Refrigeration and Air Conditioning (2161908) MCQ

MCQs of Human Comfort

MCQ No - 1

The metabolic rate depends mainly on

(A) age of the human being
(B) the activity level of the human being
(C) the sex of the human being
(D) all of the above

MCQ No - 2

The index which corelates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as

(A) mean radiant temperature
(B) effective temperature
(C) dew point temperature
(D) none of these

MCQ No - 3

The optimum effective temperature for human comfort is

(A) higher in winter than in summer
(B) lower in winter than in summer
(C) same in winter and summer
(D) not dependent on season

MCQ No - 4

Which of the following statement is correct?

(A) The human body can lose heat even if its temperature is less than the atmospheric temperature
(B) The increase in air movement increases the evaporation from the human body
(C) The warm air increases the rate of radiation of heat from the human body
(D) Both A and B

MCQ No - 5

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

(A) negative
(B) positive
(C) zero
(D) none of these