Heat Transfer - Study Mode
[#116] Evaporation of 1kg of water from a solution in a single effect evaporator requires about __________ kg of steam.
Correct Answer
(B) 1-1.3
[#117] Stefan-Boltzman law which describes the radiation heat transfer states that, it is proportional to (where, t = temperature in °C T = absolute temperature in °K)
Correct Answer
(B) T 4
[#118] A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of
Correct Answer
(B) 2 0.8
[#119] The film co-efficient between condensing vapour and metal wall increases with
Correct Answer
(A) Increasing temperature of the vapour
[#120] To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is
Correct Answer
(B) 1-1 heat exchanger