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Chemical Engineering Basics

Chemical Engineering Basics
The weight of a body at the centre of the earth is

Same as on the surface of the earth
None of these
Zero
Infinite

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Chemical Engineering Basics
Boiler draught of 10 mm water column is equivalent to

10 kgf/m²
10 kgf/mm²
1 kgf/mm²
1 kgf/m²

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Chemical Engineering Basics
Which of the following heat treatment processes is usually applied to castings ?

Annealing
Tempering
Carburising
Normalising

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Chemical Engineering Basics
In a casting, cold shut defect is caused by

Very low mould permeability
Low pounhg temperature
Melt-mould reactions
Faulty gating system

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Chemical Engineering Basics
Copper is not present as an alloying constituent in

Delta metal
Constantan
Nichrome
Silicon bronze

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Chemical Engineering Basics
Which of the following is an example of stress corrosion ?

Season cracking of brass
Neither (a) nor (b)
Both (a) & (b)
Caustic embrittlement of steel

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