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Process Equipment and Plant Design

Process Equipment and Plant Design
Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter.

1.5 to 2
2.5 to 5
5 to 10
10 to 15

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

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

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Process Equipment and Plant Design
A pipe is generally made of circular cross-section, because a circular cross-section has the

Higher structural strength
None of these
Lowest surface area requirement for a given volume
Both A & B

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Process Equipment and Plant Design
A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law.

Negative
None of these
No
Positive

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Process Equipment and Plant Design
The retention time of material in a rotary dryer depends upon its

Flights arrangement
All of these
Rpm
Slope & length

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Process Equipment and Plant Design
A pressure vessel is said to be made of 'thick' shell, if the ratio of its diameter to wall thickness is

20
20
10
10

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