If an air compressor is used to supply air primarily to the combustion control system and
A.control air system
B.forced draft air system
C.supply air system
D.ships service air system
A.control air system
B.forced draft air system
C.supply air system
D.ships service air system
第1题
A.Fan air
B.HP compressor 5th stage air
C.HP compressor 4th and 9th stage air
第2题
Air compressor cylinder un-loaders enable the compressor to _____.
A.vary their speed according to temperature and load
B.start and come up to speed before air compression begins
C.change speed according to overload demands
D.reduce compressed air charge density
第3题
The air compressor pumps air to the ______.
A.expansion tank
B.combustion chamber
C.air receiver
D.evaporator
第4题
The unloading system on an air compressor will _____.
A.increase compressor discharge pressure on demand
B.increase compressor operating speed as necessary
C.allow the motor to turn the compressor opposed only by friction
D.reduce the compressor frictional load when starting
第5题
Compressed air is supplied by air compressor to ()
A.the air receivers
B.the starting valves
C.the cylinder covers
第6题
Air blowing from the intake air filter of an operating air compressor indicates ______.
A.broken inlet valves
B.broken discharge valves
C.pulsations in the air distribution system
D.overloading of the air distribution system
第7题
A.receiver
B.evaporator
C.condenser
D.compressor
第8题
The air compressor pumps air to the_____
A.engine cylinder
B.air bottle
C.evaporator
D.condenser
第9题
____ are supplied by main switchboard directly.
A.Suez Canal searchlight, air compressor and air conditioning compressor
B.Air compressor, boiler blower and refrigeration plant
C.Boiler blower, Suez Canal searchlight and refrigeration plant
D.Suez canal searchlight, air compressor and boiler blower
第10题
Broken valve strips in an operating low pressure, air compressor will cause _____.
A.an immediate crankcase explosion
B.oil contamination in the compressed air
C.a decrease in compressor capacity
D.no immediate loss of the compressed air capacity
第11题
The air compressor pumps air to the ______.
A.air cylinder
B.combustion chamber
C.steam drum
D.expansion tank
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