更多"An emergency diesel generator shoul"的相关试题:
[单项选择]A diesel driven emergency generator is prevented from being paralleled with the ships service generators by （）
A. an electrical interlock system
B. an automatic paralleling trip switch
C. the synchronizing oscilloscope
D. the reverse current relay
[单项选择]Standby or emergency diesel generator day tanks should always be kept full to reduce the possibility of（）
A. sediment contamination
B. fuel filter clogging
C. moisture formation
D. inadequate transfer pump suction head
[单项选择]The emergency generator or emergency battery is connected to（） on most large ships.
A. distribution boards
B. section boards
C. emergency switch boards
D. main switch boards
[单项选择]Each emergency generator on a mobile offshore drilling unit，when tested，must be run under a full load for at least（）.
A. one hour
B. two hours
C. ten hours
D. four hours
[单项选择]Emergency generator is installed on board mainly to （）
A. connect to the busbar when the load increasing
B. supply power specially to charging panel
C. be put into operation during the ship arriving at or leaving port
D. ensure the power supply to critical equipment after the main switchboard out of power
[单项选择]An emergency generator, driven by an internal combustion engine, shall be tested under load for a minimum of 2 hours at least once every （）
A. week
B. 2 weeks
C. month
D. 3 months
[单项选择]On a ship，each emergency generator must be tested at least once each（）.
A. week
B. month
C. three months
D. six months
[单项选择]It （） for an emergency generator to require paralleling.
A. is usual
B. is not usual
C. is necessary
D. is not impossible
[单项选择]
The ship emergency plan item should not include （）
Ⅰ.ifesaving,fire fighting, leakage blocking, abandon ship
Ⅱ.irst aid
Ⅲ.ntegration emergency
A. Ⅱ
B. Ⅲ
C. Ⅰ+Ⅲ
D. Ⅰ
[单项选择]Which emergency equipment should you keep near the towing bitts（）.
A. A self-contained breathing apparatus
B. A boat hook and a spanner wrench
C. A fire ax and/or cutting torch
D. A Stokes litter basket
[单项选择]Routine monitoring of a diesel engine should include （）.
A. checking for leaks
B. checking temperatures and pressures
C. listening for abnormal noises
D. all of the above
[单项选择]An automated diesel engine should normally shut down due to （）
A. low lube oil temperature
B. high ambient air temperature
C. low tube oil pressure
D. high exhaust system back pressure
[单项选择]Why the cooling water of the diesel engine should be treated? Because the（）
A. Cooling water is alkalescence
B. cooling water is acidity
C. cooling water has salinity
D. cooling water has impurity
[单项选择]Burning diesel oil should be treated as which class of fire?（）
A. Class "A"
B. Class "B"
C. Class "C"
D. Class "D"
[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]Before being shut down, a diesel engine should idle a few minutes in orderto （）
A. prevent governor surging at shutdown
B. make sure the fuel nozzles are flushed clean
C. prevent pressure buildup in the fuel lines
D. prevent damage from localized overheating
[单项选择]The cooling water of the diesel engine should be treated, because it has（）
A. alkale scence
B. acidity
C. salinity
D. impurity
[单项选择]A diesel generator has just been paralleled with an AC turbo-generator, but the load can not be properly divided.This could be caused by（）
A. an incorrect diesel generator governor speed droop adjustment
B. a faulty reverse power relay within the main circuit breaker assembly
C. unsynchronized isochronous load distribution adjustments
D. a different speed setting on each unit
