According to ASHRAE standards according to their toxicity and flammability, Class A refrigerant has no toxicity identified even at a low concentration of _______ by volume:

The condensing temperature will be higher in air cooled condenser compared to water cooled condenser:

On starting the compressor, the evaporator / suction pressure will:

When the suction pressure is reduced, the compressor capacity will:

______ is the property that is indicative of the resistance the oil offers to the flow of electric current trough it:

Which of the following machine requires higher maintenance:

Refrigerants with ______ specific volume at a given suction pressure and temperature will require higher compressor displacement:

Ammonia refrigerant has high discharge pressure: