MATERIALS AND CONSTRUCTION QUIZ

In SO₃ absorber (Contact Process), packing material used is of

Mild steel

Chemical stoneware

Cast iron

Karbate

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of nickel in steel improves its

Cutting ability

All of these

Corrosion resistance

Wear resistance

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YOUR ANSWER : ?

Aqueous nitric acid is stored in __________ vessel.

Plain carbon steel

Cast iron

Thermosetting plastic material

Stainless steel

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Centrifugal pump made of pyrex or glass can't be used to pump

Brine

Milk and fruit juices

Dilute H₂SO₄ at room temperature

Alkaline solutions

TRUE ANSWER : ?
YOUR ANSWER : ?

A metallic alloy in general as compared to their pure metal components is

Having higher melting point

More corrosion resistant

Having lower electrical conductivity

Having lower hardness, reactivity and fusibility

TRUE ANSWER : ?
YOUR ANSWER : ?

Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower

Thermal conductivity

Abundant availability

Corrosion resistance

Price

TRUE ANSWER : ?
YOUR ANSWER : ?

Nickel made/clad equipments are suitable for handling

Ammonia (both aqueous & anhydrous)

Fruit juices, milk & its products and caustic soda solution

Nitric acid & hydrochloric acid (conc)

Sulphuric acid (conc)

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YOUR ANSWER : ?

Which of the following heat treatment processes is used for softening the hardened material?

Tempering

None of these

Annealing

Normalising

TRUE ANSWER : ?
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Ability of a material to __________ is indicated by its damping capacity.

Absorb shock

Withstand compression

Absorb vibration

None of these

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The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.

8

4

0.2

2

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YOUR ANSWER : ?

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