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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q532 - Motor Plants II
78. In a Roots-type rotary blower, the volume of air delivered is directly proportional to __________.
The volume of air delivered by a Roots blower is directly proportional to engine speed because it is a positive-displacement machine that moves a fixed volume of air per revolution; blower speed is directly linked to engine speed in a mechanically driven system.
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