Heat Transfer In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger. Four times Thrice Twice Once Four times Thrice Twice Once ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 30 1 20 10 30 1 20 10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl and Reynold's analogies are identical for Prandtl number value of 0.5 5 1 0.5 5 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms⁻². Neglecting the heat capacity of agitator, the temperature of water (in °C) is 25 40.5 34.4 26.8 25 40.5 34.4 26.8 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reynold's analogy states that NRe α f Nst α f NNu α f Nst α NRe NRe α f Nst α f NNu α f Nst α NRe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have A porous structure Less resistance to heat flow Low thermal conductivity High thermal conductivity A porous structure Less resistance to heat flow Low thermal conductivity High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
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