MATERIALS AND CONSTRUCTION QUIZ

A chemical change takes place when iron

None of these

Melts

Rusts

Is heated

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a non-magnetic material?

None of these

Zinc

Nickel

Cobalt

TRUE ANSWER : ?
YOUR ANSWER : ?

Rubber lined pumps can be used to pump

Chlorinated brine

Hypochlorous acid

All of these

Caustic soda

TRUE ANSWER : ?
YOUR ANSWER : ?

In a plate type heat exchanger, heat transfer plates are never made of

Titanium

Cast iron

Stainless steel

Hastealloy C

TRUE ANSWER : ?
YOUR ANSWER : ?

Carbon content in plain carbon steel is __________ percent.

0.35 to 0.45

0.65 to 0.80

0.1 to 0.15

0.85 to 1.2

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ iron is produced, when molten pig iron is chilled suddenly.

Grey cast

White cast

Wrought

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Gas holder of a gobar (cowdung) gas plant is made of

Mild steel

Tin

Aluminium

Molybdenum stainless steel

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ alloys have the highest specific strength of all the structural materials out of the following.

Chromium

Magnetic steel

Titanium

Magnesium

TRUE ANSWER : ?
YOUR ANSWER : ?

Wood metal is not used for making

Soft solder

Fusible safety plug for pressure cooker

Storage tank for storing brine and caustic soda

Casting for dental work

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of high amount of silicon in cast iron

Increases the formation of graphite

Suppresses the decomposition of Fe₃ C

Increases the contraction of the metal

Reduces its fluidity

TRUE ANSWER : ?
YOUR ANSWER : ?

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