单选题With supercharging a larger mass of air is supplied to the cylinder by blowing it in under pressure, which is the best means to （） of the engine.Aincrease the exhaust temperatureBincrease the power ofCreduce the speedDincrease the fuel consumption
单选题
With supercharging a larger mass of air is supplied to the cylinder by blowing it in under pressure, which is the best means to （） of the engine.
A
increase the exhaust temperature
B
increase the power of
C
reduce the speed
D
increase the fuel consumption
参考解析
解析：
暂无解析
相关考题：
Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.A.pressure changes in the air massB.movement of the air massC.the heterogeneous nature of the air massD.upper level atmospheric changes
A source of an air mass labeled mTw is ______.A.the equatorB.the Gulf of MexicoC.AlaskaD.Canada
A frontal thunderstorm is caused by ______.A.pronounced local heatingB.wind being pushed up a mountainC.a warm air mass rising over a cold air massD.an increased lapse rate caused by advection of warm surface air
A warm air mass is characterized by______．A.stabilityB.instabilityC.gusty windsD.good visibility
A cool mass of air heads toward the United States from the upper regions of Canada and Alaska this week according to the National Weather Service.According to the NWS a mass of cold air will drop from the Arctic regions to Canada and then the upper Midwest next week.Temperatures across the Midwest will drop into the 60s and 70s-a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. And the relatively cooler air may be felt as far East as New York and WashingtonThe cool breezes may be a welcome relief this time around but remember the last few times we got hit with Arctic air？Temperatures in cities including Chicago Cleveland New York and Louisville fell into single-digit and negative territory for long stretches during the harsh winter months of early 2014. But we’re sure you rememberAccording to the National Weather Service____A. the cool mass of air originates from CanadaB. a mass of cold air will affect both Canada and the U.SC. the chilly weather is back to the globeD. only the upper Midwest will be affected by the cool air
Some of the larger birds can remain stationary in the air for several minutes.A:silentB:seatedC:trueD:motionless
资料：We never thought we'd say this, but we'd welcome back some chilly weather.A cool mass of air heads toward the United States from the upper regions of Canada and Alaska this week, according to the National Weather Service.According to the NWS, a mass of cold air will drop from the Arctic regions to Canada and then the upper Midwest next week.Temperatures across the Midwest will drop into the 60s and 70s—a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. And the relatively cooler air may be felt as far East as New York and Washington.The cool breezes may be a welcome relief this time around, but remember the last few times we got hit with Arctic air?Temperatures in cities including Chicago, Cleveland, New York, and Louisville fell into single-digit and negative territory for long stretches during the harsh winter months of early 2014. But we're sure you remember.According to the National Weather Service, ___.A.the cool mass of air originates from CanadaB.a mass of cold air will affect both Canada and the U.S.C.the chilly weather is back to the globeD.only the upper Midwest will be affected by the cool air
Some of the larger birds can remain stationary in the air for several minutes.A:silent B:motionless C:seated D:true
单选题When crossing a front,isobars tend to（）.Achange from smooth curves within the air mass to sharp bends at the frontBchange from sharp bends within the air mass to smooth curves at the frontCpass smoothly across the front with no changeDbecome closer together at the front and pass through in straight lines
单选题Temperature and moisture characteristics are modified in a warm or cold air mass due to （）.Apressure changes in the air massBmovement of the air massCthe heterogeneous nature of the air massDupper level atmospheric changes
单选题Modem engines make use of exhaust gas driven turbo-chargers to supply pressurized fresh air for （） and supercharging.AscavengingBstartingCcoolingDblowing
单选题The air supplied to the cylinders by a turbocharger is often reduced in volume by a/an （）Aair compressorBdiffuserCafter-coolerDventilator
单选题A frontal thunderstorm is caused by（）.Apronounced local heatingBwind being pushed up a mountainCa warm air mass rising over a cold air massDan increased lapse rate caused by advection of warm surface air
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Compressed air is supplied by air compression to （）.Athe air receiversBthe starting valvesCthe cylinder coversDthe distributors
单选题The compressed air is supplied by （） to the air reservoirs.AcompressorsBforced fansCventilatorsDgenerators
单选题As the temperature of an air mass decreases，the（）.Aabsolute humidity decreasesBrelative humidity increasesCspecific humidity decreasesDdew point rises
单选题Steam smoke will occur when（）.Aextremely cold air from shore passes over warmer waterBwarm dry air from shore passes over cooler waterCcold ocean water evaporates into warm airDcool rain passes through a warm air mass
单选题As the temperature for a given mass of air increases，the（）.Adew point increasesBdew point decreasesCrelative humidity increasesDrelative humidity decreases
单选题The engine is started with （） supplied from air receivers.Apressure oilBpressure waterCcompressed airDcooling water
单选题When the load is increased on a turbocharged diesel engine, the amount of increased air supplied by the turbocharger will（）Alag behind the increased fuel supplied to the engineBenter the engine along with the increase in the fuelCenter the engine before the increased fuel supplyDleave the turbocharger as a negative pulse
单选题Modern engines （） exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.Aare made ofBare made fromCmake use ofDare used to
单选题Modem engines （） exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.Amake use ofBhave made the use ofCby means ofDmake advantage of