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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

Green house effect is accentuated by________________?
A Deforestation
B Rapid industrialisation
C Increased transportation activity
D All A., B. and C.
Correct Answer: All A., B. and C.
Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause___________________?
A Explosion
B Non biodegradable foam
C Undesirable plant growth
D Corrosion
Correct Answer: Explosion
The widest explosive limit is of _____________, thereby making it the most explosive gas?
A Acetylene
B Petrol vapor
C Hydrogen
D Carbon monoxide
Correct Answer: Acetylene
Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for___________________?
A Conversion of CO into CO2 in the second compartment
B Conversion of NOx into N2 and NH3 in the first compartment
C Oxidation of unburnt hydrocarbon fuel in the second compartment
D All A., B. and C.
Correct Answer: All A., B. and C.
Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about ______________ decibels?
A 20
B 60
C 90
D 120
Correct Answer: 90
Smoke is produced due to__________________?
A Insufficient supply of combustion air and insufficient time for combustion
B Poor quality of fuel and improper mixing of fuel & combustion air
C Poor design & overloading of furnace
D All A., B. and C.
Correct Answer: All A., B. and C.
World environment day is observed every year on the 5th of___________________?
A June
B December
C July
D September
Correct Answer: June
Foul odour and bad taste of water is removed by treating with__________________?
A Alum
B Bleaching powder
C Activated carbon
D Copper sulphate
Correct Answer: Activated carbon
Pick out the wrong statement. A. Caustic embrittlement of boiler’s metallic parts is caused by high concentration of caustic soda in boiler feed water___________________?
A
B Cooling and freezing of water kills the bacteria present in it
C With increasing boiler operating pressure of steam, the maximum allowable concentration of
D Dissolved oxygen content in high pressure boiler feed water should be nil
Correct Answer: Cooling and freezing of water kills the bacteria present in it
Presence of a certain minimum quantity of fluorine is desirable in potable water to prevent___________________?
A Dental cavities
B Scale formation
C Water-borne disease
D Corrosion
Correct Answer: Dental cavities
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