MATERIALS AND CONSTRUCTION QUIZ

Polymorphism is not exhibited by

Phosphorous

None of these

Carbon

Iron

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing.

Oxygen

Antimony

Arsenic

Bismuth

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Tin, nickel, iron and chromium

None of these

And graphite

And copper

TRUE ANSWER : ?
YOUR ANSWER : ?

A material capable of undergoing large permanent deformation, when subjected to tension is termed as

Friable

Ductile

Brittle

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of high phosphorous in cast iron increases its

Shrinkage

Tensile strength

Fluidity

Melting point

TRUE ANSWER : ?
YOUR ANSWER : ?

Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of

Lead lined mild steel

Rubber lined mild steel

Aluminium

Cast iron

TRUE ANSWER : ?
YOUR ANSWER : ?

The material of construction of bearings is

Cast iron

Steel

Pig iron

Babbit metal

TRUE ANSWER : ?
YOUR ANSWER : ?

A magnetic material becomes __________ above the Curie temperature.

Diamagnetic

Paramagnetic

None of these

Ferromagnetic

TRUE ANSWER : ?
YOUR ANSWER : ?

The purpose of nitriding the steel is to

None of these

Harden its surface

Improve its reliability

Soften its surface

TRUE ANSWER : ?
YOUR ANSWER : ?

Carbon percentage in medium carbon steel is around

0.1 to 0.35

1 to 1. 5

0.8 to 1.4

0.35 to 0.5

TRUE ANSWER : ?
YOUR ANSWER : ?

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