更多"Low compression pressure in a diese"的相关试题:
[单项选择]Low compression pressure in a diesel engine may be the result of （）
A. insufficient fuel supply due to fuel pump valves sticking or leaking
B. excessive mechanical clearance between the piston crown and cylinder head
C. excessively worn fuel pump plunger
D. excessive exhaust back pressure
[单项选择]Low compression pressure in a diesel engine is caused by（）
A. low water in the expansion tank
B. improperly seated valves
C. low fuel oil pressure
D. worn or broken cylinder liner sealing rings
[单项选择]When a diesel engine compression pressure is checked, the indicator is connected to the （）
A. cylinder exhaust ports
B. injection line
C. cylinder indicator cock
D. banjo oiler line
[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]Low compression in a diesel engine can be caused by （）
A. clogged coolant passages
B. a leaking cylinder head gasket
C. low fuel oil pressure
D. worn or broken cylinder liner sealing rings
[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]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
[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]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 cylinder compression pressure and a high exhaust temperature may indicate （）
A. early fuel injection timing
B. leaking valves
C. a continuously open scavenge air port
D. low cooling water temperature
[单项选择]Late fuel oil injection in a diesel engine can result in （）
A. fuel knock
B. increased power
C. low compression pressure
D. high exhaust temperature
[单项选择]Poor combustion in a diesel engine can be caused by （）.
A. high compression pressure
B. low intake air temperature
C. low exhaust pressure
D. high scavenge air temperature
[单项选择]A dark exhaust from a running diesel engine can be caused by （）
A. late ignition
B. water in the fuel
C. high compression temperature
D. starting valve stuck open
[单项选择]Worn main bearings in a diesel engine can result in （）
A. decreased compression pressure
B. increased lube oil pressure
C. lower lube oil temperature
D. excessive leakage past the piston rings
