49.

80,

51.

52.

88.

54.

55.

56.

57.

The process of addition of moisture to air at constant ‏صا‎ bulb temperature is :
(ಸಿ) क conditioning (3) humidification
(0) sensible heating ' (D) dehydration

Boiling temperature of Freon-22 is :
(A) -33.33°C (18) -78.550
(¢) -29.8°C (D) -40.7°C

In a psychrometric process, the sensible heat added is 40 kd/sec and latent heat added is
30 kd/sec. The sensible heat factor for the process will be :

(^) 03 (8) 7
(൫ 06 D) 057
The highest temperature in vapour compression cycle 000025 ३४:
(ക) receiver (3) expansion valve
(C) compressor discharge (D) condenser discharge

Greenhouse effect refera to increase in : _
(^) global temperature (0) carbon monoxide
(C) atmospheric pressure (D) greenery

At the critical point of steam :
(ക) boiling point is 0°C (13) enthalpy ‏اه‎ evaporation is zero
(C) sensible heat is 2610 (D) total enthalpy is zero

Coneentration of solids in boiler drum is controlled by :
(4) reducing dosage of chemicals (B) blowdown
(C) steam venting (D) deaeration

What type of steam is generally used for power generation?
(ಗಿ) நமஹ pressure steam with super heat
(B) dry saturated low pressure steam
(©) dry saturated steam with high pressure
(D) wet steam with very high pressure

Profile of the gear tooth can be checked by :
(ಗಿ) optical pyrometer (8) sine bar
(C) bench micrometer (D) optical projector

9 236/2015
[९.7.01