Rotating magnetic field is produced in which of the following motor:

The thermal overload wire should be connected in _____ to the load being controlled

Overcurrents due to short circuits or ground faults are ________ than locked rotor currents

Inductance is the property of the coil that opposes any sudden change in the circuit ______

______ is the transfer of heat by passing from the heat source through space without heating the space in between

It is required that a person within a building receive _______ of ventilation air per person

Disposable filters should be changed atleast twice in an year

As the static pressure in the duct system increases, the amperage on the blower motor _____:

The compression ratio of the compressor increases as the condensing pressure rises:

If the suction pressure of the system increases, the compressing capacity of the system:

____ temperature is registered with a regular thermometer

The actual amount of water vapor that is contained in an air sample is referred to as the _____:

The boiler vent must be kept in ______ position when filling the boiler with water:

When Wet bulb temperature is equal to dry bulb  temperature relative humidity will be:

Chillers operate either on the principles of which of the following: (Multiple Answer Question)

Which of the following compressors are prone to surging at low and high pressures: