Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 12 of 48)

Attempt Materials and Construction Quiz
Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70% ?
A. Cast iron
B. Steel
C. Nickel
D. Karbate
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Carbon content in steel is ___________________ percent?
A. 0.1-2
B. 4-6
C. 2-4
D. 0.001-0.01
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Hastelloy comprises of____________________?
A. Copper and tin
B. Copper and nickel
C. Molybdenum and nickel
D. Lead and tin
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Muntz metal is a/an alloys of____________________?
A. Magnesium & tin
B. Ferrous material
C. Lead & tin
D. Copper & zinc
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Presence of even very minute amount (say 0.1%) of ______________ in copper, reduces its electrical conductivity very seriously?
A. Bismuth
B. Arsenic
C. Antimony
D. Both b. and c.
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Which of the following metals in not used for coating of the base metal to guard it against corrosion ?
A. Lead
B. Cadmium
C. Magnesium
D. Aluminium
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_____________ moulding process cannot be used for thermoplastic plastics?
A. Compression
B. Extrusion
C. Injection
D. None of these
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Cast iron compared to steel is better in__________________?
A. Ductility
B. Fluidity & castability
C. Strength
D. Malleability
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Which of the following is the most prone to atmospheric corrosion ?
A. Silver
B. Iron
C. Tin
D. Copper
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Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is _____________ percent?
A. 0.02
B. 0.2
C. 0.35
D. 0.5
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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