Electrician Practice Tests

Which of the following layer of earth atmosphere that surrounds us?

The blended refrigerant charged in a system may leak from a system ……..

Which refrigerant is a CFC?

If the technician failed to demonstrate proper recovery and reclaiming procedures when EPA requires Then ……..

Which of the following is usually central port of the manifold gauge?

Heat flows from  a material at ………………….. to material at ………………..

Which of the following refrigeration circuit components does not modify the pressure of the refrigerant?

What is the purity standard that the reclaimed refrigerant should meet to be resold or reused in any other system?

Only ……………. technicians can buy CFC 12 refrigerant in containers smaller than 20 pounds.

Recovery device which takes the assistance of appliance compressor in refrigerant recovery is considered as ………..

What is the preferred detector for detecting the small refrigerant leaks?

The speed of the refrigerant recovery depends on …………..

What should be followed with a gauge set hose to be used in evacuating a system?

The EPA requires that the recovery cylinders must be filled above …………….. of its capacity

The pressurized nitrogen should always charged through a …………………… into the system.