chemical engineering MCQs – Page 352

Practise multiple-choice questions from chemical engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering Mcqs
7021. In hot wire anemometer used for gas flow measurement, the wire is normally made of ______________________?
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A. Chromium

B. Constantan

C. Copper

D. Platinum
7022. Cold worked steel parts are normally subjected to_________________?
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A. Normalising

B. Annealing

C. Hardening

D. Shot peening

7023. Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as_____________________?
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A. Sherardizing

B. None of these

C. Anodising

D. Parkerising

7024. ____________ alloys have the highest specific strength of all the structural materials out of the following?
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A. Magnesium

B. Chromium

C. Magnetic steel

D. Titanium
7025. Polymerisation reactor used for the production of styrene butadiene rubber (SBR) is made of__________________?
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A. Cast iron

B. Stainless steel or glass lined vessel

C. Karbate

D. Wrought iron

7026. Percentage elongation of a material is a measure of its _______________________?
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A. Malleability

B. Ductility

C. Brittleness

D. Toughness

7027. Babbitt metal is not a___________________________?
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A. Pure metal

B. Lead base alloy

C. Tin base alloy

D. White metal

7028. Urea autoclave is made of_________________?
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A. Refractory blocks

B. Cast iron

C. Stainless steel

D. Lead lined steel

7029. The softest material in Mhos scale (for measuring hardness) is________________?
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A. Talc

B. None of these

C. Rubber

D. Gypsum

7030. Silicone rubber is not resistant to the corrosive action of____________________?
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A. Sulphuric acid (10%)

B. Sulphuric acid (95%)

C. Ether

D. Both B. and C.
7031. 18/8 steel is a/an __________ stainless steel ?
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A. Austenitic

B. Ferritic

C. None of these

D. Martensitic

7032. Specify the material of construction suitable for handling concentrated HNO3 at 100C ?
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A. Tin and wood

B. High silicon iron, Kel-F and Teflon

C. Silicone rubber

D. Stainless steel

7033. Hydrochloric acid is _______________ corrosive to common metals?
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A. Least

B. Mildly

C. Highly

D. Not

7034. Babbitt metals used for making bearings are _________________?
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A. Yellow metals

B. Short of antifrictional properties

C. Having homogenous microstructure

D. Tin or lead based alloys
7035. Which of the following is a light alloy ?
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A. Monel metal

B. Dow metal

C. Babbitt metal

D. German silver

7036. Tempering of steel is done to make it_________________?
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A. Brittle

B. Hard

C. Soft

D. Rollable

7037. Nickel and copper are the basic constituents of__________________?
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A. Monel metal

B. Hastelloy

C. Inconel

D. German silver

7038. Brine (15% concentration) can be stored in a vessel made of____________________?
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A. None of these

B. Karbate

C. Cast iron

D. Monel
7039. The main constituent of carborundum is ___________________ carbide?
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A. Silicon

B. Aluminium

C. Calcium

D. Boron

7040. The most resistant material to alkaline corrosion is____________________?
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A. Karbate

B. Nickel

C. Aluminium

D. Duriron