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.Management Sciences
Category: Chemical Engineering Basics
To counteract the bad effects of strain hardening on a cold formed part, it must be ______________________?
A. Tempered
B. Normalised
C. Annealed
D. Hardened
During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?
A. Time
B. Square root of time
C. Square of time
D. Cube of time
The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the _______________ allowance ?
A. Casting
B. Pattern
C. Draft
D. Distortion
With increase in annealing temperature, the following defect density decreases?
A. Vacancy
B. Dislocation
C. Grain boundary
D. All of these
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of__________________?
A. 23
B. 23/2
C. 25/2
D. 21/3
Sudden fall of atmospheric pressure by a large amount is an indication of the_____________________?
A. Rain
B. Cold wave
C. Storm
D. Fair weather
______________________ temperature remains constant during adiabatic saturation process of unsaturated air ?
A. Dew point
B. Dry bulb
C. Wet bulb
D. None of these
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