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Process Equipment and Plant Design

Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

0.3 to 0.5 d
0.1 to 0.2 d
0.95 d
0.65 to 0.85 d

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Process Equipment and Plant Design
Cooling water fouling factors vary in the range of 0.001 to 0.003

(BTU/hr.ft² . °F)⁻¹
(W/m².°K)⁻¹
(kcal/hr.m² .°C)⁻¹
(kcal/hr. m. °C)⁻¹

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Process Equipment and Plant Design
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

88-105
17-34
52-68
43929

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Process Equipment and Plant Design
The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always

1
< 1
Equal to the order of reaction
>1

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Process Equipment and Plant Design
Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate?

Square pitch
Triangular pitch
Diagonal square pitch
Heat transfer rate is independent of tube arrangement

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Process Equipment and Plant Design
Tube height in a calendria type evaporator is normally less than __________ metres.

2
3.5
5.5
1

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