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.Management Sciences
Category: Chemical Engineering Basics
Oxygen cylinders used for autogenous (cutting/welding) purposes are ___________________?
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A. Seamless & made of steel
B. Heat treated before use
C. Made by sand casting
D. Welded steel cylinders
_______________ is not a case hardening process ?
A. Carburising
B. Nitriding
C. Cyaniding
D. Annealing
_______________ test can be termed as the semi-destructive test?
A. Impact
B. Torsion
C. Hardness
D. Charpy
Reduction in the grain size reduces the _________________ of the material?
A. Fatigue resistance
B. Tensile strength
C. Creep resistance
D. All A, B. & C
Direct conversion of thermal energy to electrical energy is facilitated by the____________________?
A. Fuel cells
B. Photo voltaic cell
C. Magneto hydrodynamic generator
D. None of these
The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is ______________ BTU/hr?
A. 100
B. 200
C. 1000
D. 2000
A material being tested for endurance strength is subjected to the _______________ load ?
A. Impact
B. Completely reversed
C. Dynamic
D. Static & dynamic
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