Chemical Engineering MCQs

6108 MCQs  (Page 63 of 611)

Attempt Chemical Engineering Quiz
Cold chisel & hammers are made of_________________?
A. High speed steel
B. High carbon steel
C. Forged steel
D. Mild steel
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Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
A. E = 2g (1 + v)
B. E = g (1 + v)
C. E = g (1 + v)/2
D. E = 2g (1 + 2v)
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The cathode in an electrochemical cell always carries____________________?
A. Negative charge
B. Positive charge
C. Zero charge
D. Positive or negative charge depending upon the nature of the cell
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Multistage compression of air as compared to single stage compression offers the advantage of______________?
A. Power saving per unit weight of air delivered
B. Mositure elimination in the inter-stage cooler
C. Increased volumetric efficiency
D. All a , b. & c.
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_________________ can replace tungsten in high speed steel ?
A. Chromium
B. Vanadium
C. Cobalt
D. Molybdenum
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In electrical resistance welding, distortion results from the use of improper________________?
A. Clamping methods
B. Electrodes
C. Current
D. Filler material
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Addition of ____________________ to steel does not help in improving its machinability?
A. Sulphur
B. Silicon
C. Lead
D. Phosphorous
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Dew point temperature always gives an indication of the __________________ of the moist air ?
A. Dryness
B. Mositure content
C. Coolness
D. Latent heat
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The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system_________________?
A. Is as light as possible
B. Has very high c.o.p.
C. Employs minimum quantity of refrigerant
D. Consumer minimum horse power
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Consumable electrodes are used in the ____________________ welding?
A. Gas
B. Arc
C. Thermit
D. Resistance
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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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