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Chemical Engineering Basics

Chemical Engineering Basics
A jig is used while __________ a hole.

Counter boring
Drilling
Boring
Enlarging

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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

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

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Chemical Engineering Basics
Out of the following, the dimensionless quantity is

Density
Specific weight
Viscosity
Mach number

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Chemical Engineering Basics
Lead is added to 60:40 brass primarily to improve

Machinability
Corrosion resistance
Strength
Fluidity

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Chemical Engineering Basics
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Re0.5, Re0.8
Re-0.8, Re0.5
Re0.8, Re-0.5
Re0.8, Re0.5

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Chemical Engineering Basics
Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

1.5
7
3
5

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