更多"For a generator engine, after passi"的相关试题:
[单项选择]After passing through the expansion valve the refrigerant should be in the state of （）.
A. vapor
B. liquid
C. solid
D. None of the above is tree
[单项选择]After passing through the turbine the exhaust gas is conducted out into the（）.
A. intercooler
B. compressor
C. cylinder
D. open air
[单项选择]The cleaned heated oil, after passing through the centrifuges, is to be pumped to a （）.
A. settling tank
B. service tank
C. ballast tank
D. drain tank
[单项选择]In motor-ships, （）, after passing through main and motion bearings and oil cooled pistons, etcis either retained in the bedplate.
A. the fuel oil
B. the lubricating oil
C. the refrigerating oil
D. the hydraulic oil
[单项选择]Higher than normal temperature air passing through the intake of a diesel engine will result in（）
A. greater overall efficiency
B. greater fuel economy
C. lower horsepower
D. lower compression ratio
[单项选择]A direct current passing through a wire coiled around a soft iron core is the description of a simple（）.
A. magnetic shield
B. electromagnet
C. piezoelectric device
D. electromagnetic domain
[单项选择]To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
A. Speed limiting governor
B. Over-speed governor
C. Over-speed trip
D. Over-speed relay
[单项选择]If cooling water flow through the after-cooler is interrupted,the power output of a turbocharged diesel engine will drop because the （）
A. turbocharger will stall
B. density of the air charge will decrease
C. scavenge effect will increase
D. exhaust pressure will increase
[单项选择]The governor of a generator engine is to （）.
A. make the engine stop
B. regulate the timing of camshafts
C. make the rpm stabilize at any required value
D. make the engine run at nearly constant speed
[单项选择]If a diesel engine driving a generator turns over freely but fails to fire properly, the cause could be （）
A. excessive compression pressure
B. air in the fuel lines
C. high fuel pressure
D. excessive load
[单项选择]In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move（）
A. up and draw in a fresh air charge
B. down to burn off fuel
C. down to compress the fuel air charge
D. up and force out the exhaust gases
[单项选择]Failure to open the diesel engine test cocks after a long period of shutdown, prior to starting may result in （）
A. an air bound fuel system
B. damage to cylinder heads and pistons
C. excessive fuel injection
D. excessive air valve lift
[单项选择]Immediately after starting a diesel engine, normal raw water and jacket water pressure are indicatedHowever, the jacket water temperature continues to rise, if there is no change in the sea temperature, you should suspect（）
A. overloading in all cylinders
B. a jammed three-way thermostatic valve
C. chromate PH too low
D. a high level in the surge tank
[单项选择]After finished the engine, which of valves cannot be shut off by the duty engineer?（）
A. fuel valve
B. the starting air valve
C. the sea chest
D. the main sea pump inlet valve
[单项选择]Immediately after any diesel engine is started, the engineer should check the （）
A. crankcase pressure
B. lube oil pressure
C. saltwater pressure
D. exhaust temperature
[单项选择]After received the “finished with engine” instruction, which of the following operations is false?（）
A. shut off the starting air receiver outlet valve
B. stop the FO priming transfer pump and shut off the correspondence inlet and outlet valve
C. stop the SW pump immediately and shut off the correspondence inlet and outlet valve
D. stop the FW pump immediately and shut off the correspondence inlet and outlet valve
[单项选择]After-cooling of a turbocharged diesel engine will result in （）
A. higher torque but lower brake horsepower
B. lower torque but higher brake horsepower
C. higher torque and lower brake horsepower
D. lower torque and higher brake horsepower
