Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 41 of 48)

Attempt Materials and Construction Quiz
Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is ______________________?
A. Used for making axle & shafts of aeroplanes, automobiles and locomotives
B. Having poor fatigue resistance
C. Having poor toughness
D. Not helpful in producing cleaner steel due to oxidising action of vanadium
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The most commonly used resin for making reinforced plastic is___________________?
A. Unsaturated polyester
B. Polypropylene
C. Polyurethane
D. Nylon-6
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Cast iron has____________________?
A. High ductility
B. High malleability
C. Very high tensile strength
D. Its elastic limit very close to ultimate breaking strength
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Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its___________________?
A. High strength to weight ratio
B. Low temperature strength properties
C. Its ability to be cast, rolled, forged & stamped
D. High strength and corrosion & oxidation-resistance at elevated temperature
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H2SO4 (< 50% concentration) is corrosive to_________________?
A. Aluminium, mild steel, stainless steel, concrete & tin
B. Copper, cast iron & high silicon iron (14% si)
C. Rubber (butyl and hard), silicone rubber & teflon
D. Glass, graphite, porcelain & stoneware
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‘Hypersil’ is a ______________ steel?
A. High speed
B. Silicon
C. Molybdenum
D. Tungsten
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Presence of silicon in steel_____________________?
A. Is in the form of free si
B. Indicates that steel is not deoxidised properly
C. Decreases the blow holes formation tendency in castings
D. None of these
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Which of the following is not a nickel based alloy ?
A. Inconel
B. Hastelloys
C. Nimonics
D. Babbitt metal
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Which of the following is an alloy of nickel and copper ?
A. Hastelloy
B. Duriron
C. Monel
D. Inconel
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Fermenter used in the production of penicillin by deep fermentation process is a ______________ lined steel vessel ?
A. Rubber
B. Monel
C. Glass
D. Nickel
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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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