A.1382 tons
B.1561 tons
C.1600 tons
D.1637 tons
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A.It is lower than the ignition temperature
B.It is the temperature at which a substance will spontaneously ignite
C.It is the temperature at which a substance, when ignited, will continue to bum
D.It is the temperature at which the released vapors will fall within the explosive range
A.bubbling refrigerant
B.overheating and oxidation
C.lowered operating temperatures
D.reducing the cloud or flash point
A.Impeller
B.Electric motor
C.Volute
D.Eye
A.carbon deposits on the compressor suction valves
B.the evaporator temperature to increase
C.rapid corrosion of the thermal expansion valve
D.no operating problems
A.increases brine density
B.increases distillate salinity
C.reduces metal corrosion
D.reduces heat transfer
最新試題
The rate of heat transfer from a hot region to a cold region is affected most by the ().
A grease gun is generally used to lubricate a ().
Thermostatic expansion valves can be adjusted for ().
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will ().
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is ().
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by ().
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should ().
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by ().
The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?()
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by ().