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.

For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid ?
A Kozeny-Carman equation
B Leva’s equation
C Blake-Plummer equation
D None of these
Correct Answer: Kozeny-Carman equation
During the washing of cake_________________?
A All the resistances are constant
B Filter medium resistance increases
C Filter medium resistance decreases
D Cake resistance decreases
Correct Answer: All the resistances are constant
_____________ mills are termed as impactors?
A Hammer
B Cage
C Rolling-compression
D None of these
Correct Answer: Hammer
For coarse reduction of hard solids, use ____________________?
A Impact
B Attrition
C Compression
D Cutting
Correct Answer: Compression
Which of the following equations is Rittinger’s crushing law? (Where P = power required by the machine, m = feed rate, k = a constant, D̅ sa & D̅ sb = volume surface mean diameter of feed & product respectively) ?
A P/m = K/ √Dp
B P/m = K . ln D̅ sa/D̅ sb
C P/m = K . (1/ D̅ sb – 1/D̅ sa)
D None of these
Correct Answer: P/m = K . (1/ D̅ sb – 1/D̅ sa)
______________ mill is not a revolving mill ?
A Pebble
B Compartment
C Cage
D Tube
Correct Answer: Cage
The crushed material received for separation is called feed or_________________?
A Tailing
B Heading
C Concentrate
D Middling
Correct Answer: Heading
A filter press is___________________?
A A batch filter
B Not suitable, if the liquid is the main product
C Having prohibitively high maintenance cost
D Not suitable for wide range of materials under varying operating conditions of cake thickness
Correct Answer: A batch filter
About 2-3 hp, power per gallon of a thin liquid provides vigorous agitation in an agitator. ‘Power number’ in agitation is given by __________________?
A P. gc/n3. D2. ρ
B P. gc. ρ/μ2
C n3. D3. ρ/P. gc
D P. gc/n2. D2. ρ
Correct Answer: P. gc/n3. D2. ρ
Pick out the material having minimum Rittinger’s number?
A Calcite
B Pyrite
C Quartz
D Galena
Correct Answer: Quartz