The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,

Refrigeration and Air Conditioning
The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,

Will remain unaffected

Will be higher

May be higher or lower depending upon the nature of non-condensable gases

Will be lower

Will remain unaffected

Will be higher

May be higher or lower depending upon the nature of non-condensable gases

Will be lower

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Refrigeration and Air Conditioning
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

increases

decreases

remains same

depends on other factors

increases

decreases

remains same

depends on other factors

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Refrigeration and Air Conditioning
The thermostatic expansion valve operates on the changes in the

Pressure in the evaporator

Temperature of the evaporator

None of these

Degree of superheat at exit from the evaporator

Pressure in the evaporator

Temperature of the evaporator

None of these

Degree of superheat at exit from the evaporator

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Refrigeration and Air Conditioning
In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is

Less than 2 kg

More than 10 kg

There is no such consideration

More than or equal to 3.65 kg

Less than 2 kg

More than 10 kg

There is no such consideration

More than or equal to 3.65 kg

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Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Constant entropy lines

Constant temperature lines

Constant pressure lines

Constant total heat lines

Constant entropy lines

Constant temperature lines

Constant pressure lines

Constant total heat lines

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Refrigeration and Air Conditioning
A thermostatic expansion valve in a refrigeration system

None of these

Maintains different temperatures in evaporator in proportion to load

Ensures the evaporator completely filled with refrigerant of the load

Is suitable only for constant load systems

None of these

Maintains different temperatures in evaporator in proportion to load

Ensures the evaporator completely filled with refrigerant of the load

Is suitable only for constant load systems

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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,

Refrigeration and Air Conditioning At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

Refrigeration and Air Conditioning The thermostatic expansion valve operates on the changes in the

Refrigeration and Air Conditioning In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is

Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show

Refrigeration and Air Conditioning A thermostatic expansion valve in a refrigeration system

Refrigeration and Air Conditioning
The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,

Refrigeration and Air Conditioning
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

Refrigeration and Air Conditioning
The thermostatic expansion valve operates on the changes in the

Refrigeration and Air Conditioning
In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is

Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Refrigeration and Air Conditioning
A thermostatic expansion valve in a refrigeration system