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Chemical Engineering Basics

Chemical Engineering Basics
A suitable lubricant used for watches is

Metallic soap solution
Palm oil
Grease
Hazel-nut oil

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Chemical Engineering Basics
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Re0.5, Re0.8
Re0.8, Re-0.5
Re0.8, Re0.5
Re-0.8, Re0.5

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Chemical Engineering Basics
Lead is poured into the joint between two __________ pipes.

Cast iron
Concrete
Asbestos cement
Mild steel

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

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

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Chemical Engineering Basics
Unit of viscosity in CGS system is

Gm .cm⁻², sec⁻¹
Gm . cm² . sec⁻²
Gm .cm⁻¹ sec⁻¹
Gm . cm . sec⁻¹

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Chemical Engineering Basics
1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).

10
1000
100
10000

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