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Chemical Engineering Basics

Chemical Engineering Basics
Grain hardness is measured by the __________ hardness testing method.

Knoop
Shore sceleroscope
Vicker's
Rockwell F

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Chemical Engineering Basics
A suitable lubricant used for watches is

Hazel-nut oil
Grease
Palm oil
Metallic soap solution

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Chemical Engineering Basics
Which of the following is a boiler accessory i.e., not a boiler mounting ?

Stop valve
Feed check valve
Feed water pump
Blow off cock

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Chemical Engineering Basics
The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Greater than
Less than
Equal to
Either A, B or C; depends on the size of atom

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Chemical Engineering Basics
Lead is poured into the joints between two __________ pipes.

Steel
Plastic
Cast iron
Concrete

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Chemical Engineering Basics
Which of the following is a unit of time ?

Light year
Barn
None of these
Angstrom

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