Electrician Practice Tests

The centrifugal compressors should be charged through ………………..

When a low pressure refrigerant system is opened for service ………………… should be replaced compulsory.

What should be the minimum capacity of R-410A refrigerant recovery tanks?

If the refrigeration contains large amount of moisture, to prevent freezing of moisture during evacuation the system pressure can be increased with …………. Gas

If the pressure in the refrigeration circuit is lowered then it causes the refrigerant …………….

Which refrigerant you must recover first from the refrigeration system?

In maximum how many days the discovered leak should be repaired as per EPA?

In commercial and industrial refrigeration systems, if the leak percentage increases more than ………….. of the charge per year must be removed.

The leaks in a refrigeration system contains ……………. refrigerant need not be repaired as per EPA.

What is the rupture disk relief pressure in the low pressure refrigeration system?