Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 25 of 48)

Attempt Materials and Construction Quiz
Balls in a ball mill are usually made of__________________?
A. Steel
B. Cast iron
C. Stainless steel
D. Bronze
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In the Kraft (sulphate) process for the paper manufacture, the digestor is made of________________?
A. Cast iron
B. Stainless steel
C. Karbate carbon
D. Wrought iron
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Galvanising (i.e., zinc coating) of steel sheets is done to______________________?
A. Prevent its rusting by contact with corrosive atmosphere
B. Protect the base metal by cathodic protection
C. Both a. & b.
D. Neither a. nor b.
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A bearing metal should not have___________________?
A. Enough plasticity
B. Low thermal conductivity
C. Low co-efficient of friction
D. High toughness
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100% H2SO4 at 30°C can’t be stored in a vessel made/lined with ___________________?
A. Cast iron and high silicon iron
B. Mild steel and stainless steel
C. Aluminium, tin and rubber
D. Teflon, glass and porcelain
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Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of ______________ as mercury does not amalgamate with it?
A. Copper
B. Copper alloys
C. Stainless steel
D. Monel
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Which of the following is not a non-ferrous alloy ?
A. Meehanite
B. Magnalium
C. Gun metal
D. Muntz metal
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Which of the following is a light alloy ?
A. Monel metal
B. Dow metal
C. German silver
D. Babbitt metal
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Generally _____________ are subjected to galvanising (i.e., zinc coating)?
A. Non-ferrous metals
B. Non-metals
C. Low carbon steels
D. Stainless steel
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18-4-1 high speed steel contains 18%, 4% and 1% respectively of____________________?
A. Tungsten, vanadium and chromium
B. Tungsten, chromium and vanadium
C. Vanadium, chromium and tungsten
D. Chromium, tungsten and vanadium
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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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