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Process Equipment and Plant Design

Process Equipment and Plant Design
Which of the following efficiencies can be greater than 100%?

Murphree plate efficiency
None of these
Overall plate efficiency
Point efficiency

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Process Equipment and Plant Design
Steam is preferred to be used as a heating medium in heat exchangers, because of its

High latent heat
Non-corrosive condensate
High film co-efficient
Low cost

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Process Equipment and Plant Design
The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times.the design pressure.

1.5 to 2
3 to 4
4 to 5
>5

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Process Equipment and Plant Design
Excessive liquid gradient on a tray may result in the

Maldistribution of gas
All of these
Back trapping
Gas blowing beneath cap skit

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Process Equipment and Plant Design
A cylindrical storage tank can have a self supported conical roof,

Irrespective of its diameter
If its diameter is more than 50 meters
If the thickness of the roof is more than that of the cylindrical shell
If its diameter is less than 15-20metres

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Process Equipment and Plant Design
Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation

Increases economy
Increases capacity
Does not affect the capacity
Both B & C

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