Q. Degree of saturation or percentage humidity is

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Q. The coefficient of performance of Heat Pump is always __________ one.

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Q. The wet bulb temperature during sensible heating of air

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Q. The C.O.P. of an absorption type refrigerator is given by (where T1 = Temperature at which the working substance receives heat, T2 = Temperature of cooling water, and T3 = Evaporator temperature)

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Q. Which of the following statement is wrong?

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Q. In free convection heat transfer transition from laminar to turbulent flow is governed by the critical value of the

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Q. In a refrigerating machine, heat rejected is __________ heat absorbed.

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Q. Free convection flow depends on

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Q. The critical pressure of a liquid is the pressure

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Q. Conduction is a process of heat transfer

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Q. Thermal diffusivity of a substance is

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Q. The sensible heat factor during the heating and humidification process is given by (where h1 = Enthalpy of air entering the heating coil, h2 = Enthalpy of air leaving the heating coil, and hA = Enthalpy of air at the end of humidification process)

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Q. Sulphur dioxide is extremely toxic and non-flammable.

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Q. The transfer of heat from one body to another takes place only when there is a temperature difference between the bodies.

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Q. A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as

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Q. Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, ρ = Density of substance, S = Specific heat, and k = Thermal conductivity)

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Q. Which of the following statement is correct for ammonia as a refrigerant?

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Q. The conditioned air supplied to the room must have the capacity to take up

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Q. The process of removing moisture from the air, without change in its dry bulb temperature, is called dehumidification.

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Q. The specific humidity during dehumidification process

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