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船舶辅助机械
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船舶辅助机械
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1
An internal bypass is provided on some hyd
2
A grease gun is generally used to lubricat
3
Thermostatic expansion valves can be adjus
4
The amount of fluid friction or internal f
5
The major source of chemical contaminants
6
If the thermal bulb of an expansion valve
7
Which of the listed pumps is NOT a positiv
8
Heavy wear in a particular area of the inn
9
A pressure drop through the refrigerant li
10
Low compressor head pressure in a refriger
Which of the problems listed would came th
The usual symptoms of cavitation in a cent
One cause of high head pressure occurring
The control mode in which the final contro
Pitting in the suction areas of a centrifu
If the head pressure of a reciprocating re
A salinity indicator is used to determine
An increasing head pressure in a refrigera
Which of the following problems could caus
The general purpose of a heat exchanger is
The temperature differential occurring bet
The rate of heat transfer between the hot
If the relief valve on the discharge side
A salinity indicator is used to determine
If the suction pressure at the refrigerati
If the viscosity of the liquid being trans
On tank vessels equipped with power operat
When a refrigeration compressor has develo
Which of the following statements is corre
Who is responsible for ensuring that someo
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