MATERIALS AND CONSTRUCTION QUIZ

Purity of electrical grade aluminium should be ≥ __________ percent.

95

99.5

90

85

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ does not contain tin as an alloying material.

Pewter

Brass

Babbit metal

Solder

TRUE ANSWER : ?
YOUR ANSWER : ?

Evaporator used for concentrating tomato juice is made of

Stainless steel-glass lined

Cast iron-rubber lined

Brass

Nickel

TRUE ANSWER : ?
YOUR ANSWER : ?

Mild steel storage vessels are suitable for the storage of

Hydrochloric acid (95%)

Fatty acids

Sulphuric acid (25%)

Anhydrous ammonia

TRUE ANSWER : ?
YOUR ANSWER : ?

Steel rods are used in reinforced concrete to increase its __________ strength.

Shear

None of these

Compressive

Tensile

TRUE ANSWER : ?
YOUR ANSWER : ?

Thermoplastic resins are those polymers, which

Has decreased plasticity at increasing temperature

None of these

Can not be moulded

Easily deform under pressure at high temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Plate and frame filter press is usually made of

Cast iron

Stainless steel

Mild steel

Galvanised iron

TRUE ANSWER : ?
YOUR ANSWER : ?

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

75

2

40

0.5

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has the least carbon percentage?

Mild steel

White cast iron

Low carbon steel

Wrought iron

TRUE ANSWER : ?
YOUR ANSWER : ?

Glass is corroded by

None of these

Phosphoric acid

Fluorine (dry or wet)

Sulphuric acid

TRUE ANSWER : ?
YOUR ANSWER : ?

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