vessel is to be laid up for an extended period of time with minimal utilities provided where freezing is not a concern, boilers may be laid up wet. What statement concerning wet boiler lay-up is true?Not learned 212. A vessel you are sailing on as chief engineer had its last dry-docking survey 2 years prior and is not enrolled in an underwater survey program in lieu of dry-docking. When is the next dry-docking due?Not learned 213. While a vessel is underway in periodically unmanned engine room condition, No.2 SSDG is to be down for repairs for at least the next 24 hours. Since the vessel is nearing US navigable waters, as chief engineer you wish the bridge be immediately informed of the availability of No.2 SSDG to support the electrical power requirements of maneuvering. How would you best insure that the bridge be so informed?Not learned 214. While a vessel is underway in periodically unmanned engine room status, the oily-water separator is undergoing extensive maintenance and repairs and will not be available for service for another 24 hours. With bilge holding tanks nearing capacity, as chief engineer you wish to be informed of when the oily-water separator is available for service. How would you best ensure that you will be so informed?Not learned 215. Vibration analysis can provide comparative data of operating condition of rotating machinery. At what positions should such readings be taken at bearing housings and foundations?Not learned 216. Of the views labeled "1", "2", "3", and "4", select the one that correctly represents the right side view of the unnumbered object in the illustrationNot learned 217. An air-cooled refrigerated container unit using R-134a as a refrigerant has a box temperature setpoint of -15°F, but it is currently operating with a stable return air temperature of 0°F. The fresh air makeup vent is closed, the unit is operating at 460 VAC/60 Hz, and the unit is in full capacity cool (modulating valve 100% open). Using the illustrated troubleshooting guide, what would be the normal range of expected discharge pressures if the ambient air temperature is 90°FNot learned 218. The introduction of outside air to the air conditioning system is 90°F with a relative humidity of 60%. The air has been conditioned to 70°F with a relative humidity of 80%. Using the psychrometric chart, shown in the illustration, determine the quantity of moisture removed from one pound of the conditioned airNot learned 219. Referring to the device shown in the illustration, which statement is TRUE in regard to what happens when the rudder stock rotatesNot learned 220. Leadership style sometimes must change with the readiness level of the employees. Which of the following employee readiness level scenarios would be best suited for adopting a delegating leadership style?Not learned 221. One of the means of alternative dispute resolution regarding a collective bargaining agreement dispute is arbitration. What is meant by arbitration?Not learned 222. In the illustration shown, an efficient seal is maintained between the suction cover and the volute by __________Not learned 223. Which of the fluids listed is NOT suitable for use as a secondary refrigerant?Not learned 224. One of your ship's direct-drive steering gear drive motors needs to be replaced. In accordance with 46 CFR Subchapter J (Electrical Engineering), what minimum short-time rating should the replacement motor have in hours?Not learned