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.Management Sciences
Category: Materials and Construction
How many atoms are there per unit cell in a body centred cubic lattice system ?
0
A. 6
B. 5
C. 3
D. 2
The heat treatment process applied to cold formed steel parts is ____________________?
A. Normalising
B. Tempering
C. Artificial ageing
D. Solution annealing
Which of the following has no effect on the carbide forming tendency in steels ?
A. Molybdenum
B. Phosphorus
C. Chromium
D. Vanadium
Zircaloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium_______________?
A. Tin, nickel, iron and chromium
B. And graphite
C. And copper
D. None of these
German silver in an alloy of________________?
A. Copper, nickel and zinc
B. Copper, aluminium and silver
C. Silver, zinc and aluminium
D. Silver, nickel and zinc
Spray dryer for evaporating milk to produce milk powder is made of_________________?
A. Lead lined steel
B. Stainless steel
C. Aluminium
D. Cast iron
Condenser tubes are not made of_________________?
A. Cartridge brass
B. Muntz brass
C. Wood metal
D. Aluminium brass alloy
_____________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working?
A. Solid solution hardening
B. Screw dislocation
C. Strain ageing
D. Twinning
Liners of a ball mill are never made of__________________?
A. Lead
B. Alloy steel
C. Rubber or ceramic material
D. Cast iron
Vycor, a widely used material for making ‘thermal wells’ in temperature measurement, is a_______________?
A. Cermet
B. Glass
C. Thermosetting plastic
D. Metallic alloy
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