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Chemical Engineering Basics

Chemical Engineering Basics
In a casting, cold shut defect is caused by

Very low mould permeability
Low pounhg temperature
Melt-mould reactions
Faulty gating system

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Chemical Engineering Basics
Measurement of the area of the indented surface is not involved in the __________ hardhes testing method.

Knoop
Rockwell
Brinell
Vicker's

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

Tensile
Yield
Compressive
Bearing

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

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

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Chemical Engineering Basics
If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.

Conduction
Convection
Nucleate boiling
Radiation

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Chemical Engineering Basics
Rankine cycle comprises of two isothermal and two __________ processes.

None of these
Polytropic
Isobaric
Isentropic

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MORE MCQ ON Chemical Engineering Basics

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