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.Management Sciences
Category: Chemical Engineering Basics
Strain hardening effect in a metal subjected to cold working is due to the ______________ mechanism?
0
A. Fracture
B. Dislocation
C. Slip
D. Twinning
Absolute zero pressure can be attained at a temperature of___________________?
A. 0°C
B. 50°K
C. 0°R
D. None of these
Baffles provided on the shell side of a shell and tube heat exchanger are meant for _____________________?
A. Providing support for the tubes
B. Improving heat transfer
C. Both A & B
D. Preventing the fouling of tubes & stagnation of shell side fluid
__________________ stress cannot be sustained by a fluid in equilibrium ?
A. Shear
B. Tensile
C. Compressive
D. None of these
Plants produce carbohydrates from the CO2 present in the atmosphere by_________________?
A. Polymerisation
B. Photochemical reaction
C. Oxidation
D. None of these
Stainless steel is welded with difficulty because of____________________?
A. Its high melting temperature
B. Chances of cracking
C. Oxide film formation
D. Chromium carbide formation
Potable water means the water used for____________________?
A. Fire-fighting
B. Cooling
C. Drinking
D. Evaporation to produce steam
Dry saturated steam can be converted into super heated steam by____________________?
A. Increasing its cross-sectional area of flow
B. Passing it through a pressure reducing valve
C. Forcing it downwards through a vertical tube
D. None of these
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