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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

Calorific value of ____________________?
A Light paraffinic fuel oils is equal to that of equivalent olefins
B n-paraffin is lower than that of iso-paraffins of the same compounds
C Light paraffinic fuel oils is higher than that of equivalent olefins
D Light paraffinic fuel oils is lower than that of equivalent olefins
Correct Answer: Light paraffinic fuel oils is higher than that of equivalent olefins
_____________ present in coal is not determined in its ultimate analysis ?
A Fixed carbon
B Total carbon
C Hydrogen
D Nitrogen
Correct Answer: Fixed carbon
Coke made in narrower by-product coke ovens (as compared to wider ovens) is _____________________?
A Less reactive
B Stronger
C Smaller in size
D All A., B. & C.
Correct Answer: All A., B. & C.
Gray King Assay and Swelling Index of a coal is a measure of its ____________________?
A Swelling characteristics
B Abradability
C Agglutinating properties
D Resistance to impact breakage
Correct Answer: Swelling characteristics
Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300°) may be reduced by about ______________ percent as compared to the use of atmospheric combustion air?
A 5
B 10
C 20
D 35
Correct Answer: 20
In low temperature carbonisation of coal, the________________?
A Yield of coke oven gas is 290 Nm3 /ton dry coal
B Volatile matter in coke is zero
C Temperature maintained is 700°C
D Yield of tar is about 3% of dry coal
Correct Answer: Temperature maintained is 700°C
Which of the following is a single stage, fixed bed high pressure coal gasification process ?
A Winkler process
B Kopper-Totzek process
C Lurgi Process
D None of these
Correct Answer: Lurgi Process
Blast furnace gas constitutes mainly of_________________?
A N2 & CH4
B N2 & H2
C N2 & CO
D CH4 & CO2
Correct Answer: N2 & CO
Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO2, 20%CO and 10%O2. The percent excess oxygen used is __________________?
A 20
B 12.5
C 0
D 10
Correct Answer: 0
Washing of coal does not reduce its______________________?
A S & P content
B Heating value
C Fusion point of ash
D None of these
Correct Answer: None of these
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