If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.

If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.

Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）

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

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

A gradual decrease in the discharge pressure of an operating hydraulic pump can be 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 （）.

An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.

On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.

When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should （）.