更多"The auxiliary engine and a cgenerat"的相关试题:
[单项选择]Auxiliary diesel engines can be automatically shut down as a result of （）
A. low lube oil temperature
B. low lube oil pressure
C. high exhaust temperature
D. high cooling water pressure
[单项选择]If an auxiliary diesel engine temperature is higher than normal ,but the thermostat is determined not to be defective you would suspect a /an （）
A. cavitation erosion in the water jackets
B. excess corrosion inhibitor in the coolant
C. dirty jacket water cooler
D. defective turbocharger
[单项选择]Excessive valve lash in an auxiliary diesel engine will cause the valves to open（）
A. later and close sooner
B. sooner and close later
C. sooner and close sooner
D. later and close later
[单项选择]If an auxiliary diesel engine frequently stalls, the trouble may be caused by （）
A. low exhaust back pressure
B. air in the fuel system
C. gasket blow-by or leakage
D. incorrect assembly of idler springs
[单项选择]An auxiliary diesel engine may fail to start due to（）
A. low exhaust back pressure
B. high lube oil temperature
C. insufficient cranking speed
D. excessive fuel atomization
[单项选择]In an auxiliary diesel engine, the reason for knurling the piston skirt is to（）
A. improve skirt lubrication
B. allow for expansion
C. transmit forces evenly
D. improve the piston seal
[单项选择]Diesel engine control can be obtained by the bridge （）.
A. at any time
B. only after the engine room control station is switched to “bridge control”
C. whenever the secondary station is switched to "bridge control"
D. with the approval of the chief engineer only
[单项选择]Main diesel engine control can be obtained by the bridge （）
A. at any time
B. only after the engine room control station is switched to ‘bridge control’
C. whenever the secondary station is switched to ‘bridge control’
D. whenever the engine side control station is switched to ‘bridge control’
[单项选择]One cause of diesel engine surging can be a result of （）
A. injection pump plungers stuck or worn
B. low compression
C. solenoid stuck open
D. fuel tank too full
[单项选择]（） of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.
A. Misalignment
B. Length
C. Strength
D. Stresses
[单项选择]Auxiliary boilers can be classified as（）
A. water-tube natural circulation boilers
B. fire-tube boilers
C. water-tube forced circulation boilers
D. all of the above
[单项选择]Combustion knock occurring in a diesel engine can be caused by （）
A. low coolant temperature
B. insufficient fuel
C. high ambient temperature
D. carbon buildup on the injector tips
[单项选择]Performance of a turbocharged engine can be improved by（）
A. decreasing the amount of valve overlap
B. preheating the air intake
C. after-cooling the intake air
D. preheating light fuel
[单项选择]White smoke exhausting from a diesel engine can result from （）
A. high exhaust temperature
B. high lube oil temperature
C. low turbo-charger speed
D. low cooling water temperature
[单项选择]Low compression pressure in a diesel engine can be caused by（）
A. improperly seating intake valves
B. leaking cylinder liner seal rings
C. late fuel injection timing
D. carbon deposits on the piston
[单项选择]White smoke exhausting from a diesel engine can be caused by （）
A. low combustion temperature
B. a leaking fuel nozzle check valve
C. late fuel injection
D. plugged oil-scraper ring hole
[单项选择]Diesel engine lube oil can become contaminated as a result（）
A. the water produced during combustion
B. the sulfur in the fuel
C. unburned fuel oil
D. all of the above
