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Chemical Engineering Basics

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

Volume
Radius
Number
Weight

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Chemical Engineering Basics
The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system

Employs minimum quantity of refrigerant
Consumer minimum horse power
Has very high C.O.P
Is as light as possible

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Chemical Engineering Basics
Lime contains about 90% CaO. Percentage CaO present in limestone is about

70
80
50
25

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

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

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Chemical Engineering Basics
Milligram of KOH required to saponify 1 gm of oil is called its __________ number.

Emulsion
Saponification
Precipitation
Acid

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Chemical Engineering Basics
Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then

Its efficiency will not be affected
It will deliver low discharge of liquid
It will be cavitated
It will not develop sufficient head to raise water

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