System install and commissioning Quiz Pt1

What is the primary factor in selecting a condensing unit with a compressor?

• Capacity

• Voltage supply

• Location of the unit

• Type of refrigerant used

What is the purpose of a liquid line filter in a refrigeration system?

• Reduces noise

• Adsorbs water and filters contaminants

• Increases pressure drop

• Controls temperature

What is the advantage of using swaged connections over flare fittings when connecting refrigerant tubing?

• Easier to install

• Reduced risk of leaks

• Lower cost

• Higher pressure tolerance

Why is copper not used as a piping medium for refrigerant ammonia?

• Copper cannot handle high pressures

• Ammonia reacts with copper causing leaks

• Copper is too expensive

• Copper corrodes easily

What is the purpose of a condensate tray heater in a refrigeration system?

• Reduces noise levels

• Increases system efficiency

• Controls humidity levels

• Prevents condensate from freezing and blocking the drain

What is the temperature range for brazing refrigerant tubes?

• Between 840°F and 1985°F

• Between 32°F and 50°F

• Between 100°F and 200°F

• Between 0°C and 100°C

What is the purpose of a receiver in a refrigeration system?

• Filters contaminants

• Controls compressor operation

• Stores excess refrigerant

• Regulates temperature

What is the major problem with aluminium piping in refrigeration systems?

• Limited information available

• High cost

• Difficult to install

• Corrosion with certain refrigerants

What is the advantage of an N shape evaporator coil over an A shaped coil?

• Easier to install

• Better heat transfer

• Higher capacity

• More compact configuration

What component is responsible for cycling the compressor when the desired temperature is reached?

• Receiver

• Evaporator

• Condenser

• Thermostat