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Process Equipment and Plant Design

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
4
43832

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Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

D
1.5 d
2.5 d
0.5 d

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Process Equipment and Plant Design
Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if

Plain carbon steel and cast iron parts are used
Both B & C
Material of construction is high alloy steel
Wall thickness is > 30 mm

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Process Equipment and Plant Design
The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

2 to 2.5
0.5 to 1
1.5 to 2
1 to 1.5

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Process Equipment and Plant Design
The safe distance of habitation from a hazardous chemical plant (TLV of its product < 1000 ppm) should be about __________ kms.

15
1
5
25

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Process Equipment and Plant Design
The ratio of shear stress to shear strain is called

Modulus of rigidity
Bulk modulus
Shear modulus
Modulus of elasticity

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