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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

Regenerators are used for waste heat recovery in____________________?
A By-product coke ovens
B Beehive coke oven
C Blast furnace stoves
D Soaking pits
Correct Answer: By-product coke ovens
Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C ?
A 5
B 60
C 20
D 40
Correct Answer: 20
In a muffle furnace, the muffle_________________?
A Retards the heat transfer
B Assists in temperature equalisation in the charge
C Permits the use of controlled atmosphere for the protection of stock
D All A., B. and C.
Correct Answer: All A., B. and C.
Hearth furnaces are not used for____________________?
A Roasting
B Melting
C Reheating
D None of these
Correct Answer: None of these
Decarburisation of steel__________________?
A Is the removal of carbon from iron carbide (Fe3C)
B Affects its crystalline structure
C Is favoured by CO2
D All A., B. and C.
Correct Answer: All A., B. and C.
Maximum heat transfer in high temperature furnaces is by____________________?
A Conduction
B Convection
C Radiation
D Either A., B. or C.; depends on the type of furnace
Correct Answer: Radiation
Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the_________________?
A Quantity & temperature of waste gas
B Dust concentration & nature of dust in waste gas
C Corrosive nature of the waste gas
D All A., B. and C.
Correct Answer: Dust concentration & nature of dust in waste gas
Rate of heat release in a furnace, which is the measure of heat intensity, is defined as_________________?
A kcal/hr/m3 combustion space
B kcal/m3 combustion space
C kcal/hr
D None of these
Correct Answer: kcal/hr/m3 combustion space
Ceramic recuperators compared to metallic recuperators for the same duty_________________?
A Are lighter
B Occupy more space
C Are less costly
D Have higher pressure differential between flue gas & air side
Correct Answer: Occupy more space
Regenerators compared to the recuperators for the same duty__________________?
A Occupy more space
B Are less costly
C Are of smaller size
D All A., B. and C.
Correct Answer: Occupy more space
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