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.Management Sciences
Category: Chemical Engineering Basics
Angular displacement can be measured suitably by a______________________?
0
A. Shaft encoder
B. Linear variable differential transducer (LVDT)
C. Stroboscope
D. Tachometer
_______________ is the trade name assigned to a non-ferrous cast alloy composed of cobalt, chromium & tungsten ?
A. Stellite
B. High speed steel
C. Cermet
D. Alnico
________________ is the hardest material out of the following ?
A. Boron carbide
B. Tungsten carbide
C. Hardened steel
D. Silicon carbide
Maximum permissible air velocity in pipelines is about ______________ metre/second ?
A. 5
B. 10
C. 20
D. 40
Which of the following phenomenon/ phenomena is/are diffusion controlled ?
A. Dislocation climb
B. Cross-slip
C. Twinning
D. Recrystallisation
Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
A. E = 2G (1 + v)
B. E = G (1 + v)
C. E = G (1 + v)/2
D. E = 2G (1 + 2v)
Mho’s scale of hardness, which consists of 10 standard minerals is used for the measurement of _______________ hardness?
A. Scratch
B. Indentation
C. Dynamic
D. Rebound
Out of the following the refractive index is the highest for____________________?
A. Glass
B. Diamond
C. Brine
D. Kerosene
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