MATERIALS AND CONSTRUCTION QUIZ

The main constituent of carborundum is __________ carbide.

Aluminium

Boron

Silicon

Calcium

TRUE ANSWER : ?
YOUR ANSWER : ?

To improve the machinability of steel by its softening, it is subjected to

Cold working

Annealing

Heating

Shot blasting

TRUE ANSWER : ?
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Rotary driers are generally made of

Mild steel

Cast iron

Tin lined with refractory bricks

High silicon iron (14% Si)

TRUE ANSWER : ?
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Which of the following comprises of hydrocarbons?

Mica flakes

Glass

Rubber

None of these

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Carbon is present in the combined form (carbide) in case of

Pig iron

Steel

Ferroalloys

All of these

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Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%?

Steel

Nickel

Cast iron

Karbate

TRUE ANSWER : ?
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The heat treatment process applied to cold formed steel parts is

Normalising

Artificial ageing

Solution annealing

Tempering

TRUE ANSWER : ?
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Mild steel is

Highly resistant to corrosion (as much as stainless steel)

A high carbon steel (0.5 to 1.5% carbon)

Very poor in strength & ductility

A low carbon steel (0.05 to 0.3% carbon)

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ is used for determining the tensile strength of steels.

Universal testing machine

Mechanical press

Hydraulic press

None of these

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Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it.

Copper alloys

Stainless steel

Monel

Copper

TRUE ANSWER : ?
YOUR ANSWER : ?

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