Another term used when referring to a “primary refrigerant” is a direct (a)   refrigerant.

Being easily detectable when leak testing, having a low boiling point and a low compression ratio are all (a)   properties of a good refrigerant.

Refrigerants are classified according to their (a)   content and composition.

The number, colour code, chemical name and chemical formula are usually placed on refrigerant cylinders to (a)   them.

Refrigerants are given (a)   numbers, which are used to assist in the identification process.

Refrigerant cylinders must never be stored in an area with a temperature (a)   52°C.

(a)   cylinders are easily recognised by their yellow shoulders and grey body.

The only type of storage cylinder which is not made of steel is the (a)   one.

What does the abbreviation O.D.P. stand for with relation to the preservation of the atmosphere?

(a)  

The 700-series of numbers is assigned to refrigerants which are classified under the (a)   category.

A (a)   refrigerant is one that engages in heat transfer with the load and then is returned to the main refrigerant to repeat the cycle.

Refrigerants are referred to as the (a)   of an operational system because they transport heat from one location to another.