M C Q s D r i v e

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.

The weakest sound that can be heard by a person in a quiet environment is equivalent to ____________ decibel ?
A 1
B 5
C 10
D 50
Correct Answer: 1
______________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant ?
A Calcium
B Fluorine
C Phosphorous
D Sulphur
Correct Answer: Fluorine
Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by _____________________?
A Chemical coagulation
B Floatation & skimming
C Centrifugation
D Ultra filtration
Correct Answer: Chemical coagulation
Ringelmann chart No. 2 corresponds to _______________ percent black smoke?
A 10
B 20
C 40
D 80
Correct Answer: 40
Global warming may result in __________________?
A Flood
B Cyclone
C Decrease in food productivity
D All A., B. and C.
Correct Answer: All A., B. and C.
Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of_________________?
A Ozone and iodine
B Chlorine or its compounds
C Ultraviolet light for irradiation of water
D All A., B. & C.
Correct Answer: All A., B. & C.
Which of the following is not a practical method of low level radioactive waste disposal ?
A Dilution with inert material
B Discharging to atmosphere through tall stacks after dilution
C Disposing off in rivers & oceans
D Filling in steel crates and shooting it off out of earth’s gravity
Correct Answer: Filling in steel crates and shooting it off out of earth’s gravity
The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________?
A Catalytic conversion
B Green house effect
C Global warming
D Both B. and C.
Correct Answer: Both B. and C.
Which of the following is an adsorbent for removal of nitrogen oxides from gas/air ?
A Active carbon
B Silica gel
C Bog iron (iron oxide)
D Pulverised limestone
Correct Answer: Silica gel
Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ?
A CO2
B H2
C SO3
D N2
Correct Answer: SO3