单选题Compressed air is supplied by air compression to （）.Athe air receiversBthe starting valvesCthe cylinder coversDthe distributors
单选题
Compressed air is supplied by air compression to （）.
A
the air receivers
B
the starting valves
C
the cylinder covers
D
the distributors
参考解析
解析：
暂无解析
相关考题：
If the engine does not start on air, it may be due toA.low compression of the fuel pumpsB.incorrect timing of fuel pumpsC.the starting air valves stuckD.air-locks in fuel oil pipeline
Restrictions occurring in the small orifices(孔) of pneumatic control system components can be caused by ______.A.moisture in the compressed air supplyB.excessive dryness in the compressed air supplyC.pressure surging in the compressed air receiverD.insufficient lubrication of the system components
Compressed air is supplied by air compressors to______.A.the air receiversB.the starting valvesC.the cylinder coversD.the distributors
What is the function of an air receiver in the compressed air system on a ship?A.Condenses moistureB.Provides overpressure protectionC.Purifies the airD.Acts as an accumulator
单选题The fresh air coming in through the inner air ports, is compressed by（） to a higher pressure.Athe cylinder headBthe cross-headCthe moving pistonDthe stationary piston
单选题Which of the following statements describes the function of an air compressor intake filter?（）AProtects against suction valve floatBProvides a positive pressure on the air inlet valvesCPrevents lubricating oil contamination of the compressed air supplyDProtects against the damaging effects of airborne solid particles
单选题The air supplied to a diesel engine is compressed to （） (1) provide heat for the ignition of the fuel (2) decrease injection delayA(1) only is correctB(2) only is correctCboth (1) and (2) are correctDneither (1) or (2) are correct
单选题What is the function of an air receiver in the compressed air system on a ship? （）ACondenses moistureBProvides overpressure protectionCPurifies the airDActs as an accumulator
单选题Clean air standards referred to as “Grade D” apply to compressed air for use in（）.Ahigh pressure fluid accumulatorsBdriving air-powered plunger pumpsCfilling open-circuit breathing systemsDbladder-type accumulators
单选题Poor combustion in a diesel engine can be caused by （）.Ahigh compression pressureBlow intake air temperatureClow exhaust pressureDhigh scavenge air temperature
单选题Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?（）AHolding the valve open for a long periodBIncreasing the starting air pressure usedCOpening the stating air valve quicklyDReducing the starting air valve size
单选题Restrictions occurring in the small orifices of pneumatic control system components can be used by （）Amoisture in the compressed air supplyBexcessive dryness in the compressed air supplyCpressure surging in the compressed air receiverDinsufficient lubrication of the system components
单选题Air line lubricators are used in compressed air systems to lubricate （）.Athe suction and discharge valvesBtools and equipment served by compressed airCair line reducing valvesDall of the above
单选题（）are supplied by main switchboard directly.ASuez Canal searchlight, air compressor and air conditioning compressorBAir compressor, boiler blower and refrigeration plantCBoiler blower, Suez Canal searchlight and refrigeration plantDSuez canal searchlight, air compressor and boiler blower
单选题The engine will fail to start unless （）.Athe pressure of the starting air is high enoughBthere is enough air in the air reservoirsCthe air is supplied into the cylinders in the appropriate sequenceDall of the above
单选题Broken valve strips in an operating low pressure, air compressor will cause （）.Aan immediate crankcase explosionBoil contamination in the compressed airCa decrease in compressor capacityDno immediate loss of the compressed air capacity
单选题Diesel engine air start system check valves are opened by （）Aan air start camBcylinder compression pressureCstarting air pressureDvalve springs
单选题Cooling the intake air supplied to a diesel engine will （）.Areduce mean effective pressureBdecrease average compression pressureCdecrease air charge densityDincrease power output
单选题Increased air （） will raise scavenge efficiency and allow a greater mass of air to be compressed； more fuel may now be burned giving an increased power.Aspecific volumeBdensityCviscosityDcalorific value
单选题The compressed air is supplied by （） to the air reservoirs.AcompressorsBforced fansCventilatorsDgenerators
单选题The primary task of the compressed air system is to deliver the starting air necessary for （）Astarting the MEBstarting the emergency electric alternatorCdriving the main turbineDdriving the turbocharger
单选题If an air compressor is used to supply compressed air to outlets throughout the engine room and on deck of a vessel, the system is known as the （）.Acombustion control air systemBsupply air systemCships service air systemDlow pressure deck air system
单选题Compressed air is used on board ship for all the following purposes except （）.Astarting diesel enginesBpneumatic control systemsCpneumatic toolsDsupercharging air
单选题Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）AReduce engine speed to idle before removing the filterBSoak the dirty filter in kerosene onlyCBlow out the air inlet with compressed airDCover the air inlet after removing the filter
单选题Which of the listed precautions should be taken when cleaning the internals of a motor with compressed air?（）AOpen the machine on both ends so as to allow the air and dust to escapeBBe certain that the circuit breaker is opened and tagged on the feeder panelCBe certain that the air is clean and as dry as possibleDAll of the above
单选题Air compressor cylinder un-loaders enable the compressor to （）.Avary their speed according to temperature and loadBstart and come up to speed before air compression beginsCchange speed according to overload demandsDreduce compressed air charge density
单选题In the suction stroke air is induced into the cylinder （）In the compression stroke the air is compressed.Aby an fuel valveBthrough an inlet valveCwith an exhaust valveDfrom an outlet valve