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.

Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the ________________ of coal?
A Hydrogenation
B Gasification
C Carbonisation
D None of these
Correct Answer: Hydrogenation
Fussain _____________________?
A Is friable, charcoal like substance
B Has highest fixed carbon and lowest volatile matter content of all the four banded components
C Is non-coking, but when blended with highly coking coal, controls its swelling and produces
D All A., B. and C.
Correct Answer: All A., B. and C.
Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is _______________ percent?
A 71%
B
C In between 37 & 71%
D None of these
Correct Answer: 71%
Quantity of coke produced from metallurgical coal may be around _____________ percent?
A 30
B 50
C 75
D 95
Correct Answer: 75
The liquid used for the washing of coal in an industrial coal washery is a mixture of water and ____________________?
A Carbon tetrachloride
B Sand (40%)
C Mineral oil of high viscosity & specific gravity (1.6)
D None of these
Correct Answer: Sand (40%)
Which of the following constituents of coal is the most important in the production of coke ?
A Moisture
B Ash
C Volatiles
D Carbon
Correct Answer: Carbon
The combustion reaction, C + O2 = CO2, is ___________________?
A Exothermic
B Endothermic
C Autocatalytic
D None of these
Correct Answer: Exothermic
Orsat apparatus is meant for ___________________?
A Gravimetric analysis of flue gas
B Finding out combustion efficiency
C Direct determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride
D None of these
Correct Answer: None of these
Yield of coke oven gas in low temperature carbonisation of coal is about ______________ Nm3 /ton of dry coal?
A 60
B 160
C 500
D 750
Correct Answer: 60
Blast furnace gas burns with a bluish flame, because of the presence of____________________?
A CO
B CH4
C CO2
D S
Correct Answer: CO