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Chemical Engineering Basics

Chemical Engineering Basics
The most detrimental impurity in high pressure boiler feed water is

Suspended salt
Silica
Turbidity
Dissolved salt

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Chemical Engineering Basics
Thermal efficiency of an internal combustion engine is around __________ percent.

80
65
8
35

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Chemical Engineering Basics
Toughness of a material is measured by the

Vicker's hardness test
Universal testing machine
Scratch test
Notched bar test

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Chemical Engineering Basics
Out of the following, the joint produced by __________ has the lowest strength.

Brazing
Rivetting
Soldering
Welding

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Chemical Engineering Basics
Consideration of the creep is the most important in case of the

Flywheel of steam engine
Piston of an I. C. engine
Blades of gas turbine
Cycle chain

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

23
23/2
25/2
21/3

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