chemical engineering materials and construction MCQs – Page 18

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 Review each marked answer and report any item that may be outdated or unclear.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
341. Addition of ______________ in steel is helpful in increasing the depth of hardness?
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A. Chromium

B. Sulphur

C. Tungsten

D. Vanadium

342. 18/8 stainless steel means, that it contains__________________?
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A. 18% molybdenum and 8% chromium

B. 18% chromium and 8% nickel

C. 18% nickel and 8% chromium

D. 18% chromium and 8% molybdenum

343. __________________ does not contain copper as an alloying element?
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A. Nichrome

B. Manganin

C. Perminvar

D. Monel metal

344. A magnetic material becomes ____________ above the Curie temperature?
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A. Paramagnetic

B. Diamagnetic

C. None of these

D. Ferromagnetic

345. 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 ?
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A. Copper, nickel and Monel

B. Cast iron, tin and aluminium

C. Mild steel and stainless steel

D. High silicon iron, silicon rubber, Kel-F and Teflon
346. Evaporator used for concentrating tomato juice is made of __________________?
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A. Stainless steel-glass lined

B. Brass

C. Nickel

D. Cast iron-rubber lined

347. The damage/deterioration of metals by the ______________ action of fluids is called erosion?
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A. Abrasive

B. Corrosive

C. Both A. & B.

D. Neither A. nor B.

348. Monel metal is an alloy of__________________?
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A. Molybdenum and zinc

B. Molybdenum and aluminium

C. Molybdenum and nickel

D. Nickel and copper
349. Approximate value of the modulus of elasticity for steel is about _____________ 106kg/cm2?
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A. 2

B. 0.5

C. 40

D. 75

350. Brass container is suitable for storing__________________?
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A. Beer

B. Phosphoric acid (95%)

C. Aqueous ammonia

D. H2SO4 (95%)

351. Hastelloy C is a good material of construction in chemical process industry, since it is ___________________?
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A. Highly corrosion resistant and is readily fabricated

B. Relatively inexpensive although it can be fabricated with some difficulty

C. Light and resists attack by acids

D. Corrosion resistant to most alkalis, particularly because of its copper content

352. Vycor, a widely used material for making thermal wells in temperature measurement, is a_______________?
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A. Cermet

B. Thermosetting plastic

C. Metallic alloy

D. Glass
353. A material is called ductile, if it can be__________________?
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A. Made lustrous by heating it

B. Fractured without deformation

C. Drawn into wires

D. Hammered to a thin sheet

354. Hydrocyanic acid is not shipped in______________?
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A. Monel drums

B. Aluminium containers

C. Cast iron vessels

D. Steel cylinders

355. In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of _______________?
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A. Wood

B. Porcelain

C. Concrete

D. Steel
356. Carbon tetrachloride can be stored in a storage vessel made of________________?
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A. Stainless steel

B. Tin

C. All A., B. and C.

D. High silicon iron (14% Si)

357. Carbon is present in steel wholly in the__________________?
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A. Combined form

B. Free state as graphite

C. Both A. and B.

D. Neither A. nor B.

358. Iron alloyed with carbon upto 2% is called___________________?
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A. Wrought iron

B. High carbon steel

C. Pig iron

D. None of these
359. Clock pendulums are usually made of _______________ steel?
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A. None of these

B. Stainless

C. High speed

D. Heat resisting

360. Biological shield in a nuclear power reactor is made of________________?
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A. Steel

B. Cadmium

C. Concrete

D. Zircaloy