M C Q s D r i v e

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.

Pearlite comprises of__________________?
A 87% cementite & 13% Fe
B 87% ferrite & 13% cementite
C 93.33% ferrite & 6.67% C
D 87% ferrite & 13% C
Correct Answer: 87% ferrite & 13% cementite
Spheroidising of a material is a/an ________________ process?
A Normalising
B Annealing
C Tempering
D Hardening
Correct Answer: Annealing
_______________ number determines whether the fluid flow in an open channel is super-critical, critical or sub-critical ?
A Mach
B Reynolds
C Froude
D Weber
Correct Answer: Froude
Satellite is a _________________ material?
A Ferrous
B Ceramic
C Cemented carbide
D Non-ferrous cast alloy cutting tool
Correct Answer: Non-ferrous cast alloy cutting tool
Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is___________________?
A Nickel
B Cobalt
C Vanadium
D Platinum
Correct Answer: Platinum
Cascade control is___________________?
A The continuous adjustment of the set point index of an automatic control loop by a primary(master) controller
B Used when changes in process conditions cause serious upsets in the controlled variable
C Useful to control flow from temperature
D All A, B & C
Correct Answer: All A, B & C
For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = – 60000 J . mole-1 . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be__________________?
A 30,000 J
B 60,000 J
C 90,000 J
D 2,40,000 J
Correct Answer: 90,000 J
Hardening of steel is not possible, unless it is heated _________________ critical point ?
A Above the highest
B Above the lowest
C Between the first & second
D Between the second & third
Correct Answer: Above the lowest
Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?
A Slip
B Fracture
C Winning
D Dislocation
Correct Answer: Dislocation
Atomic _________________ of an element is a whole number ?
A Weight
B Number
C Volume
D Radius
Correct Answer: Number