Chemical Engineering MCQs

6108 MCQs  (Page 458 of 611)

Attempt Chemical Engineering Quiz
Constantan used in thermocouples is an alloy of___________________?
A. Iron & copper
B. Copper & aluminium
C. Lead & tin
D. None of these
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Nickel and molybdenum are the basic constituents of___________________?
A. Hastelloy
B. German silver
C. Inconel
D. Solder
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Carbon is present in the uncombined (graphitic) form in case of__________________?
A. Cast iron
B. Steel
C. Ferroalloy
D. None of these
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Molybdenum steels containing 0.15 to 0.40% molybdenum___________________?
A. Are prone to temper brittleness
B. Are used for automobile parts like gears, axle, shaft, bearings etc.
C. Have very poor fatigue resistance
D. Do not contain nickel or chromium or both
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The presence of impurities in iron_________________?
A. Increases its melting point
B. Does not affect its melting point
C. Decreases its melting point
D. Makes it malleable
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Hardest materials so far found is_________________?
A. Diamond
B. Graphite
C. Carborundum
D. Pumice stone
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Ball bearings are generally made of___________________?
A. Plain carbon steel
B. Chrome carbon steel
C. Stainless steel
D. Malleable cast iron
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Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property ?
A. Silicon
B. Phosphorus
C. Sulphur
D. None of these
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Fatigue failure of a material may occur, when it is subjected to _____________ stress?
A. Fluctuating
B. Tensile
C. Compressive
D. Torsion
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Rotary driers are generally made of_______________?
A. Cast iron
B. Mild steel
C. High silicon iron (14% si)
D. Tin lined with refractory bricks
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
2021:00:00

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