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Heat Transfer

Heat Transfer
Which is the most suitable for cold viscous feed?

Parallel feed
Backward feed
Forward feed
Mixed feed

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Heat Transfer
Conductance is given by(where, x = thickness, A = heat flow area, K = thermal conductivity.)

A/Kx
KA/x
X/KA
K/Ax

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Heat Transfer
Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid ?

None of the listed here
Vent
Catchall
Bleed point

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Heat Transfer
Vibrations in the tubes of a shell and tube heat exchanger is induced due to the

Vibrations transmitted through piping and/or supports due to external reasons
Flow of fluid on the tube and shell sides
Oscillations in the flow of shell/tube sides fluid
All of these

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Heat Transfer
The energy radiated from a surface Q at absolute temperature T is related as

Q ∝ T²
Q ∝ T⁴
None of these
Q ∝ T³

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Heat Transfer
Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called

Conduction
Natural convection
Forced convection
Radiation

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