The reciprocating refrigerant compressors are very suitable for

Refrigeration and Air Conditioning
The reciprocating refrigerant compressors are very suitable for

Small displacements and high condensing pressures

Large displacements and high condensing pressures

Large displacements and low condensing pressures

Small displacements and low condensing pressures

Small displacements and high condensing pressures

Large displacements and high condensing pressures

Large displacements and low condensing pressures

Small displacements and low condensing pressures

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Refrigeration and Air Conditioning
In vapour compression cycle the condition off refrigerant is dry saturated vapour

After passing through the condenser

After passing through the expansion or throttle valve

Before entering the compressor

Before passing through the condenser

After passing through the condenser

After passing through the expansion or throttle valve

Before entering the compressor

Before passing through the condenser

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Absorber and generator

Generator

Liquid pump

Absorber, generator and liquid pump

Absorber and generator

Generator

Liquid pump

Absorber, generator and liquid pump

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Refrigeration and Air Conditioning
When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by

Raising the higher temperature

Operating the machine at lower speeds

Lowering the higher temperature

Operating the machine at higher speeds

Raising the higher temperature

Operating the machine at lower speeds

Lowering the higher temperature

Operating the machine at higher speeds

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Refrigeration and Air Conditioning
Degree of saturation or percentage humidity is

The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure

The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure

The mass of water vapour present in 1 m³ of dry air

The mass of water vapour present in 1 kg of dry air

The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure

The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure

The mass of water vapour present in 1 m³ of dry air

The mass of water vapour present in 1 kg of dry air

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Refrigeration and Air Conditioning
Which of the following refrigerant has the highest freezing point.

Sulphur dioxide

Carbon dioxide

Ammonia

R-12

Sulphur dioxide

Carbon dioxide

Ammonia

R-12

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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning The reciprocating refrigerant compressors are very suitable for

Refrigeration and Air Conditioning In vapour compression cycle the condition off refrigerant is dry saturated vapour

Refrigeration and Air Conditioning In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by

Refrigeration and Air Conditioning Degree of saturation or percentage humidity is

Refrigeration and Air Conditioning Which of the following refrigerant has the highest freezing point.

Refrigeration and Air Conditioning
The reciprocating refrigerant compressors are very suitable for

Refrigeration and Air Conditioning
In vapour compression cycle the condition off refrigerant is dry saturated vapour

Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Refrigeration and Air Conditioning
When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by

Refrigeration and Air Conditioning
Degree of saturation or percentage humidity is

Refrigeration and Air Conditioning
Which of the following refrigerant has the highest freezing point.