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Chemical Engineering Basics

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

Radius
Volume
Number
Weight

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Chemical Engineering Basics
A suitable lubricant used for watches is

Palm oil
Hazel-nut oil
Grease
Metallic soap solution

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Chemical Engineering Basics
A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

0.44
0.33
0.25

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Chemical Engineering Basics
Tempering of a material does not improve its

Toughness
Machinability
Softness
Internal stress level

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Chemical Engineering Basics
Rain drops falling through atmospheric air attain limited terminal velocity, because of

Upward thrust due to air
Force of gravity
Viscous force exerted by air
Surface tension effects of water

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Chemical Engineering Basics
The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it, is defined as the

Superficial velocity
Minimum fluidisation velocity
Terminal velocity
Elutriation velocity

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