Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 22 of 48)

Attempt Materials and Construction Quiz
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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Acetaldehyde is shipped in ____________ drums?
A. Cast iron
B. Steel
C. Aluminium
D. Either b. & c.
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_____________ is used for examining the macro-structure of a material?
A. Metallurgical microscope
B. Optical microscope
C. X-rays
D. Visual inspection by naked eye
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An alloy of iron containing 4% carbon is called________________?
A. High carbon steel
B. Wrought iron
C. Mild steel
D. None of these
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Zircaloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium_______________?
A. Tin, nickel, iron and chromium
B. And graphite
C. And copper
D. None of these
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Cold work tool steel should have_________________?
A. High toughness
B. Poor hardenability
C. High wear resistance
D. All a., b. & c.
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The softest material in Mho’s scale (for measuring hardness) is________________?
A. Talc
B. Gypsum
C. Rubber
D. None of these
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Alpha iron is stable ______________ °C?
A. Above 1403
B. Upto 910
C. Above 1800
D. Between 910 & 1403
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Wrought iron is ____________________?
A. High carbon iron
B. Highly resistance to acid corrosion
C. Malleable & ductile; and hence is used for chain links, hooks & couplings
D. An alloy of iron, chromium & carbon
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Rubber lined vessels are corroded by the action of__________________?
A. Aqua regia
B. Chloroform
C. Sulphuric acid (95%)
D. All a., b. and c.
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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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