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Process Equipment and Plant Design

Process Equipment and Plant Design
Friction factor for turbulent flow in a new pipe is given by

f = 16/NRe
f = 25/NRe
f = 0.22 NRe0.05
f = 0.04/NRe0.16

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Process Equipment and Plant Design
Length to diameter ratio of most rotary driers is in the range of

20 to 30
4 to 10
1 to 2
10 to 20

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Process Equipment and Plant Design
The operating pressure drop range in a bag filter is about __________ mm water gauge.

1500-2500
50-150
500-1500
43961

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Process Equipment and Plant Design
Flanges are connected to pipes by

Screwing
Brazing
Welding
All of these

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Process Equipment and Plant Design
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.

Allowable
Damaging
Working
None of these

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Process Equipment and Plant Design
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?

Disk type baffle
Flat plate extending across the wall
Segmental baffle
Helical type baffle

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