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Chemical Engineering Basics

Chemical Engineering Basics
Which of the following welding processes employs the highest welding temperature ?

Arc welding
Gas welding
Resistance welding
Thermit welding

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Chemical Engineering Basics
Filler material used in welding having the lowest melting point out of the following is

Brazing spelter
Soft solder
Silver solder
Aluminium

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Chemical Engineering Basics
Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

Gr0.33, Gr0.25
Gr0.25, Gr
Gr, Gr0.25
Gr0.25, Gr0.33

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Chemical Engineering Basics
Milk is fat dispersed in water. It is an example of

Emulsion
Gel
Suspension
Solution

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

65
35
80
8

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Chemical Engineering Basics
A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.

Derivative
Proportional
None of these
Integral

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