更多"The load limitation of governor sho"的相关试题:
[单项选择]The （） should be gradually reduced after FWE.
A. fuel oil
B. cooling water
C. starting air
D. auxiliary blower
[单项选择]A diesel engine should not be operated at low loads for long periods of time because（）
A. heavy carbon deposits will buildup on the valves and in the exhaust
B. fuel dilution is increased at low load
C. exhaust valves may be damaged
D. all of the above
[单项选择]Manila slings should not be used to load（）.
A. cotton
B. lumber
C. steel
D. tires
[单项选择]Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
A. Sensitivity
B. Power
C. Speed droop
D. Compensation
[单项选择]The most common contaminate of governor hydraulic fluid is （）.
A. moisture
B. dirt
C. acid
D. air
[单项选择]An overcorrecting and unstable engine governor operation is known as（）.
A. droop
B. dead banding
C. dash potting
D. hunting
[单项选择]A governor automatically controls engine speed by regulating （）.
A. fuel supply
B. firing order
C. engine load
D. oil level
[单项选择]Which is the summer load waterline on the load waterline mark?（）.
A. The first line at the bottom
B. The second line from the bottom
C. The third line from the bottom
D. The fourth line from the bottom
[单项选择]Which is the winter load waterline on the load waterline mark?（）.
A. The line over the summer load waterline
B. The line above the tropical load waterline
C. The line below the tropical load waterline
D. The line between the summer and the winter north Atlantic load waterline
[单项选择]The governor brake shall be capable of controlling the speed of lowering a fully equipped lifeboat with its complement of persons on board at（）.
A. safe speed only specified
B. not less than 120 feet per minute
C. not more than 120 feet per minute
D. not more than 90 feet per minute
[单项选择]The ability of the governor to prevent fluctuations in engine speed is termed （）.
A. sensitivity
B. stability
C. promptness
D. speed droop
[单项选择]The direct acting mechanical governor used with some small diesel engines, controls fuel flow to the engine by（）
A. governor flyweight action on a pilot valve which controls fuel injection
B. governor flyweight motion acting on fuel controls through suitable linkage
C. positioning a butterfly valve in the fuel delivery system positioning
D. a servomotor piston attached to the fuel controls
[单项选择]A spring-loaded centrifugal flyweight governor responds to reduced engine load with an immediate increase in （）
A. pilot valve oil pressure
B. speeder spring force
C. compensation needle valve clearance
D. centrifugal force on the flyweights
[单项选择]On most diesel engines, the governor controls the output speed by （）.
A. controlling the amount of fuel injected into the cylinders
B. varying the speed of the turbocharger
C. adjusting the compression ratio
D. changing the timing of the fuel injection camshaft
[单项选择]In a simple mechanical governor, the （）
A. centrifugal force rotates the ball-head
B. flyweight centrifugal force is balanced by spring force
C. flyweight centrifugal force is balanced by hydraulic pressure
D. speeder spring alone actuates the fuel control rod
[单项选择]Defective governor in a diesel engine may lead to （）.
A. smoky exhaust
B. starting failure
C. ignition relay
D. over speed
[单项选择]If a hydraulic governor has been refilled with oil, the engine should be operated until it reaches normal temperaturethen the air should be purged, and the（）
A. rack position should be adjusted
B. compensating needle valve should be opened fully compensating
C. needle valve should be adjusted to stabilize operation
D. speed limiting device should be adjusted
