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Process Equipment and Plant Design

Process Equipment and Plant Design
Joint efficiency (J) for a seamless pipe is

1
< 0.5
1.2
0.85

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Process Equipment and Plant Design
The maximum liquid gradient over a tray must not exceed

0.5" -1.25"
Half the tray spacing
2"-3.5"
5"

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Process Equipment and Plant Design
The wall thickness for a large high pressure pipeline is determined by the consideration of the

Axial tensile stress in the pipe
Circumferential pipewall tension
Temperature stresses
Forces exerted by static and dynamic action at bends

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

Saddle
Socket
Ferrule
Nipple

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Process Equipment and Plant Design
In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.)

L/Z.H.ρ
H.ρ/L
Z.H.ρ/L
Z.H/L.ρ

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Process Equipment and Plant Design
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

None of these
Ponchon-Savarit method
McCabe-Thiele's method
Sorel-Lewis method

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