Chemical Engineering MCQs

6108 MCQs  (Page 58 of 611)

Attempt Chemical Engineering Quiz
Fine grained steels have____________________?
A. High brittleness
B. Higher tendency to distort
C. High ductility
D. None of these
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Consideration of the creep is the most important in case of the_____________________?
A. Blades of gas turbine
B. Piston of an i. c. engine
C. Flywheel of steam engine
D. Cycle chain
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Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used ?
A. Vapour locking
B. Hot starting
C. Spark plug fouling
D. All a, b & c
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When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively____________________?
A. Decreases & increases
B. Increases & increases
C. Increases & decreases
D. Decreases & decreases
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A 2 kg object weighs 1.8 kgf on a spring balance. The value of ‘g’ at that location in m/sec2 is___________________?
A. 8.82
B. 9.81
C. 10.88
D. 0.95
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The product of a commercial direct reduction process is___________________?
A. Liquid iron
B. Solid iron
C. Sponge iron
D. Iron saturated with carbon
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Preheating before welding is done to____________________?
A. Make the plate softer
B. Burn oil & grease sticking to plate surfaces
C. Avoid plate distortion
D. Prevent cold cracks
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Most important property of steels for use in automobile bodies is the___________________?
A. Formability
B. Yield strength
C. Toughness
D. Resilience
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Which of the following are considered applications of ultrasonic testing ?
A. Determination of elastic constant
B. Detection of defects in metal
C. Measurement of material thickness
D. None of the above
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Temperature attained in soldering of metals is about ________________ °C?
A. 150-300
B. 400-500
C. 650-800
D. 1000-1100
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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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