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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

Furnace pressure is normally controlled by regulating the__________________?
A Air pressure
B Fuel gas pressure
C Speed of I.D. fan
D Damper
Correct Answer: Damper
Pick out the wrong statement ?
A Addition of methane to the furnace atmosphere reduces decarburising by hydrogen
B Nitrogen in presence of steam decor-burises high carbon steel, whereas hydrocarbon gases
C Active nitrogen (formed by cracking ammonia at the metal surface) cause nitride formation
D None of these
Correct Answer: None of these
Ostwald charts are meant for__________________?
A Computing the excess/deficiency of combustion air
B Calculation of flue gas temperature
C Computation of flue gas analysis
D None of these
Correct Answer: Computing the excess/deficiency of combustion air
Which of the following furnaces will have maximum thermal efficiency ?
A Soaking pits
B Walking beam reheating furnace
C Boiler furnace
D Rotary kilns
Correct Answer: Boiler furnace
The function of an economiser in a boiler is to preheat the _____________________?
A Feedwater
B Combustion air
C Pulverised coal
D Furnace oil
Correct Answer: Feedwater
Which of the following is not an additive for flue gases from furnace to reduce its dewpoint ?
A Ammonia
B Fine dolomite
C Alkaline powders
D None of these
Correct Answer: None of these
Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of_________________?
A Furnace oil with air
B Furnace oil with oxygen
C Blast furnace gas with air
D Blast furnace gas with oxygen
Correct Answer: Blast furnace gas with air
Fuel economy in an industrial furnace operation cannot be achieved by the use of__________________?
A Stoichiometric combustion air
B Non-preheated combustion air
C Combustion air not enriched with oxygen
D Recuperators
Correct Answer: Stoichiometric combustion air
Which furnace employs preheating, heating and soaking zones ?
A Soaking pit
B Reheating furnace
C Open hearth furnace
D Cupola
Correct Answer: Reheating furnace
Regenerators are normally provided in the____________________?
A Glass melting furnace
B Open hearth furnace
C By product coke ovens
D All A., B. and C.
Correct Answer: All A., B. and C.
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