Chemical Engineering MCQs

6108 MCQs  (Page 36 of 611)

Attempt Chemical Engineering Quiz
Out of the following, the ________________ pipe has the least corrosion resistance?
A. Mild steel
B. Copper
C. Cast iron
D. Wrought iron
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The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be_______________?
A. Parabolic
B. Hyperbolic
C. Straight line
D. None of these
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Lead is poured into the joints between two ___________________ pipes?
A. Cast iron
B. Steel
C. Concrete
D. Plastic
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Reduction in the grain size reduces the _________________ of the material?
A. Fatigue resistance
B. Tensile strength
C. Creep resistance
D. All a, b. & c
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Wrought iron is never shaped by__________________?
A. Casting
B. Cold working
C. Forging
D. Welding
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Mild steel has _______________ crystal lattice structure?
A. Face centred cubic (fcc)
B. Body centred cubic (bcc)
C. Orthorhombic
D. Cubic
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Diffusion co-efficient of a metal in a solid solution depends upon its ?
A. Composition
B. Temperature
C. Both a. & b.
D. Neither a. nor b.
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The following type of bonding is strongly directional in solids ?
A. Vander waal’s
B. Ionic
C. Metallic
D. Covalent
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Which of the following is not a principal alloying element for the structural steel ?
A. Molybdenum
B. Nickel
C. Manganese
D. Chromium
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Which of the following rays has the least wavelength ?
A. Ultraviolet rays
B. Infrared rays
C. Cosmic rays
D. X-rays
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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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