Electrician Practice Tests

System dependent devices may be used for the appliances containing …………. of refrigerant.

A system dependent recovery machine for small appliances requires the assistance of the following to complete the process.

On daily basis all the recovery machines should be checked for ………………

The presence of non condensables in recovery tank causes

Self contained recovery equipment stores the recovered refrigerant in ………………….

………………….must be known before recovering the refrigerant from the system.

To minimize the refrigerant loss during connection and disconnection of hoses all equipment must be fitted with …………..

What is the vacuum level that a recovery equipment must achieve under the conditions of ARI 740?

Recovery equipment must be able to remove …………….. of refrigerant from a system with  non operating compressor.

The persons handling, doing maintenance, service or repair of small appliances must be certified as ……………