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Chemical Engineering Basics

Chemical Engineering Basics
Rankine cycle comprises of two isothermal and two __________ processes.

Polytropic
Isobaric
None of these
Isentropic

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Chemical Engineering Basics
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

21/3
25/2
23
23/2

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

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Chemical Engineering Basics
The ratio of coil diameter to wire diameter of a spring is called the spring

Form co-efficient
Deflection
None of these
Index

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Chemical Engineering Basics
The process of removal of scale formed during hot rolling of steel is termed as

Pickling
Shot blasting
Descaling
Skimming

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Chemical Engineering Basics
The stress at which a metal fails by fatigue lies

In the elastic range
Near the fracture point of the stress-strain curve
None of these
In the plastic range

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