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Chemical Engineering Basics

Chemical Engineering Basics
__________ is the most important element, which controls the physical properties of steel.

Silicon
Vanadium
Carbon
Manganese

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Chemical Engineering Basics
Creep consideration is the most important in case of the

Cast iron pipes
Blades of gas turbines
Steam engine flywheel
Cycle chains

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Chemical Engineering Basics
Silicon crystal can be converted to p-type semi-conductor by doping with

Carbon
Nitrogen
Phosphorous
Boron

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Chemical Engineering Basics
Which of the following welding processes employs the highest welding temperature ?

Arc welding
Resistance welding
Gas welding
Thermit welding

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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
Radiation
Nucleate boiling

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Chemical Engineering Basics
While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

3000
1800
2000
2400

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