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

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Process Equipment and Plant Design
For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness?

Hemispherical
Flat plate
Conical
Ellipsoidal (2 : 1)

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Process Equipment and Plant Design
In a heat exchanger, shell side fluid velocity can be changed by changing the tube

Both A & B
Layout
Neither A nor B
Pitch

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Process Equipment and Plant Design
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)

None of these
(D₂² - D₁²)/D₂²
D₂ - D₁
(D₂² - D₁²)/D₁²

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Process Equipment and Plant Design
Removable connection of tubes to tube sheet is called

Socket
Nipple
Saddle
Ferrule

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Process Equipment and Plant Design
Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C.

15000
7500
1250
2500

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