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 （）.

The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.

The general purpose of a heat exchanger is to （）.

An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.

A pressure drop through the refrigerant liquid line may cause （）.

The rate of heat transfer from a hot region to a cold region is affected most by the （）.

A salinity indicator is used to determine the （）.

Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.

The output volume of a positive fixed displacement pump can be changed only by （）.