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chemical engineering materials and construction MCQs

Practise multiple-choice questions from chemical engineering materials and construction for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering materials and construction Mcqs
1. Pick out the wrong statement?
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A. Brass is an alloy of copper & zinc

B. Bronze is an alloy of copper & tin

C. The alloy named German silver does not contain any silver

D. The ability of a material to fracture without appreciable deformation is called its ductility
2. Pipes for bi-cycle frames are made of _____________ steel?
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A. Stainless

B. Hot rolled

C. Chrome carbon

D. Cold rolled
3. A suitable material of construction to use with fuming sulphuric acid is_________________?
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A. Carbon steel

B. Nickel

C. Monel

D. Stainless steel type 304

4. Pick out the wrong statement?
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A. Spheroidal grey cast iron contains graphite flakes

B. Wrought iron cannot be easily forged and welded

C. Wrought iron contains about 0.02% carbon

D. The chilled cast iron does not contain graphite

5. Aluminium storage vessel can be used to store________________?
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A. Aqua regia

B. None of these

C. Hydrochloric acid (10%)

D. Ferrous sulphate

6. Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40C ?
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A. Nickel, monel, stainless steel and graphite

B. Brass, cast iron, mild steel and tin

C. Aluminium, copper, high silicon iron

D. Silicone rubber, teflon, porcelain and wood

7. In drop forging process, the forging is done by dropping the _____________ at high velocity?
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A. Hammer

B. Workpiece

C. Die with hammer

D. Weight on hammer

8. Lead_________________?
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A. Cannot be scratched by finger nails

B. Is the lightest metal in common use

C. Cannot be work hardened

D. Is the hardest metal in common use

9. Carbon percentage in medium carbon steel is around__________________?
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A. 1 to 1. 5

B. 0.35 to 0.5

C. 0.1 to 0.35

D. 0.8 to 1.4

10. Interchain forces are the weakest in case of________________?
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A. Plastics

B. Fibres

C. Elastomers

D. Both rubber & elastomers
11. Which one is remelted and poured into moulds to get cast iron ?
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A. Low carbon steel

B. Mild steel

C. Pig iron

D. Wrought iron

12. Nickel made/clad equipments are suitable for handling________________?
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A. Ammonia (both aqueous & anhydrous)

B. Fruit juices, milk & its products and caustic soda solution

C. Nitric acid & hydrochloric acid (concentrated)

D. Sulphuric acid (concentrated)

13. The preferred material of construction for storage tanks for 98% sulphuric acid is_________________?
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A. Mild steel

B. Aluminium

C. Stainless steel 316

D. Lead
14. Which of the following alloys does not contain nickel ?
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A. Monel

B. Babbitt metal

C. Inconel

D. Chlorinet 2 alloy

15. Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of___________________?
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A. Zircaloy

B. Concrete

C. Steel

D. Graphite

16. Which of the following heat treatment processes is used for softening the hardened material ?
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A. Tempering

B. Normalising

C. None of these

D. Annealing

17. Pick out the wrong statement?
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A. Crane hooks are normally made of wrought iron

B. perature

C. The toughness of a material decreases, when it is heated

D. Cold working of a metal decreases its fatigue strength

E. The temperature at which new grains are formed in a metal is known as the recrystallisation

18. The fermenter used for the production of ethyl alcohol from molasses is made of________________?
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A. Concrete

B. Copper bearing steel

C. Wood

D. Porcelain

19. Pick out the correct statement?
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A. Plastic deformation of a material is its temporary distortion under the action of applied stress

B. Rusting of iron is not electrochemical in nature

C. Stainless steel is nothing but chromium coated steel

D. Hardening of a soft metal can be done by alloying it with another metal or non-metal
20. An elastic behaviour of materials is expressed in terms of_______________?
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A. Stress-strain curve

B. None of these

C. Relaxation time

D. Hysteresis loop area