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Chemical Engineering Basics

Chemical Engineering Basics
Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.

Creep
Fatigue
Tensile
Endurance

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

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

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

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

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

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

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Chemical Engineering Basics
The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.

50
None of these
100

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Chemical Engineering Basics
Shaft/rotor speed is most accurately measured by a

Strobometer
Tachometer
Frequency counter
Speedometer

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