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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 coke oven gas is around ______________ Kcal/Nm3?
A 900
B 4200
C 7500
D 2000
Correct Answer: 4200
Caking index of coal blend used for blast furnace coke making is about_________________?
A 8
B 12
C 22
D 36
Correct Answer: 22
A coal with high ash content___________________?
A Has higher calorific value
B Is harder and stronger
C Is not subjected to washing
D Has low quantity of mineral matter
Correct Answer: Is harder and stronger
Which of the following is not a binder for coal briquetting ?
A Coal tar
B Bitumen
C Molasses
D None of these
Correct Answer: None of these
Coking time in beehive coke oven is about ___________________?
A 12 hours
B 2-3 days
C One week
D Two weeks
Correct Answer: 2-3 days
Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature ?
A Calorific value of the fuel
B Flame temperature achieved
C Speed of combustion of fuel
D Heat transfer rate to the stock in the furnace
Correct Answer: Calorific value of the fuel
The heat of combustion of a fuel___________________?
A Is equal to the heat of formation
B Is always negative
C Can’t be known without calculating it
D Is always positive
Correct Answer: Is always negative
KOH solution used in Orsat apparatus absorbs____________________?
A CO2
B SO2
C Both A. & B.
D Neither A. nor B.
Correct Answer: Both A. & B.
In high temperature carbonisation of coal compared to low temperature carbonisation ?
A Yield of ammonia is less
B Aromatic content of tar is low
C H2 content in the coke oven gas is more
D Calorific value of the coke oven gas is lower
Correct Answer: H2 content in the coke oven gas is more
Presence of free moisture in coal during its high temperature carbonisation _____________________?
A Reduces the coking time
B Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot
C Increases the loss of fine coal dust from the ovens when charging
D None of these
Correct Answer: Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot
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