Materials and Construction MCQs

Question 1

Nickel is a __________ material.

Accepted Answer

Ferromagnetic

Answer

Diamagnetic

Answer

Paramagnetic

Answer

None of these

Question 2

Alinco, which is a aluminium-cobalt-nickel steel, is used for making

Accepted Answer

Powerful magnets

Answer

Surgical instruments

Answer

Chemical equipments

Answer

Boiler tubes

Question 3

Biological shield in a nuclear power reactor is made of

Accepted Answer

Concrete

Answer

Steel

Answer

Cadmium

Answer

Zircalloy

Question 4

The fermentor used for the production of ethyl alcohol from molasses is made of

Accepted Answer

Copper bearing steel

Answer

Wood

Answer

Concrete

Answer

Procelain

Question 5

The heat treatment process to which castings and the steel balls produced by cold heading are subjected is

Accepted Answer

Normalising

Answer

Tempering

Answer

Annealing

Answer

None of these

Question 6

The behaviour of visco-elastic material is time dependent. This behaviour is commo in __________ materials.

Accepted Answer

Non-crystalline organic polymeric

Answer

Non-crystalline solid

Answer

Crystalline

Answer

Rubberry

Question 7

H 2 SO 4 (< 50% concentration) is corrosive to

Accepted Answer

Aluminium, mild steel, stainless steel, concrete & tin

Answer

Copper, cast iron & high silicon iron (14% Si)

Answer

Rubber (butyl and hard), silicone rubber & teflon

Answer

Glass, graphite, porcelain & stoneware

Question 8

Constantan is an alloy of

Accepted Answer

Cu (55%) & Ni (45%)

Answer

Cu (55%) & Sn (45%)

Answer

Pt (95%) & Rh (10%)

Answer

Fe (80%) & Ni (20%)

Question 9

Constituents of stellite are

Accepted Answer

Cobalt, chromium and tungsten

Answer

Zinc, copper and nickel

Answer

Zinc, aluminium and nickel

Answer

Nickel, cobalt and vanadium