The expansion device used in domestic refrigerator is

The major parts of a domestic refrigerator are

Ohm’s law is related to

Voltmeter is used for measuring the

P-H chart means

_______is that branch of engineering science, which deals with the study of air.

The evaporator in a refrigeration system is also known as

The types of Copper tubing used in air conditioning and Refrigeration are

OLP stands for

Full form of EMF