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ISRO Technician-B
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ISRO Technician-B MRAC 2017
71

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

71) In a cooling tower, the dissipation of heat is mainly due to

Evaporation

Conduction

Convection

Radiation

Answer is:

Evaporation

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

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Related ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

72) Cooling water at the inlet of condenser of a refrigeration plant enters at 20 degree celsius and leaves at 25 degree celsius. The refrigerant would be condensing at about

30 degree Celsius

20 degree celsius

15 degree celsius

25 degree celsius

Answer is:

30 degree Celsius

73) Cooling range in cooling tower is the

difference in temperature of the cold water leaving the cooling tower and the wet bulb temperature of surrounding air

difference in temperature of the cold water and atmospheric temperature

difference in temperature of hot water entering and cold water leaving

amount of heat thrown away by the cooling tower in kcal/hr

Answer is:

difference in temperature of hot water entering and cold water leaving

74) If (2,3) lies on the line kx+(2k+1)y-11=0, the value of k will be

1

-1

0

8

Answer is:

1

75) A rectangular park is 55m by 45m. A path 2.5m wide is built all around inside it. The cost of grassing the remaining park at Rs 10 per sq.m is

Rs. 20,000

Rs. 22,000

Rs. 17,200

Rs. 24,000

Answer is:

Rs. 20,000

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

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