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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

Presence of nitrates in water in excess of 50 ppm causes________________?
A Methemoglobinemia
B Gastroenteritis
C Asphyxiation
D Tooth decay
Correct Answer: Methemoglobinemia
Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas ?
A Packed scrubber
B Gravity settling chamber
C Electrostatic precipitator
D Hydrocyclone
Correct Answer: Electrostatic precipitator
Pick out the wrong statement ?
A The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere
B Stratosphere is rich in ozone and is located just above the troposphere
C Troposphere is a turbulent dusty zone containing much of water vapor and clouds
D The earth’s atmosphere is an envelope of gases extending upto a height of about 200 kms
Correct Answer: The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere
Ethanolamine is an absorbent used for the removal of _____________ from air/gas?
A HF
B SO2
C H2S
D Both B. & C.
Correct Answer: Both B. & C.
Threshold limit value (TLV) of CO in air is _____________ ppm?
A 5
B 50
C 2000
D 5000
Correct Answer: 5
There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth’s surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about _____________ °C/km?
A 0.05
B 1
C 6.5
D 15
Correct Answer: 6.5
Which of the following is the most widely used disinfectant in water treatment ?
A Chlorine
B Irradiation of water by ultraviolet light
C Cation exchanger
D Coagulation
Correct Answer: Chlorine
Which of the following is not a natural source of air pollution ?
A Volcanic eruptions and lightening discharges
B Biological decay of vegetable matter
C Photochemical oxidation of organic matter
D None of these
Correct Answer: None of these
Removal of ______________ results from the disinfection of water?
A Turbidity
B Odour
C Hardness
D Bacteria
Correct Answer: Bacteria
A standard test for determination of hardness in water is termed as ______________ test?
A EDTA
B Electometric
C Total count
D Presumptive
Correct Answer: EDTA
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