284) In counter-current flow heat exchangers

both the fluids at inlet are in their hottest state

both the fluids at inlet are in their coldest state

both the fluids at exit are in their hottest state

one fluid is coldest and the other is hottest at inlet

Answer is:

both the fluids at inlet are in their hottest state

before entering the compressor

after leaving the compressor

before entering the condenser

after leaving the condenser

Answer is:

freezing coil

cooling coil

chilling coil

all of these

Answer is:

Explanation:

An evaporator is also known as
* freezing coil
* cooling coil
* chilling coil

before compressor

between compressor and condenser

between condenser and evaporator

between condenser and expansion valve

Answer is:

ammonia

carbon dioxide

sulphur dioxide

R-12

Answer is: