One horsepower is equivalent to _______ watts:

An oil separator removes upto  ________ of the oil that circulates in a refrigeration system:

The evaporator changes a low pressure / temperature ______ to low pressure / temperature ______

The oil separator is located on the discharge line close to the _______ with most refrigerants:

A diode allows current to flow in one direction:

One watt = _______ Btu

When measured by an ohmmeter if the resistance of the contactor coil is shown zero then the coil is:

When a capacitor is used in the circuit, power factor of the circuit will be _______ :

In case of the air is trapped in the air conditioning system, it will stay in which of the following component:

For carrying out the leak test in the pressurized system, which of the following is used:

Discharge Service Valve is located at the ______ :

The external equalizer is connected to which of the following:

The closed type condensers are not internally driven by the motor:

Which of the following has the main function to prevent liquid floodback to the compressor:

An oil trap is required at the base of the discharge line of the vertical riser is _____ or above

Which of the following is not the product of incomplete combustion:

In water-tube boilers, the _____ is contained in tubes located inside a furnace and _______ pass over the tubes: