M C Q s D r i v e
03079682698
mcqsdrive@gmail.com
About
Contact

Contact Info

03079682698

mcqsdrive@gmail.com

Ad Banner

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

thumb

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

Main pollutant present in automobile exhaust is_________________?
A CO
B CO2
C NO
D Hydrocarbons
Correct Answer: CO
Scale formation in boiler is controlled by____________________?
A Preheating of feed water
B Reduction in hardness, silica & alumina in feed water
C Keeping the pH value of feed water just below 7
D Eliminating H2S in feed water
Correct Answer: Reduction in hardness, silica & alumina in feed water
Noise level heard at a distance of about 100 metres from a jet engine with after burner is about _____________ decibels?
A 120
B 140
C 170
D 200
Correct Answer: 170
Presence of bacteria in potable (drinking) water causes_________________?
A Turbidity
B Disease
C Bad odour
D Bad taste & colour
Correct Answer: Disease
TLV of ozone (O3) and phosgene (COCl2) in air is _______________ ppm?
A 0.1
B 25
C 100
D 1000
Correct Answer: 0.1
Radioactive substances present in the polluted water stream can be removed by_________________?
A Biological oxygen treatment
B Coagulation and filtration
C Adsorption in ion exchange materials
D None of these
Correct Answer: Adsorption in ion exchange materials
H2S present in gaseous stream can be removed by adsorption on _____________________?
A Silica gel
B Active carbon
C Bog iron
D Limestone powder
Correct Answer: Bog iron
Maximum permissible turbidity in potable water is _____________ ppm?
A 1
B 10
C 250
D 1000
Correct Answer: 1
Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes__________________?
A Blood poisoning
B Anaemia
C Nervous system disorder
D All A., B. & C.
Correct Answer: All A., B. & C.
Higher concentration of CO2 in atmosphere_____________________?
A Allows visible solar radiation (ultraviolet) of short wave-length to pass through
B Reflects and absorbs the longer wavelength (infra-red) radiations
C Prevents solar heat being radiated out completely, resulting in ‘heat trap’ i.e., global warming
D All A., B. and C.
Correct Answer: All A., B. and C.
03079682698
mcqsdrive@gmail.com

Copyright @ 2026 MCQsDrive . All Rights Reserved.