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Chemical Engineering Basics

Chemical Engineering Basics
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Re0.8, Re-0.5
Re0.5, Re0.8
Re0.8, Re0.5
Re-0.8, Re0.5

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Chemical Engineering Basics
The main function of the deaerator used in the thermal power plant is to

Remove dissolved gases from feed-water
Remove non-condensable gases from condenser
Enhance feed water temperature
Throttle down the steam pressure

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

65
35
8
80

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Chemical Engineering Basics
Circulation of liquid metal (i.e. molten sodium) in a liquid metal cooled nuclear reactor is done by a/an __________ pump.

Electromagnetic
Reciprocating
Diaphragm
Axial flow

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Chemical Engineering Basics
In radiative heat transfer, a grey surface is the one, which has

Emissivity independent of wavelength
Equal brightness in all directions
Grey appearance to the eye
Zero reflectivity

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Chemical Engineering Basics
Factor of safety is the ratio of the __________ stress to the working stress.

Compressive
Yield
Tensile
Bearing

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