Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 39 of 48)

Attempt Materials and Construction Quiz
Tempering of steel is done to make it________________?
A. Brittle
B. Hard
C. Rollable
D. Soft
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Constantan is an alloy of____________________?
A. Cu (55%) & sn (45%)
B. Cu (55%) & ni (45%)
C. Pt (95%) & rh (10%)
D. Fe (80%) & ni (20%)
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An alloy used as thermocouple material comprises of 40% nickel and 60% copper. It is called____________________?
A. Constantan
B. Kanthal
C. Chromel
D. German silver
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The behaviour of visco-elastic material is time dependent. This behaviour is common in _____________ materials?
A. Non-crystalline solid
B. Crystalline
C. Rubbery
D. Non-crystalline organic polymeric
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A material capable of undergoing large permanent deformation, when subjected to compression is termed as___________________?
A. Malleable
B. Ductile
C. Brittle
D. None of these
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Softness of silver can be converted into hardness by alloying it with small quantity of_________________?
A. Copper & nickel
B. Zinc
C. Aluminium
D. Tin
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Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making________________?
A. Shafts
B. Flanges
C. Gears
D. Shear blades
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Invar used in thermocouples is an alloy of nickel and________________?
A. Iron
B. Copper
C. Chromium
D. Lead
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Hydrochloric acid is _______________ corrosive to common metals?
A. Least
B. Not
C. Mildly
D. Highly
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Gunmetal and bronze are not corroded by the action of__________________?
A. Wet chlorine
B. Synthetic detergent solution
C. Hydrochloric acid (10%)
D. Nitric acid (< 25%)
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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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