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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

The gas which contributes maximum to the heating value of natural gas is __________________?
A CO
B CO2
C H2
D CH4
Correct Answer: CH4
To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in___________________?
A Shallow and small piles
B Fine sizes without the presence of any lump
C Closed space without any ventilation facility
D Large heaps with small surface to volume ratio
Correct Answer: Shallow and small piles
Washing of coal decreases its_________________?
A Caking index
B Mineral matter content
C Ash content
D Both B. and C.
Correct Answer: Mineral matter content
In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by__________________?
A Cuprous chloride
B Potassium hydroxide
C Alkaline pyrogallol solution
D None of these
Correct Answer: Cuprous chloride
In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of__________________?
A Transportation of coal
B Drying of coal
C Combustion of coal by supplying it around the burner
D Preheating the primary air
Correct Answer: Combustion of coal by supplying it around the burner
_____________ of the coal is the basis for Seylor’s coal classification?
A Proximate analysis
B Ultimate analysis
C Caking index
D Calorific value
Correct Answer: Ultimate analysis
The shift conversion reaction taking place during water gas manufacture is given by__________________?
A C + H2O ↔ CO + H2
B C + 2H2O ↔ CO2 + 2H2
C CO + H2O ↔ CO2 + H2
D None of these
Correct Answer: CO + H2O ↔ CO2 + H2
Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is __________________?
A H2
B CH4
C CO2
D N2
Correct Answer: CH4
Caking index of a coal is a measure of its _______________________?
A Abradability
B Reactivity
C Agglutinating (binding) properties
D Porosity
Correct Answer: Agglutinating (binding) properties
C/H ratio is the maximum in case of_________________?
A Coal
B Furnace oil
C Natural gas
D Naphtha
Correct Answer: Coal
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