Aluminium, mild steel, stainless steel, concrete & tin
Copper, cast iron & high silicon iron (14% Si)
Rubber (butyl and hard), silicone rubber & teflon
Glass, graphite, porcelain & stoneware
✅ The correct answer is option A.
Materials and Construction MCQs
Softening of hardned steel is done by its
Normalising
Tempering
Annealing
Carburising
✅ The correct answer is option B.
Ceramic materials fabrication can not be done by
Welding
Slip casting
Extrusion
Plastic pressing
✅ The correct answer is option A.
Anodic material used for the cathodic protection of underground buried steel pipeline is
Nickel or copper
Zinc or magnesium
Bronze
Brass
✅ The correct answer is option B.
Bell metal is an alloy of
Copper & zinc
Copper & tin
Copper & nickel
Zinc & tin
✅ The correct answer is option B.
Molten phthalic anhydride is stored in a/an __________ vessel.
Aluminium
Nickel clad steel
Lead lined steel
Glass lined steel
✅ The correct answer is option A.
Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about
Half
One third
One fifth
One twelfth
✅ The correct answer is option C.
Cast iron is a __________ material.
Brittle
Ductile
Tough
Malleable
✅ The correct answer is option A.
The heat treatment process to which castings and the steel balls produced by cold heading are subjected is
Tempering
Normalising
Annealing
None of these
✅ The correct answer is option B.
How many atoms are there per unit cell in a body centred cubic lattice system?
2
3
4
6
✅ The correct answer is option A.