When a 6 or 12 lead delta connected motors are started star connected, approximately ______ of the full line voltage is applied to each winding.

The permanent split capacitor motor is designed to have a _____ starting torque and _____ running torque

Motor winding relay is an electromagnetic device for ________ the motor electrical circuit connected in series to the motor starting winding

_______ is the motor can be allowed to develop more than its rated or nameplate hp without causing undue deterioration of the insulation

For converting the gauge pressure to absolute, which of the following should be added to the pressure reading from a manifold gauge set:

Which of the following method is used to pin point the leak detection:

Asphyxiating atmosphere refers to which of the following:

What will happen when hermetic refrigeration compressor is energized and the system is under deep vacuum:

Which of the following is a chamber for distributing air in an HVAC system:

The maximum temperature at which the refrigerant may be stored is ____°F 

When the heat load on the evaporator decreases, then suction pressure will _____ and discharge pressure will _______:

Which of the following motor used in HVAC applications will have low starting torque:

Human comfort can be enhanced without changing the temperature of the air by ______ during summer season:

The latent heat of fusion is the amount of energy required to change 1 lb of a substance from the ________ phase to the _________ phase without changing its temperature:

If gauge pressure measured reads 50 psi, what will be the corresponding absolute pressure:

Generally Gas burners are classified according to the ______ available at the gas inlet valve