MATERIALS AND CONSTRUCTION QUIZ

The preferred material of construction for storage tanks for 98% sulphuric acid is

Mild steel

Lead

Aluminium

Stainless steel 316

TRUE ANSWER : ?
YOUR ANSWER : ?

'Semi steel' is

Produced by adding 10-20% steel to the cupola charge

Stronger than cast iron

Both A & B

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

Work hardening of a material

Increases its ductility

Decreases its ductility

Decreases its tensile strength

Does not affect its ductility

TRUE ANSWER : ?
YOUR ANSWER : ?

DDT is shipped in

Paper bags

Stainless steel containers

Either B or C

Fibre drums

TRUE ANSWER : ?
YOUR ANSWER : ?

Tin coating is not done by

Spraying

Vaporising

Electro deposition

Hot dipping

TRUE ANSWER : ?
YOUR ANSWER : ?

Hastelloy comprises of

Copper and nickel

Lead and tin

Copper and tin

Molybdenum and nickel

TRUE ANSWER : ?
YOUR ANSWER : ?

Approximate value of the modulus of elasticity for steel is about __________ x l0⁶kg/cm².

2

75

0.5

40

TRUE ANSWER : ?
YOUR ANSWER : ?

Addition of tungsten to steel imparts

Ductility

Corrosion resistance

Cutting hardness

Magnetic properties

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is produced by condensation polymerisation?

Polythene

Poly vinyl chloride

Bakelite

Polystyrene

TRUE ANSWER : ?
YOUR ANSWER : ?

Coke oven regenerators are made of __________ bricks.

Silica

Fire clay

Low thermal conductivity

High electrical conductivity

TRUE ANSWER : ?
YOUR ANSWER : ?

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