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Process Equipment and Plant Design

Process Equipment and Plant Design
The diameter of a propeller agitator used in agitation tank ranges from __________ percent of the tank diameter and its peripherial speed is normally 300 to 500 metres/minute.

55 to 75
40 to 50
15 to 30
5 to 10

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

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

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Process Equipment and Plant Design
The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate.

43834
2
43832
4

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Process Equipment and Plant Design
Cylinderical shell thickness of rotary drier is generally __________ mm.

18-22
43864
44180
43990

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Process Equipment and Plant Design
Le/D for fully open globe value may be around

300
25
10
75

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Process Equipment and Plant Design
In a shell and tube heat exchanger, tube side __________ of the mass velocity.

Neither A nor B
Heat transfer co-efficient is proportional to 0.8th power
Pressure drop is proportional to the square
Both A & B

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