A. Convert
B. Extract
C. Absorb
D. No changes in heat
Ans-: C
Q.2 In reversed carnot cycle working on vapour, work done during isothermal process is _____ .
A. Maximum
B. Minimum
C. Increase
D. Zero
Ans -: D
Q.3 The heat , which can be added or removed from a substance without a change in state is called ?
A. Sensible heat
B. Leatent heat
C. Extra heat
D. None of the above
Ans -: A
Q.4 At which temperature , centigrade and Fahrenheit scale have same reading ?
A. - 45 °
B. - 40 °
C. - 100 °
D. - 273 °
Ans -: B
Q.5 Usually the quantity of free air per person in air conditioning system is taken as ______ .
A. 1.2 m^3 / min
B. 1.2 m^3 / sec
C. 0.2 m^3 / he
D. 1.12 m^3 / min
And-: A
Q.6 The dry bulb temperature is ____ , in spray humidification process .
A. Raised
B. Same
C. Lowered
D. Zero
Ans -: C
Q.7 During evaporative cooling process the wet bulb temperature is ___.
A. Remain constant
B. Increased
C. Decreased
D. Zero
Ans -: A
Q.8 Which of the following is commonly used liquid absorbent ?
A. Silica gel
B. Ethylene glycol
C. Activated alumina
D. None of the above
Ans -: B
Q.9 One of the reasons for an evaporator to not cool may be ?
A. Frozen oil
B. Leaking refrigerant
C. Faculty thermostat
D. Insufficient lubricant in refrigerant
And-: A
Q.10 The refrigerator which does not require compressor in known as ____.
A. Carnot refrigerator
B. Tubo-refrigerator
C. Electrolux refrigerator
D. Vapour absorption refrigerator
And-: C
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