Q611 - Steam Plants, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. The leakage of air into the pump casing by way of the packing gland of a condensate pump, is prevented by __________.Not learned 2. Which of the conditions listed could prevent a centrifugal condensate pump from developing its rated capacity?Not learned 3. Which of the following statements is true concerning lube oil coolers?Not learned 4. The primary source of steam to the auxiliary exhaust system is typically supplied directly from __________.Not learned 5. High-pressure steam drains are normally discharged to the __________.Not learned 6. Excessively hot water returning to an atmospheric drain tank indicates __________.Not learned 7. A contaminated steam generator is used to produce saturated vapor from collected __________.Not learned 8. Which statement listed represents a vital function of the main condenser?Not learned 9. While underway, vacuum in the main condenser is primarily caused by the __________.Not learned 10. If the main condenser were operating at a vacuum of 28.7"Hg, a condensate discharge temperature of 81°F, a seawater inlet temperature of 72°F, and a seawater outlet temperature of 79°F, what would be the condensate depressionNot learned 11. The automatic recirculating valve in the main condensate recirculating line is controlled by a temperature sensor which is located at the __________.Not learned 12. In a closed feed and water cycle, which of the conditions listed could prevent vacuum from reaching the desired level?Not learned 13. Air accumulated in the after condenser of the air ejector unit is discharged directly to the __________.Not learned 14. Air accumulated in the intercondenser of the air ejector assembly is discharged directly to the __________.Not learned 15. The loop seal connected to the main condenser returns the drains from the __________.Not learned 16. Under normal conditions, the rate of heat transfer in a feedwater heater is most greatly affected by the __________.Not learned 17. Vent condensers are usually an integral part of deaerating feed heaters and serve to condense __________.Not learned 18. If the DC heater relief valve lifts frequently, the cause can be excessive __________.Not learned 19. Which of the following statements is correct regarding the start-up operation of a non-condensing turbine-driven feed pump?Not learned 20. An excess pressure governor would normally be used on a __________.Not learned 21. Which of the following is the advantage of operating a typical closed feedwater system for a marine boiler when compared to an open feedwater system?Not learned 22. The boiler main feed stop check valve is located nearest the __________.Not learned 23. In the boiler steam and water system, pressure is highest in the __________.Not learned 24. 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 25. The temperature of the fuel oil received during bunkering operations is critical in determining the __________.Not learned 26. If it should become necessary to abandon a compartment because of the danger of a large steam leak on a boiler, which of the following actions represents the best avenue of escape?Not learned 27. Steam tables can be used to obtain the __________.Not learned 28. As steam first enters the main propulsion turbine, which of the following energy conversions takes place?Not learned 29. As compared with a typical front fired boiler, which of the listed conditions represents an advantage of a top fired boiler?Not learned 30. That portion of the steam drum, containing a manhole for internal access to the drum, for the purpose of cleaning, inspecting, and carrying out repairs, is called the __________.Not learned 31. Depending upon the design of the boiler, the constant pressure maintained at the steam drum or the superheater outlet is known as the __________.Not learned 32. Reaching which "end point" will result in the most severe damage to the boiler?Not learned 33. The greatest resistance to heat transfer from the fireside to the waterside of a water-tube boiler takes place in the __________.Not learned 34. The advantage of installing waterwall tubes in a boiler furnace is to __________.Not learned 35. The MOST common cause of heat blisters developing on boiler generating tubes is due to __________.Not learned 36. What is the cause of "laning" in a boiler tube bank?Not learned 37. An advantage of using boiler furnace studded water wall tubes packed with refractory is that __________.Not learned 38. Which of the following statements represents the function of insulating brick?Not learned 39. To assure a long service life for boiler refractory materials after installation, the most effective method is to __________.Not learned 40. To make temporary emergency repairs to brickwork in a boiler furnace, which of the materials listed should be used?Not learned 41. Where is the "dry pipe" located in a boiler?Not learned 42. Which of the following locations could desuperheated steam be considered to occur?Not learned 43. Which of the following is the best reason for opening the air cock when draining a water-tube boiler?Not learned 44. A boiler safety valve must be capable of __________.Not learned 45. While your vessel is underway at normal speed, a steam drum safety valve develops a significant leak. Your first corrective action should be to __________.Not learned 46. The last two digits stamped on a fuel oil atomizer sprayer plate represents the cross-sectional area ratios of the tangential slots and orifice. This ratio determines the __________.Not learned 47. To obtain the best mixing of air and fuel with a fuel oil atomizer, you need to adjust the __________.Not learned 48. Compared to the return flow oil burner system, an internally mixed steam atomizer requires __________.Not learned 49. Excessive accumulation of carbon deposits on a boiler burner throat ring and diffuser could result in __________.Not learned 50. Scavenging air is supplied to steam sootblower elements to __________.Not learned 51. In a boiler equipped with a convection type superheater, the superheater tubes are located __________.Not learned 52. Which of the types of superheaters listed has the flattest superheat temperature curve?Not learned 53. After steam has been raised and a boiler is being placed on the line, the superheater vent can be closed when __________.Not learned 54. The superheater vents should always be open when __________.Not learned 55. Which of the listed conditions can cause high superheater outlet steam temperature in an automated boiler?Not learned 56. You are standing watch in the engine room of a steam vessel. You should blow down a gauge glass periodically to __________.Not learned 57. In the absence of the manufacturer's instructions, a good procedure in reassembling a high-pressure boiler gauge glass is to tighten the nuts in pairs and __________.Not learned 58. A two-element boiler feedwater regulator is controlled by __________.Not learned 59. The two-element feedwater regulator functions similarly to the three-element feedwater regulator but does not utilize __________.Not learned 60. A single element boiler feedwater regulating system used aboard ship utilizes __________.Not learned 61. The boiler feedwater control valve varies the unity relationship between steam and water flow during periods of __________.Not learned 62. A major difference between the two-element and the three-element feedwater regulator control systems, is that a three-element system will additionally measure and incorporate the __________.Not learned 63. Which color burner flame would indicate too much excess air?Not learned 64. Insufficient combustion air supply will cause an atomizer flame to appear as a __________.Not learned 65. A higher than normal stack gas temperature could indicate __________.Not learned 66. Before an explosion can occur in a boiler furnace, there must be an accumulation of unburned fuel, sufficient air to form an explosive mixture, and a __________.Not learned 67. If the flue gas oxygen content is too high, you should __________.Not learned 68. Which of the conditions listed could cause steam formation in the economizer?Not learned 69. The minimum feedwater inlet temperature to a boiler economizer is determined by the __________.Not learned 70. Which combustible element in fuel oil is considered a significant and major source of air pollution?Not learned 71. When heated, fuel oil will __________.Not learned 72. The most harmful slag forming compounds found in fuel oils are __________.Not learned 73. In accordance with 46 CFR Subchapter D (Tank Vessels), what is the minimum flash point of oil to be used as fuel for the boilers?Not learned 74. The minimum temperature requirements for fuel oil in storage tanks is related to the _________.Not learned 75. Which characteristic of fuel oil is the most significant when determining the temperature to which the fuel oil must be heated for proper atomization?Not learned 76. Which of the following actions should be taken FIRST when water is found in the fuel oil settling tank?Not learned 77. Fuel oil solenoid valves at the burner fronts should be of the manual reset type to __________.Not learned 78. Why should the fuel oil be recirculated before lighting off a cold boiler?Not learned 79. Oil accumulation in boiler water would __________.Not learned 80. A sample of boiler water can be chemically tested for alkalinity by initially adding a few drops of phenolphthalein and then slowly titrating the water sample until the __________.Not learned 81. Excessive foaming in a steaming boiler can cause damage to the __________.Not learned 82. Proper use of the boiler surface blow will __________.Not learned 83. Boiler tube failures can result from __________.Not learned 84. If manual control of the water level in a steaming boiler is required, the proper method of control is with the auxiliary feed __________.Not learned 85. A boiler is to be secured in port. After the burners have been secured, the forced draft fan and air registers should be secured __________.Not learned 86. What is the danger if a boiler is brought on the line with its steam pressure much higher than that of the boiler already on the line?Not learned 87. When preparing to cut a boiler in on the line, you determine that the steam pressure of the incoming boiler is about 5 psig above line pressure. Which of the following steps should you take next?Not learned 88. Which of the following precautions should be taken prior to lighting off a boiler?Not learned 89. Which of the following items should be checked each time the firing rate or forced draft pressure is adjusted?Not learned 90. If the water level in one boiler of a two-boiler plant rapidly falls out of sight, which of the following actions should be carried out FIRST?Not learned 91. Water in the fuel supply to a steaming boiler can be detected by __________.Not learned 92. The most practical method of determining the condition of a shaft bearing while the shaft is in operation is to __________.Not learned 93. Babbitt is a metal alloy commonly used for lining __________.Not learned 94. Chamfers, located at the parting edges of horizontal split sleeve type bearings, are used to facilitate oil storage and distribution. They are machined __________.Not learned 95. Which of the journal bearings listed most easily accommodates the minor turbine shaft misalignment?Not learned 96. A common cause of the Babbitt linings cracking in a turbine journal bearing is from ________.Not learned 97. For a large main propulsion turbine, the most commonly used turbine thrust bearing is the __________.Not learned 98. When a turbine is in operation, a rotor position micrometer is used to determine any change in rotor __________.Not learned 99. As found in a reduction gear drive system, thrust bearings serve to __________.Not learned 100. What is generally found at the end of the low-pressure turbine rotor of a cross compound turbine arrangement?Not learned 101. The astern element of a main propulsion turbine is usually designed as a __________.Not learned 102. Which of the parts listed for a reaction turbine serve the same function as the nozzles of an impulse turbine?Not learned 103. A pressure drop occurs across both the moving and fixed blades of a reaction turbine as a result of the __________.Not learned 104. In an impulse turbine, the fixed blades function to __________.Not learned 105. A turbine assembly in which steam flows in series through a high-pressure turbine and then on to a low- pressure turbine, with both turbines driving a common reduction gear through separate shafts, is classified as _________.Not learned 106. When starting a turbo-generator, you must provide lube oil pressure to the governor power piston by means of __________.Not learned 107. To test an automatic low lube oil pressure trip on an idling turbo-generator and at the same time prevent the chance of bearing damage, you should __________.Not learned 108. An efficient seal is normally obtained between the upper and lower halves of a turbine casing by __________.Not learned 109. Which of the devices listed is found on an LP main propulsion steam turbine casing?Not learned 110. Labyrinth seals used to reduce leakage around a turbine shaft are constructed of __________.Not learned 111. Shrouding on impulse turbine blading is held in place by __________.Not learned 112. The correct radial clearances between the rotor and the casing in a propulsion turbine are maintained by the turbine __________.Not learned 113. The purpose of the sentinel valve installed on a turbine casing is to __________.Not learned 114. Labyrinth seals are used on rotating steam turbine shafts to reduce external leakage. How is this accomplished?Not learned 115. Which type of packing is primarily utilized to control steam leakage from the casing of a modern auxiliary turbine?Not learned 116. Which of the following operational practices is helpful in avoiding the accumulation of condensate in the main reduction gear casing?Not learned 117. Which of the devices listed is generally used to engage the main engine turning gear to the high- pressure turbine high-speed pinion?Not learned 118. The main propulsion shaft turning gear usually connects to the free end of the high-speed high-pressure pinion because the __________.Not learned 119. The jacking/turning gear mechanism of a main propulsion geared turbine installation is normally connected through mechanical linkage to the _______.Not learned 120. Which of the following statements defines the term "axial float" in reference to reduction gears?Not learned 121. Axial movement in a gear-type flexible coupling is provided for by __________.Not learned 122. In any governor there is a small range of speed in which no corrective action occurs. This speed range is called the governor deadband and is caused by __________.Not learned 123. Which of the following is used to hold the poppet valves closed in a turbo-generators nozzle control speed regulator?Not learned 124. The main throttle valve on a main propulsion turbine admits steam directly into the __________.Not learned 125. Which of the following statements represents the significance of the differential pressure existing between the nozzle block and steam chest of a turbogenerator equipped with a lifting beam mechanism?Not learned 126. As lube oil absorbs moisture its dielectric strength can be expected to __________.Not learned 127. During high-speed operation of the main turbine propulsion unit, the heat absorbed by the lubricating oil is removed by the __________.Not learned 128. When the temperature of the main turbine lubricating oil is lowered, an increase will occur in the __________.Not learned 129. The gravity tank in a gravity lube oil system serves to __________.Not learned 130. In a pressure type main propulsion turbine lubrication system, the lube oil service pumps normally take suction from the main sump and discharge directly to the __________.Not learned 131. To assure the main propulsion turbine bearings are receiving the proper lube oil supply, you should check the __________.Not learned 132. After starting the main lube oil pump in a gravity-type lube oil system, you should verify that the gravity tanks are full by __________.Not learned 133. Magnets are installed in the main propulsion turbine lube oil strainers to attract metal particles released through wearing of the __________.Not learned 134. In order to obtain the best performance with a lube oil purifier, the lube oil inlet temperature should __________.Not learned 135. In the operation of a lube oil clarifier, the position of the oil/water interface should be __________.Not learned 136. The term "separation" as used in oil purification refers to the removal of __________.Not learned 137. With vacuum up and the main propulsion turbine standing by while awaiting engine orders, it is necessary to roll the unit alternately ahead and astern every five minutes to __________.Not learned 138. The FIRST step in breaking vacuum on a main turbine unit should be to __________.Not learned 139. In securing the main turbines, steam to the second stage air ejectors should be left on for a short period of time in order to __________.Not learned 140. What must you do before placing the jacking gear in operation on a main turbine unit?Not learned 141. The jacking gear must be engaged as quickly as possible when securing the main turbines in order to __________.Not learned 142. What should you do prior to rolling the main turbines in preparation for getting underway?Not learned 143. A common method of preheating main turbine lube oil prior to rolling over the main unit would be to ______.Not learned 144. The level of the contaminated drain inspection tank continually decreases when steam is admitted to a fuel oil double bottom tank. You can expect __________.Not learned 145. If the main and standby lube oil service pumps of the main engine fail while underway at sea, __________.Not learned 146. The turbine of a turbo-electric drive should be secured by __________.Not learned 147. Which of the following methods is used to securely fasten the Babbitt lining of a reduction gear bearing to its shell?Not learned 148. When vapor is in contact with and remains at the same temperature as the boiling liquid from which it was generated, the vapor and liquid are said to be in which of the following?Not learned 149. According to the illustration, what actuates the bellows "I" in the gland seal regulatorNot learned 150. According to the illustration, what is the normal function of the component shownNot learned 151. According to the illustration, what part number identifies the "igniter"Not learned 152. Auxiliary steam at full operating pressure is supplied from the boiler directly to the __________.Not learned 153. How is an auxiliary turbine boiler feed pump normally stopped?Not learned 154. To avoid acid corrosion of the economizer tubes when blowing tubes __________.Not learned 155. The base ring shown in the illustration is identified by the letter __________Not learned 156. Before blowing tubes in a boiler equipped with steam sootblowers, you should __________.Not learned 157. If a boiler generates saturated steam at 75.3 psig, how much heat is required to change the water into steam if the feedwater temperature is 220°FNot learned 158. The boiler superheater shown in the illustration is a/an __________Not learned 159. The boiler superheater vent, using the illustration, would be connected to the part labeled "____"Not learned 160. The boiler water gauge glasses should be blown down __________.Not learned 161. When a boiler water test indicates a pH value of 6, you should __________.Not learned 162. The Butterworth heater shown in the illustration receives steam at approximately __________Not learned 163. The component labeled "F" as shown in the illustration is __________Not learned 164. The component labeled "II", as shown in the illustration, is called the __________Not learned 165. Which of the coupling types listed is shown in the illustrationNot learned 166. Deaeration of condensate primarily occurs in what section of the illustration shownNot learned 167. The device shown in the illustration is a/an __________Not learned 168. In the diagrammatic arrangement of the thrust bearing, shown in the illustration, the direction of shaft rotation and the direction of thrust are indicated respectively by arrows __________Not learned 169. The feedwater heater shown in the illustration is actually comprised of three separately functioning heat exchangers. These heat exchangers are identified as the __________Not learned 170. Which of the following conditions is indicated by oil flowing through a lube oil gravity tank overflow sight glass?Not learned 171. Which of the following statements concerning boiler steam drum surface blow piping is correct?Not learned 172. Which of the following statements describes how the main propulsion turbine overspeed relay initiates closing of the throttle valve?Not learned 173. Which of the following statements about gravity type lube oil systems is correct?Not learned 174. Which of the following statements represents the function of a turbine gland exhaust condenser?Not learned 175. Which of the following statements is true concerning the coupling shown in the illustrationNot learned 176. Which of the following statements is true concerning the turbine shown in the illustrationNot learned 177. As found in a basic pneumatic automatic combustion control system, the function of a standardizing relay is to __________.Not learned 178. The illustrated burner atomizer assembly is __________Not learned 179. In the illustration of a typical ship service turbo-generator control system, the handle labeled "B" is used to _______________Not learned 180. The intermediate pressure bleed steam system, shown in the illustration, is used to supply steam at approximately __________Not learned 181. The items labeled "D" and "M" as indicated on the illustration are commonly called ________Not learned 182. On a main propulsion turbine bearing, the readings obtained with a bridge gauge represent the __________.Not learned 183. How many Curtis stages are contained in the turbine shown in the illustrationNot learned 184. Why is it necessary to have a relief valve protect the deaerating feed tank from internal pressure?Not learned 185. During normal operation of a main propulsion turbine, the lube oil supply temperature to the bearings should be maintained at approximately __________.Not learned 186. When operating with the auxiliary feed line, feed water flow is controlled __________.Not learned 187. Operating a steam turbine propulsion unit at medium-speed, in an area with extremely cold sea water and the main circulating pump providing full cooling water flow to the condenser will result in __________.Not learned 188. The original bridge gauge reading for a reduction gear bearing was measured as 0.008 inches. A year later, the bridge gauge reading for the same bearing is 0.010 inches. What would this indicate?Not learned 189. Originally steam ship f/o service and settling tanks were designed with only a high suction and a low suction and no other valves. What was the purpose of the low suction?Not learned 190. Overheating of the generating tubes will occur when a boiler reaches its end point of __________.Not learned 191. Packing rings installed on auxiliary turbines are generally lubricated by __________.Not learned 192. A pilot valve and servomotor are utilized in mechanical-hydraulic governing systems on a turbo- generator unit in order to __________.Not learned 193. To prevent a small plastic refractory wall patch repair from falling into the furnace of a boiler, you should __________.Not learned 194. The property of a fuel oil which is a measurement of its available energy, is known as its __________.Not learned 195. The purpose of the mica used in a boiler water gauge glass assembly is to prevent __________.Not learned 196. The reduction gear shown in the illustration is a/an __________Not learned 197. After routine blowing of tubes at sea, there should be a decrease in the __________.Not learned 198. To safely decrease the boiler firing rate, you should always reduce the fuel pressure __________.Not learned 199. A secondary function of the refractory installed in a marine boiler is to __________.Not learned 200. When securing a main propulsion turbine equipped with carbon packing glands, the vacuum should always be broken before securing the gland seal steam because __________.Not learned 201. Steam assist fuel atomizers are converted to straight mechanical atomizers in order to __________.Not learned 202. In the system illustrated the valves at point "A" are __________Not learned 203. A triple element, main propulsion, boiler feedwater regulating system commonly used aboard ship utilizes __________.Not learned 204. Which of the following types of bearings are used as line shaft bearings?Not learned 205. According to the data given in illustration, which of the following would be the physical state of the fluid at a gauge vacuum of 28.09 inches Hg, and 117.99 degrees FahrenheitNot learned 206. If the main condenser were operating at a vacuum of 28.5" Hg, a condensate discharge temperature of 86°F, a sea water inlet temperature of 72°F, and a sea water outlet temperature of 79°F, what would be the condensate depressionNot learned 207. If a boiler generates saturated steam at 125.3 psig, how much heat is required to change the water into steam if the feed water temperature is 240°FNot learned 208. According to the data given in the illustration, which of the following would be the physical state of the fluid at a gauge vacuum of 29.00 inches Hg, and 85.21 degrees FahrenheitNot learned