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Chemical Engineering Basics

Chemical Engineering Basics
Castability of aluminium is increased by the addition of __________ in it.

Manganese
Bismuth
Lead
Silicon

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Chemical Engineering Basics
Source of heat supply in a cupola is

Charcoal
Pulverised coal
Lumpy coal
Coke

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

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

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Chemical Engineering Basics
Speed of a submarine in deep sea & that of an aeroplane is measured by a/an

Hot wire anemometer
Rotameter
Stroboscope
Pitot tube

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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
Aluminium
Silver solder

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Chemical Engineering Basics
At the point of boundary layer separation in fluid flow, the

Density variation is maximum
Shear stress is zero
Velocity gradient is flat
Shear stress is maximum

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