104) The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to

Answer is:

Stanton number

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105) The alignment circle is marked on the psychrometric chart at

Answer is:

26 Degree C DBT and 50% RH

106) The C.O.P. of a Carnot refrigerator in winter will be __________ as compared to C.O.P. in summer.

Answer is:

higher

107) Which of the following statement is correct?

The human body can lose heat even if its temperature is less than the atmospheric temperature.

The increase in air movement increases the evaporation from the human body.

The warm air increases the rate of radiation of heat from the human body.

The human body can lose heat even if its temperature is less than the atmospheric temperature and The increase in air movement increases the evaporation from the human body.

Answer is:

The human body can lose heat even if its temperature is less than the atmospheric temperature and The increase in air movement increases the evaporation from the human body.

108) 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

Answer is:

negative

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