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余热 residual heat
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更多 “余热 residual heat” 相关考题
考题
All of the following below are needed for the calculation of depreciation except( )
A. costB. residual valueC. estimated lifeD. book value
考题
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.
考题
The heat identified by only a change in temperature is known asA.sensible heatB.latent heatC.total heatD.residual heat
考题
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
考题
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
考题
we will try our best to solve the residual problems.A:geographical
B:complex
C:domestic
D:remaining
考题
They tried their best to resolve the residual problems.A:domestic
B:remaining
C:geographical
D:elaborate
考题
During the photoconductor preparation step， residual charge can be removed by which of the following？（）A、PressureB、OilC、LightD、GravityE、Electrical Charge
考题
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℃
考题
单选题The heat removed from the refrigerant in the condenser of a refrigeration plant is the （）A
latent heat of expansionB
sensible heat of condensationC
heat of compressionD
all of the above
考题
单选题The rate of heat transfer from a hot region to a cold region is affected most by the （）.A
size of the heat sinkB
temperature difference between the regionsC
size of the heat sourceD
total heat of the system
考题
单选题Which of the following statements is correct concerning heat transfer?（）A
Heat is given off from a high temperature region known as a heat sinkB
Heat transfer rate is affected most by the size of the heat sink involvedC
Heat transfer rate is affected most by the temperature difference between the heat source and the heat sinkD
Heat transfer by radiation will occur only by mass motion of a fluid substance
考题
单选题The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.A
remain constant along the tubes lengthB
be greatest in a single pass counter flow heat exchangerC
remain constant throughout the heat exchangerD
vary from section to section through out the heat exchanger
考题
单选题The reason why the laser beam is very strong is that ______.A
it is artificially illuminatedB
it is made up of a concentrated beam of lightC
it sends out heat in all directionsD
its heat is increased by the heat of the sun
考题
单选题Exhaust valve grooving and corrosion is caused by certain components of residual fuel oilThese components are sodium, sulfur, and （）.A
vanadiumB
carbonC
copperD
ash
考题
单选题Which of the following is true of the heating system of the Johnstown campus?A
The heat is supplied by human bodies only.B
The heat is supplied by both human bodies and other heat-emitting objects.C
The heat is supplied by both human bodies and conventional fuel.D
The heat is supplied by human bodies, other heat-emitting objects, and conventional fuel.
考题
单选题The heat used to change a liquid to a vapor is called （）.A
latent heat of fusionB
latent heat of vaporizationC
specific heat of vaporizationD
latent heat of the gas
考题
单选题The amount of heat released by steam when it changes to water at the same temperature is called（）.A
latent heat of condensationB
latent heat of vaporizationC
latent heat of saturationD
sensible heat of condensation
考题
多选题During the photoconductor preparation step， residual charge can be removed by which of the following？（）APressureBOilCLightDGravityEElectrical Charge
考题
单选题Sacrificial zinc anodes are used on the saltwater side of diesel engine heat exchangers to（）.A
reduce electrolytic action on heat exchanger metalsB
keep heat transfer surfaces shiny and cleanC
prevent rapid accumulation of marine growthD
provide a protective coating on heat exchanger surfaces
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