C.I. Engines MCQs : Here you will find MCQ Questions related to "Internal Combustion Engines (C.I. Engines)" in IC Engine. These C.I. Engines MCQ Questions Will help you to improve your IC Engine knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
Question 1
NOx is reduced in a CI engine by the use of EGR.
A. unpredictable
B. increased
C. reduced
D. None of the above
Question 2
EGR and lower combustion temperatures contribute to an ____________ in solid soot.
A. decreases
B. increases
C. same
D. None of the above
Question 3
Platinum and palladium are two main catalyst materials used for converters on CI engines.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Question 4
Platinum and palladium catalyst promotes the removal of ____________ of the gaseous HC in the exhaust.
A. 10-50%
B. 20-70%
C. 30-80%
D. 40-90%
Question 5
Platinum and palladium catalyst promotes the removal of _____________ of the gaseous CO in the exhaust
A. 10-60%
B. 50-100%
C. 30-80%
D. 40-90%
Question 6
Diesel fuel contains sulphur impurities, and this leads to poisoning of the catalyst materials.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Question 7
Traps are filter-like system often made of ceramic in the form of a monolith or mat, or metal wire mesh.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Question 8
Traps typically remove _____________ of particulates in the exhaust flow.
A. 30-80%
B. 40-90%
C. 50-100%
D. 60-90%
Question 9
Regeneration does not consists of combusting the particulates in the excess oxygen contained in the exhaust of the lean operating CI engine.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Question 10
With greatly increased mixing efficiency and speeds, large regions of fuel-rich mixtures can be avoided when combustion starts.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say