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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

In saturated gas, the__________________?
A Vapour is in equilibrium with the liquid at the gas temperature
B Vapour is in equilibrium with the liquid at the room temperature
C Partial pressure of vapour equals the vapour pressure of the liquid at room temperature
D None of these
Correct Answer: Vapour is in equilibrium with the liquid at the gas temperature
Which of the following remains constant during sensible cooling process ?
A Specific humidity
B Partial pressure of vapour
C Both A. and B.
D Neither A. nor B.
Correct Answer: Both A. and B.
For contacting a highly soluble gas with a liquid ____________________?
A Bubble the gas through liquid
B Spray the liquid on gas stream
C Either A. or B. would suffice
D None of these
Correct Answer: Bubble the gas through liquid
The assumption made in Elis method in distillation is that enthalpy concentration lines of vapor and liquid are __________________?
A Parallel
B Straight
C Both parallel and straight
D Neither parallel nor straight
Correct Answer: Both parallel and straight
Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in ____________________?
A Viscosity with concentration
B Degree of ideality of the solution
C Both A. and B.
D Neither A. nor B.
Correct Answer: Both A. and B.
Which one occupies the lowermost position in the electromotive series of metals ?
A Aluminium
B Noble metals (Ag, Pt, Au)
C Zinc
D Alkali metals (K, Na, Li)
Correct Answer: Noble metals (Ag, Pt, Au)
Ferric stainless steels compared to austenitic stainless steels________________?
A Have lower corrosion resistance
B Are harder to fabricate
C Are less ductile and hence less suitable for cold pressing
D All A., B. and C.
Correct Answer: All A., B. and C.
Reduction in the grain size reduces the _______________ of the material?
A Fatigue resistance
B Tensile strength
C Creep resistance
D All A., B. & C.
Correct Answer: Creep resistance
______________ iron is produced, when molten pig iron is allowed to cool gradually?
A White cast
B Grey cast
C Wrought
D None of these
Correct Answer: Grey cast
Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with__________________?
A Acidic refractory
B Rubber
C Karbate
D Lead or acid-proof bricks
Correct Answer: Lead or acid-proof bricks
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