Process Equipment and Plant Design
The LMTD correction factor (FT) is defined as the

Ratio of true temperature difference to the LMTD
Ratio of LMTD to the true temperature difference
Differenced of true temperature difference and the LMTD
Geometric mean of the true temperature difference and the LMTD

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Process Equipment and Plant Design
A stuffing box is used for

Facilitating smooth opening and closing of a valve
Absorbing the contraction/expansion of pipeline due to temperature changes
Reducing the resistance of fluid flow
Prevention of fluid leakage around moving parts

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a basket type evaporator.

Downtake is formed by the annular space between the bundle and the shell
There is no central downtake
It is used for high viscosity liquor having large rate of scaling
The tube bundle is suspended on bracket

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