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Process Equipment and Plant Design

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

Slope & length
All of these
Flights arrangement
Rpm

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Process Equipment and Plant Design
Filtration rate is affected by the

Pressure drop across the cake & filter medium
All of these
Cake & filter medium resistance
Area of filtering surface & the viscosity of filtrate

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Process Equipment and Plant Design
Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around

0.35-0.75
0.1-0.2
0.55-0.85
0.4-0.6

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Process Equipment and Plant Design
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as

D = 1.5 t
D = 3√t
D = 1.6 √t
D = 1.1 t

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Process Equipment and Plant Design
Fresh water carrying pipelines in chemical industries are coloured with __________ color.

Brown
Red
Yellow
Sea green

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Process Equipment and Plant Design
Nominal size of a pipe is an indication of its __________ diameter.

Outer
Approximate
None of these
Inner

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