Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 6 of 48)

Attempt Materials and Construction Quiz
Ferric stainless steels compared to austenitic stainless steels________________?
A. Have lower corrosion resistance
B. Are harder to fabricate
C. Are less ductile and hence less suitable for cold pressing
D. All a., b. and c.
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Which one occupies the lowermost position in the electromotive series of metals ?
A. Aluminium
B. Noble metals (ag, pt, au)
C. Zinc
D. Alkali metals (k, na, li)
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‘Semi steel’ is__________________?
A. Produced by adding 10-20% steel to the cupola charge
B. Stronger than cast iron
C. Both a. and b.
D. Neither a. nor b.
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How many molecules per unit cell are there in a face centred cubic lattice ?
A. 2
B. 4
C. 6
D. 8
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Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the ______________ stress?
A. Ultimate
B. Yield point
C. Proof
D. None of these
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_______________ is a donor impurity for semi-conductors ?
A. Boron
B. Antimony
C. Gallium
D. None of these
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Caustic soda is transported in _____________ lined containers ?
A. Glass
B. Nickel
C. Neoprene
D. Either b. or c.
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When iron is rusted, it is__________________?
A. Converted to a fine powder
B. Reduced
C. Oxidised
D. None of these
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High speed steel tools retain their hardness upto a temperature of _____________ °C?
A. 500
B. 750
C. 900
D. 1100
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Post weld heat treatment is done by____________________?
A. Normalising
B. Stress relieving
C. Tempering
D. Solution annealing
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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