- Triangular pitch
- Square pitch
- Diagonal square pitch
- Heat transfer rate is independent of tube arrangement
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Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)?
Answer: Option 1 Fourier's law of heat conduction is k. A. (dT/dx) where Q = Amount of heat flow through the body in unit time, A = Surface area of heat...
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Fouling factor for a heat exchanger is given by (where, U₁ = heat transfer co-efficient of dirty surface U₂ = heat transfer co-efficient of clean surface)?
Answer: Option 2 Let'
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In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)?
Answer: Option 1 Let'
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In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes)?
Answer: Option 1 Let'
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Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer.?
Answer: Option 3 Let'
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Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling?
Answer: Option 2 Let'
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Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger?
Answer: Option 4 Let'
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Which characteristic of a fluid is not important in deciding its route in a shell and tube heat exchanger?
Answer: Option 4 Let'
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LMTD correction factor which is to be applied for a cross-flow heat exchanger increases with increase in the number of shell passes. Its value for a single pass cross flow heat exchanger is?
Answer: Option 4 Let'
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Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger?
Answer: Option 4 Let'
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