Electrician Practice Tests

…………… blend refrigerant does not exhibit temperature glide and acts as a single refrigerant.

If corrosion found on the relief valve body then immediately ………

When a system pressure increases even after the evacuation then ………

The recovery equipment that depends on the pressure in the refrigeration system is ……….

The frost formed on evaporator fins will acts as …………….. between evaporator heat exchanger and surrounding air.

The accumulator placed in the refrigeration circuit to  …………………… directly passing in to the compressor

The pressure of the refrigerant at the compressor discharge compared to refrigerant pressure at evaporator outlet is …………….

The compound gauge reads the vacuum in the system in ……….

The nitrogen should not be added to a fully charged system for the purpose of leak detection.

From which year on wards the sale of CFC and HCFC refrigerants is restricted to certified technicians.

If you cannot find a leak with any leak detector then

If a technician finds that the refrigerant is mixed

What happens to the time of evacuation if the refrigerant system capacity and gauge set hose size is large?

What are the two ports of recovery cylinders?

The oil is that is recovered during refrigerant recovery