A.Water Head Register
B.Water Heater Re-circulating
C.Waste Heat Recovery
D.Waste Handle Reference
您可能感興趣的試卷
你可能感興趣的試題
A.yellowish flame
B.golden yellow flame
C.milky flame
D.brilliant white flame
As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: （）
(1) secure oil to fires
(2) increase feed pump pressure
A.（1）
B.（1）and（2）
C.（2）
D.neither（1）nor（2）
A.latent heat of condensation
B.latent heat of vaporization
C.latent heat of saturation
D.sensible heat of condensation
A.physical state
B.temperature
C.atmospheric pressure
D.sensible pressure
A.The blow down valve
B.The scum valve
C.The air release cock
D.The soot-blower
最新試題
The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
The major source of chemical contaminants in hydraulic fluid is （）.
Low compressor head pressure in a refrigeration system can be caused by（）.
The output volume of a positive fixed displacement pump can be changed only by （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
Which of the following statements is correct concerning heat transfer?（）
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.