A.capacity will increase
B.capacity will decrease
C.suction pressure will increase
D.suction pressure will decrease
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A.hydraulic
B.electric
C.steam
D.diesel
A.increase the amount of cooling water to the condenser
B.decrease the amount of cooling water to the condenser
C.add more refrigerant to the system
D.remove some refrigerant from the system
A.Heat is given off from a high temperature region known as a heat sink
B.Heat transfer rate is affected most by the size of the heat sink involved
C.Heat transfer rate is affected most by the temperature difference between the heat source and the heat sink
D.Heat transfer by radiation will occur only by mass motion of a fluid substance
A.Maritime Safety Administration
B.Master of the vessel
C.Chief Engineer
D.Chief Mate
A.size of the heat sink
B.temperature difference between the regions
C.size of the heat source
D.total heat of the system
最新試題
Low compressor head pressure in a refrigeration system can be caused by（）.
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
The output volume of a positive fixed displacement pump can be changed only by （）.
A salinity indicator is used to determine the （）.
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
Which of the following statements is correct concerning heat transfer?（）
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.
When the steering gear is in operation, you should （）.
Which of the listed pumps is NOT a positive displacement pump?（）