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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

Moisture loss is determined by the _______________________?
A Humidity of combustion air
B Moisture content of fuel
C Both A. and B.
D The water formed by combustion reaction
Correct Answer: Both A. and B.
Coal is heated in absence of air for 7 minutes at a temperature of about ______________ °C, during its volatile matter determination for proximate analysis?
A 550
B 750
C 950
D 1150
Correct Answer: 950
Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces __________________?
A Higher amount of methane
B Lower amount of hydrogen
C Both A. and B.
D Higher amount of both methane and hydrogen
Correct Answer: Both A. and B.
Yield of blast furnace gas is about _______________ Nm3 /ton of pig iron?
A 300
B 2000
C 5000
D 10000
Correct Answer: 2000
Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of__________________?
A Less air for combustion
B Correct amount of air for combustion
C Too much air for combustion
D Pulverised coal in boilers
Correct Answer: Too much air for combustion
Which of the following is a rich fuel gas ?
A Producer gas
B Coal gas from underground gasification of coal
C Refinery gases
D None of these
Correct Answer: Refinery gases
With increases in carbonisation temperature_______________________?
A Coke even gas yield increases
B Tar yield increases
C Hydrogen percentage in the coke oven gas decreases
D Methane percentage in the coke oven gas increases
Correct Answer: Coke even gas yield increases
64-132) rank coal (ASTM) means a coal with 64%___________________?
A Fixed carbon and having a heating value around 13, 200 BTU/1b
B Ash and heating value around 13, 200 BTU/1b
C Fixed carbon and heating value around 132 BTU/1b
D None of these
Correct Answer: Fixed carbon and having a heating value around 13, 200 BTU/1b
A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the_________________?
A Presence of large quantity of hydrogen in the fuel
B Low calorific value of the fuel
C High sulphur content in the fuel
D Lack of thorough mixing of fuel with air
Correct Answer: Lack of thorough mixing of fuel with air
Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant ?
A Ammonium sulphate
B Ammonium nitrate
C Ammonium phosphate
D None of these
Correct Answer: Ammonium sulphate
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