Electrician Practice Tests

The large refrigerant spills can cause breathing problems because ……….

When you use your service manifold to check the refrigeration system pressure its best to ………………….

When refrigerant R-500 is recovered from refrigeration appliance ……………..

If any technician wants to recover refrigerant during repair or maintenance of the small refrigeration appliance he must be certified as either universal technician or ………….

When adding or removing refrigerant from refrigeration appliance it must be equipped with a service aperture or any other device as per EPA. The service port typically is ……………

The small refrigeration appliance passive system dependent recovery device ……………..

In small appliance the leak …………………

For refrigerant recovery the passive recovery device is used which of the following refrigeration system?

As per EPA , the sale of CFC and HCFC refrigerants is

The refrigerant that is vented from a graduated charging cylinder …………….

In a small appliance which of the following refrigerant that can be used as a direct service “drop-in” substitute for R-12?

The recovery procedure should not be started , if the system pressure is ……….. after installing or opening a piercing access value.

The technician should ensure that the refrigerant recovery cylinder must not fill more than …………… percentage of its capacity.

A device is said to be small appliance if …………………..

The storage tanks to store recovered refrigerant are packed ……………..