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Chemical Engineering Basics

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

Pitot tube
Rotameter
Hot wire anemometer
Stroboscope

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Chemical Engineering Basics
In radiative heat transfer, a grey surface is the one, which has

Grey appearance to the eye
Zero reflectivity
Equal brightness in all directions
Emissivity independent of wavelength

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Chemical Engineering Basics
Paint spray gun works on the principle of

None of these
Boyle's law
Bernoulli's theorem
Newton's law of viscosity

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Chemical Engineering Basics
The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Less than
Equal to
Either A, B or C; depends on the size of atom
Greater than

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

Skimming
Shot blasting
Descaling
Pickling

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Chemical Engineering Basics
The ratio of thermal & electrical conductivity is same for all the metals at the same temperature ; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)

T
1/T
T²
1/T²

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