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.

During coking of coal, the ash content (percentage)________________?
A Increases
B Decreases
C Remain constant
D None of these
Correct Answer: Increases
Stack (chimney) height in a big thermal power plant is dictated by the___________________?
A Pollution control aspect
B Draught to be created
C Limitation of constructional facilities
D None of these
Correct Answer: Draught to be created
The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called ?
A Fire point
B Smoke point
C Burning temperature
D Kindling temperature
Correct Answer: Burning temperature
Ash content in the coke produced from a coking coal having 20% ash may be around _____________ percent?
A 6
B 12
C 18
D 24
Correct Answer: 24
The calorific value is the highest out of the following for__________________?
A Producer gas
B Water gas
C Coke oven gas
D Blast furnace gas
Correct Answer: Coke oven gas
A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon _________________?
A Is less liable to spontaneous combustion on storage
B Is more difficult to ignite and produces a shorter flame
C Requires smaller combustion space and less secondary air
D None of these
Correct Answer: None of these
Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an ______________ bed gasifier?
A Entrained
B Moving
C Fixed
D Fluidised
Correct Answer: Entrained
Ionisation potential applied across the electrodes of electrostatic tar precipitator is around_____________________?
A 230 V AC
B 60 KV AC
C 230 V DC
D 60 KV DC
Correct Answer: 60 KV DC
Coal tar (produced by high temperature carbonisation) is the main source of_________________?
A Aromatic compounds
B Aliphatic compounds
C Paraffins
D Olefins
Correct Answer: Aromatic compounds
Hard coke is manufactured from___________________?
A Lignite
B Bituminous coal
C Semi-anthracite
D Anthracite
Correct Answer: Bituminous coal