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Heat Transfer

Heat Transfer
Radiation energy is emitted by all the substances, which are above

0°C
none of the listed here
100°C
0°K

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Heat Transfer
It is not preferable to use superheated steam in evaporators, because of its very

high pressure
none of the listed here
high temperature
low film co-efficient

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Heat Transfer
Use of transverse baffles in a shell and tube heat exchanger is done to increase the

Rate of heat transfer
Flow velocity
All of these
Turbulence of shell side fluid

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Heat Transfer
Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second.

3 x l08
3 x l010
3 x l012
3 x l05

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Heat Transfer
Value of Prandtl number for water ranges from

1000 to 2000
100 to 500
5 to 10
L to 2

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Heat Transfer
The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is

Schmidt number
Nusselt number
Stanton number
Sherwood number

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