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Chemical Engineering Basics

Chemical Engineering Basics
__________ of air does not increase with increase in temperature.

Density
Viscosity
Thermal diffusivity
Thermal conductivity

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Chemical Engineering Basics
Out of the following, the joint produced by __________ has the lowest strength.

Rivetting
Brazing
Soldering
Welding

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Chemical Engineering Basics
Function of feed check valve in a boiler is to

Prevent the back flow of water
Facilitate circulation of high pressure feed water
Check the water level in the boiler drum
Regulate the water flow to boiler

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Chemical Engineering Basics
Thermal efficiency of an internal combustion engine is around __________ percent.

35
8
80
65

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Chemical Engineering Basics
The stress at which a metal fails by fatigue lies

In the elastic range
Near the fracture point of the stress-strain curve
None of these
In the plastic range

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Chemical Engineering Basics
'Flare tower' used in industry is meant for

Cooling of furnace exhaust gases
Absorbing the pollutant gases from the furnace exhaust
None of these
Venting off (after burning) the excess inflammable/toxic gases at high pressure

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