chemical engineering materials and construction MCQs – Page 13

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 Review each marked answer and report any item that may be outdated or unclear.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
241. Hypersil is a ______________ steel?
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A. High speed

B. Silicon

C. Tungsten

D. Molybdenum

242. Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is ______________________?
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A. Not helpful in producing cleaner steel due to oxidising action of vanadium

B. Used for making axle & shafts of aeroplanes, automobiles and locomotives

C. Having poor toughness

D. Having poor fatigue resistance

243. _____________ steel is widely used for the manufacture of motor car crankshafts?
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A. Silicon

B. High speed

C. Chrome

D. Nickel

244. Bronze is an alloy of copper and _________________?
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A. Lead

B. Zinc

C. Nickel

D. Tin
245. Acetaldehyde is shipped in ____________ drums?
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A. Cast iron

B. Aluminium

C. Steel

D. Either B. & C.
246. Which of the following contains maximum percentage of carbon ?
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A. Railway spring steel

B. Saws for cutting steel

C. Boiler plate steel

D. Rail steel

247. The material of construction of pressure mills used for squeezing out the juice from sugar cane is__________________?
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A. Cast iron

B. Mild steel

C. Monel

D. Stainless steel

248. Ability of a material to ______________ is indicated by its damping capacity?
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A. Absorb vibration

B. Withstand compression

C. None of these

D. Absorb shock

249. Which of the following has the highest compressive strength ?
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A. Wrought iron

B. High carbon steel

C. Cast iron

D. Mild steel

250. Ball bearings are generally made of___________________?
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A. Malleable cast iron

B. Plain carbon steel

C. Chrome carbon steel

D. Stainless steel

251. Rubber lined vessels are corroded by the action of__________________?
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A. Chloroform

B. All A., B. and C.

C. Aqua regia

D. Sulphuric acid (95%)

252. Lead alone is not used in storing equipment, because it________________?
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A. Is having low creep strength

B. Is very costly

C. Corrodes easily

D. None of these

253. Austenitic manganese steel used for making jaws of crushing machines contains about ______________ percent manganese?
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A. 12-14

B. 1.5-2

C. 9-Jul

D. 3.5-4.5

254. Presence of nickel in steel improves its_________________?
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A. Cutting ability

B. Corrosion resistance

C. Wear resistance

D. All A., B. and C.

255. Pick the odd man out of the following?
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A. Nitriding

B. Cyaniding

C. Calorising

D. Pack carburising

256. Ceramic recuperators are generally made of_________________?
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A. Silicon carbide

B. High alumina bricks

C. Calcium carbide

D. Fireclay bricks

257. Creep is not exhibited at low temperature by _____________________?
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A. Plastics

B. Lead

C. Acrylics

D. Rubber

258. Mild steel is used for making___________________?
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A. Drop forging

B. Channels

C. Die block

D. Fish plates

259. Ceramic materials__________________?
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A. All A., B. and C.

B. Are exemplified by clay and mica

C. Never exhibit polymorphism

D. Are poor electrical conductors due to lack of free electrons

260. Dielectric strength of a material is____________________?
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A. Its capacity to withstand high voltage

B. A magnetic property

C. Its capacity to resist the flow of current

D. Its energy storage capacity