Chemical Engineering MCQs

6108 MCQs  (Page 31 of 611)

Attempt Chemical Engineering Quiz
Sudden fall of atmospheric pressure by a large amount is an indication of the_____________________?
A. Rain
B. Cold wave
C. Storm
D. Fair weather
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_____________________ of grey cast iron produces white cast iron?
A. Tempering
B. Rapid heating
C. Rapid cooling
D. Slow cooling
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Stainless steel is welded with difficulty because of____________________?
A. Its high melting temperature
B. Chances of cracking
C. Oxide film formation
D. Chromium carbide formation
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The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding _______________ grinding wheel is normally used ?
A. Hard
B. Soft
C. Silicon carbide
D. Aluminium oxide
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What is the value of entropy at 273°K ?
A. 0
B. 1
C. ∞
D. None of these
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Vernier calipers cannot be used to measure the______________________?
A. I.d. & o.d. of the shaft
B. Thickness of parts
C. Depth of holes
D. Clearance between two mating surfaces
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Powder metallurgy process does not make metal powder by_________________________?
A. Atomisation
B. Grinding/milling
C. Hammering
D. Electrolytic deposition
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With increase in steam pressure, its specific volume decreases ____________________?
A. Rapidly first and then slowly
B. Linearly
C. Slowly first and then rapidly
D. Exponentially
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Wrought iron is not____________________?
A. Ductile & resistant to corrosion/rusting
B. Weldable easily
C. Having uniform strength in all directions
D. Having maximum tensile strength along the lines of slag distribution
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Cast iron contains ____________________ percent carbon?
A. 2.5
B. 3.75
C. 4.75
D. 5.25
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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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