更多"The air filter is fixed in the （） o"的相关试题:
[单项选择]A dirty intercooler on the ship service air compressor will result in （）.
A. decreased compression ratio
B. higher than normal power consumption
C. un-loader malfunction
D. water in the lubricating oil
[单项选择]To obtain maximum efficiency, two stage air compressors are usually （）.
A. horizontally mounted
B. never fitted with intake filters
C. fitted with intercoolers
D. operated in an unloaded condition at all times
[单项选择]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
[单项选择]Air entering an air-cooled refrigeration system is indicated by （）.
A. frosting of the liquid line
B. higher than normal head pressure
C. a clear sight glass
D. abnormally cold reefer boxes
[单项选择]Compressed air is supplied by air compression to （）.
A. the air receivers
B. the starting valves
C. the cylinder covers
D. the distributors
[单项选择]Air line lubricators are used in compressed air systems to lubricate （）.
A. the suction and discharge valves
B. tools and equipment served by compressed air
C. air line reducing valves
D. all of the above
[单项选择]Air conditioning is the process of treating air to control （） its temperature, humidity, cleanliness and distribution to meet the comfort requirements of the occupants of the conditioned space.
A. instantaneous
B. instantaneously
C. simultaneous
D. simultaneously
[单项选择]In reference to air conditioning, when air attains the maximum amount of moisture it can hold at a specific temperature, it is said to be （）.
A. superheated
B. saturated
C. condensed
D. convected
[单项选择]The quantity of cooled air delivered by an air conditioning unit should （） the sum of the quantity of air re-circulated to the unit and the quantity mechanically exhausted.
A. balance
B. not balance
C. be more than
D. be less than
[单项选择]The air compressor pumps air to the （）.
A. air cylinder
B. combustion chamber
C. steam drum
D. expansion tank
[单项选择]The fresh air coming in through the inner air ports, is compressed by（） to a higher pressure.
A. the cylinder head
B. the cross-head
C. the moving piston
D. the stationary piston
[单项选择]As the air passes through the charge air cooler, its temperature may be reduced and moisture condensed, with the condensate in danger of being carried into the engineSo a water separator should be mounted beneath the bottom part of the engine inlet manifoldA water separator is used in order to （）.
A. keep the air from being carried into the engine
B. keep the moisture from being condensed
C. keep the danger from being carded into the engine
D. take away the condensate from the air
[单项选择]The compressed air is supplied by （） to the air reservoirs.
A. compressors
B. forced fans
C. ventilators
D. generators
[单项选择]The remote control for a fixed fire extinguishing system should be（）.
A. painted red and labeled
B. concealed from the crew
C. protected by plexiglass
D. padlocked
[单项选择]The output volume of a positive fixed displacement pump can be changed only by （）.
A. changing the angle of the tilting plate
B. changing the speed of the pump
C. moving the slide block and rotor
D. moving the shaft trunnion block
