Q. Which of the following statement is correct?

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Q. When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be

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Q. If a gas is to be liquified, its temperature must be

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Q. The thermostatic expansion valve is used in __________ type of evaporators.

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Q. Thermal conductivity of a material may be defined as the

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Q. During sensible heating of air, specific humidity remains constant.

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Q. Air refrigeration cycle is used in

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Q. Reynolds number is the ratio of

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Q. The wet bulb depression is zero when relative humidity is

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Q. The sensible heat during humidification process decreases.

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Q. According to Newton's law of cooling, the heat transfer from a hot body to a cold body is

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Q. The freezing point of carbon dioxide is equal to boiling point of R-12.

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Q. The condition of refrigerant as it leaves the compressor in a vapour compression system is

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Q. The super-heating in a refrigeration cycle

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Q. A boot-strap air cooling system has

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Q. The boiling point of __________ is -10.5°C.

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Q. One tonne of refrigeration (1TR) means that the heat removing capacity is

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Q. The operating pressure for refrigerating units using R-12 as a refrigerant is

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Q. The specific humidity during heating and humidification process.

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Q. According to Prevost's theory of exchanges, every body irrespective of its temperature continuously emit heat radiations to the surrounding bodies and at the same time receives heat radiations from the surrounding bodies.

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