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Chemical Engineering Basics

Chemical Engineering Basics
__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

Zirconia
Magnesia
Beryllia
Alumina

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

Tensile
Compressive
Bearing
Yield

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Chemical Engineering Basics
Source of heat supply in a cupola is

Coke
Pulverised coal
Charcoal
Lumpy coal

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Chemical Engineering Basics
For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle.

Heat rejection is lower
Maximum temperature is higher
Combustion is at constant volume
Expansion & compression are isentropic

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Chemical Engineering Basics
Atomic __________ of an element is a whole number.

Volume
Radius
Number
Weight

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Chemical Engineering Basics
Nitrogen is not an essential component of

Protein
Urea
Oils & fats
Any of these

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