Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 13 of 48)

Attempt Materials and Construction Quiz
_____________ iron is produced, when molten pig iron is chilled suddenly?
A. White cast
B. Grey cast
C. Wrought
D. None of these
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Tin coating on metals is not done by_____________________?
A. Spraying
B. Powder metallurgy
C. Hot dipping
D. Electro-deposition
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Metalloid is_______________________?
A. An element, which exhibits the properties of both metal & non metal
B. Highly electronegative in nature
C. An alloy
D. All a., b. & c.
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Gun metal is an alloy of_________________________?
A. Nickel, tin and copper
B. Copper, tin and zinc
C. Copper, phosphorus and nickel
D. Manganese, phosphorus and nickel
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Polymorphism is not exhibited by______________________?
A. Carbon
B. Iron
C. Phosphorous
D. None of these
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Carbon is present in the combined form (carbide) in case of______________________?
A. Pig iron
B. Steel
C. Ferroalloys
D. All a., b. & c.
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The hardest material just prior to diamond in Mhos scale is_________________?
A. Topaz
B. Carborundum
C. Corundum
D. Calcite
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Corrosion resisting properties of cast iron are significantly improved by the addition of 12 – 15% of___________________?
A. Tungsten
B. Vanadium
C. Silicon
D. All a., b. & c.
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Which of the following is not an alloy of copper ?
A. Muntz metal
B. Admiralty gun metal
C. German silver
D. Pewter metal
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Which of the following crystal structures characterises the ferritic stainless stee l?
A. Face centred cubic
B. Body centred cubic
C. Simple hexagonal
D. None of these
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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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