Materials and Construction MCQs

Question 1

Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium

Accepted Answer

Tin, nickel, iron and chromium

Answer

And graphite

Answer

And copper

Answer

None of these

Question 2

Manganese in steel affects its

Accepted Answer

Tensile strength

Answer

Ductility

Answer

Hardness

Answer

None of these

Question 3

Which of the following contains maximum percentage of carbon?

Accepted Answer

Saws for cutting steel

Answer

Boiler plate steel

Answer

Rail steel

Answer

Railway spring steel

Question 4

The phenomenon in which slow extension of material takes place with the time at constant load is called

Accepted Answer

Creep

Answer

Plasticity

Answer

Elasticity

Answer

Ductility

Question 5

The fermentor used in the production of pencillin (by deep fermentation process) is made of

Accepted Answer

Glass lined steel

Answer

Glass

Answer

High silicon cast iron

Answer

Procelain

Question 6

Among the tin containing alloys, __________ consumes the maximum amount of tin.

Accepted Answer

Solder

Answer

White metal

Answer

Pewter matal

Answer

Bronzes

Question 7

Metalloid is

Accepted Answer

An element which exhibits the properties of both metal & non-metal

Answer

Highly electronegative in nature

Answer

An alloy

Answer

All of the above

Question 8

Combination of metals and ceramics are called

Accepted Answer

Cermets

Answer

Metalloy

Answer

Pellets

Answer

Non-crystalline ceramics

Question 9

Cermets are __________ materials.

Accepted Answer

Refractory

Answer

Reinforced

Answer

Abrasive

Answer

Fully metallic