余热 residual heat
余热 residual heat
相关考题：
All of the following below are needed for the calculation of depreciation except( ) A. costB. residual valueC. estimated lifeD. book value
For what purpose are the diving pipes used?A. To absorb heat from the sun.B. To store heat for future use.C. To turn solar energy into heat energy.D. To carry heat down below the surface.
The heat identified by only a change in temperature is known asA.sensible heatB.latent heatC.total heatD.residual heat
According to the passage, which of the following statement is not true?A.the heat exchanging surfaces should be kept substantially cleanB.the heat exchanger flow passages should be clear of obstructionC.seals for the plate heat exchanger needs to be renewed oftenD.the cleaning process of the plate heat exchanger should be done following our experiences only
The heat gained per pound of refrigerant in the evaporator is known as the ______.A.latent heat of vaporizationB.sensible heatC.refrigerating effectD.specific heat of vaporization
we will try our best to solve the residual problems.A:geographical B:complexC:domestic D:remaining
They tried their best to resolve the residual problems.A:domesticB:remainingC:geographicalD:elaborate
During the photoconductor preparation step， residual charge can be removed by which of the following？（）A、PressureB、OilC、LightD、GravityE、Electrical Charge
余热资源计算的温度基准是（），蒸汽冷凝水环境温度。A、气体余热200℃，温水40℃，固体余热400℃B、气体余热150℃，温水50℃，固体余热400℃C、气体余热200℃，温水60℃，固体余热500℃
单选题The heat removed from the refrigerant in the condenser of a refrigeration plant is the （）Alatent heat of expansionBsensible heat of condensationCheat of compressionDall of the above
单选题The rate of heat transfer from a hot region to a cold region is affected most by the （）.Asize of the heat sinkBtemperature difference between the regionsCsize of the heat sourceDtotal heat of the system
单选题Which of the following statements is correct concerning heat transfer?（）AHeat is given off from a high temperature region known as a heat sinkBHeat transfer rate is affected most by the size of the heat sink involvedCHeat transfer rate is affected most by the temperature difference between the heat source and the heat sinkDHeat transfer by radiation will occur only by mass motion of a fluid substance
单选题The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.Aremain constant along the tubes lengthBbe greatest in a single pass counter flow heat exchangerCremain constant throughout the heat exchangerDvary from section to section through out the heat exchanger
单选题The reason why the laser beam is very strong is that ______.Ait is artificially illuminatedBit is made up of a concentrated beam of lightCit sends out heat in all directionsDits heat is increased by the heat of the sun
单选题Exhaust valve grooving and corrosion is caused by certain components of residual fuel oilThese components are sodium, sulfur, and （）.AvanadiumBcarbonCcopperDash
单选题Which of the following is true of the heating system of the Johnstown campus?AThe heat is supplied by human bodies only.BThe heat is supplied by both human bodies and other heat-emitting objects.CThe heat is supplied by both human bodies and conventional fuel.DThe heat is supplied by human bodies, other heat-emitting objects, and conventional fuel.
单选题The heat used to change a liquid to a vapor is called （）.Alatent heat of fusionBlatent heat of vaporizationCspecific heat of vaporizationDlatent heat of the gas
单选题The amount of heat released by steam when it changes to water at the same temperature is called（）.Alatent heat of condensationBlatent heat of vaporizationClatent heat of saturationDsensible heat of condensation
多选题During the photoconductor preparation step， residual charge can be removed by which of the following？（）APressureBOilCLightDGravityEElectrical Charge
单选题Sacrificial zinc anodes are used on the saltwater side of diesel engine heat exchangers to（）.Areduce electrolytic action on heat exchanger metalsBkeep heat transfer surfaces shiny and cleanCprevent rapid accumulation of marine growthDprovide a protective coating on heat exchanger surfaces