Pre-Test

1.               Heat is defined as one of ……….

•           a thermal potential energy in a body.

•   an energy contains in a body.

• a thermal kinetic energy in a body.

• an energy produces out from a body

        Which of the following components is not available at condensing unit of air conditioning system?

• condenser blower

• condenser coil

• an expansion valve

• a compressor

Which of the following components of the air conditioning system controls the air temperature?

• Internal thermostat.

• Expansion device.

• Filter drier.

• Room thermostat.

Which of the following types of air conditioning provides with a big air ducting system and air handling unit (AHU)?

• Package unit and chiller unit.

• Split unit and multi-split unit.

• Chiller unit.

• Window unit.

The flow or movement of air can be controlled by ……….

• a compressor.

• an air filter and condenser blower.

• a condenser blower.

• an evaporator blower and damper.

Which of the following starters is not suitable used for air conditioning starter?

• DOL starter.

• Star delta starter.

• Auto transformer starter.

• DOL forward reverse starter.

When performing the pressure measurement job on air conditioning system, the technician must use ……….

• psychrometer.

• manifold gauge.

• thermometer.

• ammeter.

The heat which is absorbed at evaporator coil and compressor will be ……….

• absorbed to refrigerant at condenser coil.

• absorbed to refrigerant at evaporator coil.

• rejected to surrounding air at evaporator coil.

• rejected to surrounding air at condeser coil.

A cooling tower is available in ……….

• air cooled air conditioner.

• water cooled air conditioner.

• air cooled water chiller.

• water cooler water chiller.

Which of the following expansion device will fully open and fully close automatically due to operation of air conditioning unit?

• Capillary tube.

• Automatic expansion valve.

• Float valve.

• Thermostatic expansion valve.