Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 8 of 48)

Attempt Materials and Construction Quiz
Lead pipes are not safe for carrying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)2. Lead pipes are readily corroded by___________________?
A. Dilute hcl
B. Acetic acid
C. Concentrated h2so4
D. None of these
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Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system ?
A. High silicon iron, silicon rubber, kel-f and teflon
B. Mild steel and stainless steel
C. Cast iron, tin and aluminium
D. Copper, nickel and monel
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Beehive coke ovens are made of ________________ bricks?
A. Silica
B. Fireclay
C. Silicon carbide
D. Corundum
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_____________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working?
A. Solid solution hardening
B. Screw dislocation
C. Strain ageing
D. Twinning
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Presence of nitrogen in steel___________________?
A. Makes it brittle
B. Increases its strength
C. Increases its hardness
D. Is desirable
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Among the tin containing alloys, ______________ consumes the maximum amount of tin?
A. Solder
B. White metal
C. Pewter metal
D. Bronzes
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Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of__________________?
A. Stainless steel or glass lined steel
B. Nickel clad steel
C. High silicon cast iron
D. Aluminium
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Which of the following finds the least commercial use ?
A. Pure iron
B. High silicon iron
C. Low carbon steel
D. High carbon steel
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German silver is an alloy of copper, nickel and________________?
A. Zinc
B. Silver
C. Tin
D. Lead
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Nitriding of steel is a process for________________?
A. Case hardening
B. Spheroidising
C. Normalising
D. Annealing
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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