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.Management Sciences
Category: Chemical Engineering Basics
Liquid nitrogen containers can be made from ___________________?
0
A. Ferritic stainless steel
B. HSLA steel
C. Titanium
D. Austenitic stainless steel
For separating small pieces of metal from engine oil of a car, the best separating technique is the _____________________ ?
A. Chromatography
B. Evaporation
C. Filtration
D. Fractional distillation
What is the value of included angle of a triangular notch for maximum discharge ?
A. 30°
B. 60°
C. 90°
D. 120°
Current employed in resistance welding ranges from ____________________ kVA/cm2?
A. 1.2 to 2.5
B. 4.5 to 6.2
C. 7.5 to 8.5
D. 10.5 to 15.5
The substance used as a smoke screen in warfare is___________________?
A. C2H2
B. SiCl4
C. P2O5
D. PCl5
Consideration of the creep is the most important in case of the_____________________?
A. Blades of gas turbine
B. Piston of an I. C. engine
C. Flywheel of steam engine
D. Cycle chain
Pick out the wrong statement about the machinability of metals. Machinability of a metal ?
A. Decreases with increase in strain hardening tendencies
B. Decreases with increase in hardness, in general
C. Depend on the composition, microstructure and physical & mechanical properties
D. Decreases with increases in tensile strength & decrease in grain size
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