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Process Equipment and Plant Design

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

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

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Process Equipment and Plant Design
The normal range of velocity of water in pipes is __________ m/sec.

15-30
0.1-0.5
1-2
10-50

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Process Equipment and Plant Design
Safety valves are provided in chemical equipments to guard against excessive

Noise
Temperature
Pressure/pressure fluctuation
Turbulence

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

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

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Process Equipment and Plant Design
The wall thickness of thin cylindrical shell with hemispherical ends is __________ that of the spherical ends.

More than
Equal to
Either B or C; depends on maximum permissible internal pressure
Less than

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Process Equipment and Plant Design
With increase in temperature drop (in a shell and tube heat exchanger), the LMTD correction factor, FT

Remains constant
Increases linearly
Decreases very rapidly
Increases very rapidly

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