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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

A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the ‘carpet loss’. The carpet loss may be of the order of ______________ cms?
A 1 to 2
B 3 to 4
C 5 to 15
D 20 to 40
Correct Answer: 5 to 15
A fuel with high heat release rate will_________________?
A Require smaller combustion chamber
B Have high calorific value
C Have high adiabatic flame temperature
D None of these
Correct Answer: Require smaller combustion chamber
The pyrogallol solution used in Orsat apparatus can absorb_________________?
A Only O2
B Both O2 and CO2
C Both O2 and CO
D All CO, CO2, and O2
Correct Answer: Both O2 and CO2
In low temperature carbonisation of coal as compared to high temperature carbonisation _____________ produced is less?
A Difference in gross & net calorific value of the coke oven gas
B Free carbon content in tar
C Yield percentage of coke
D Yield of ammonia present in coke oven gas
Correct Answer: Difference in gross & net calorific value of the coke oven gas
Percentage of nitrogen in blast furnace gas may be around__________________?
A 5
B 25
C 55
D 80
Correct Answer: 5
Coal tar (produced by high temperature carbonization) is the main source of_________?
A Aromatic compounds
B Aliphatic compounds
C Paraffins
D Olefins
Correct Answer: Aromatic compounds
White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is_______?
A Tar
B Sulphide Coke
C Coke Oven Gas
D Pulverised coke
Correct Answer: Coke Oven Gas
Pick out the wrong statement ?
A LPG is also used as fuel for automobiles & small furnaces and for cutting & welding of
B The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn,
C Each ton of petroleum oil on distillation produces about 30-50 Nm3 of gas
D Maximum yield of naphthalene is obtained on distillation of crude oil
Correct Answer: The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn,
Pick out the wrong statement ?
A High concentration of oxygen in flue gas means high stack loss
B Gaseous fuels require the least % excess air for complete combustion
C The ratio of fixed carbon to volatile matter percentage in coal is called its ‘fuel ratio’
D Calorific value of natural gas is more than that of LPG
Correct Answer: Calorific value of natural gas is more than that of LPG
Pick the odd man out?
A Briquettes
B Wood
C Oil gas
D Pitch creosote mixture
Correct Answer: Wood
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