Engineering Chemistry Octane Cetane Number Online Exam Quiz
Engineering Chemistry Octane Cetane Number GK Quiz. Question and Answers related to Engineering Chemistry Octane Cetane Number. MCQ (Multiple Choice Questions with answers about Engineering Chemistry Octane Cetane Number
Which of the following compound readily goes under the process of knocking?
Options
A : 2-ethly butane
B : n-heptane
C : benzene
D : toluene
What should be the cetane number of middle speed diesel engine?
Options
A : At least 35
B : At least 25
C : At least 65
D : At least 45
Which of the following exhaust gas produces least harmless components after its combustion?
Options
A : Carbon monoxide
B : Ethyne
C : NOx
D : N2
Which of the following is used to reduce the surface tension in diesel fuel?
Options
A : Chemical additives
B : Inhibitors
C : Poly hydrocarbon
D : Dopes
By which process does the knocking starts in diesel engine?
Options
A : Due to sudden spontaneous combustion of last portion of fuel
B : Due to delay in spontaneous combustion of last portion of fuel
C : Due to the rise in temperature of diesel engine
D : Due to the parts of diesel engine
Which of the following has the highest cetane number?
Options
A : n-heptane
B : n-hexane
C : n-pentane
D : n-butane
Which of the following compound is considered for calculating the octane number?
Options
A : n-heptane
B : n-hexane
C : iso-octane
D : iso-butane
Which of the following substance is used to decrease knocking in diesel fuel?
Options
A : Tetra ethyl lead
B : Benzene
C : Sodium hydroxide
D : Acetone peroxide
The knocking characteristic of gasoline fuel are expressed in terms of cetane number.
Options
A : True
B : False
C :
D :
Which of the following compound is considered for calculating the cetane number?
Options
A : ?-methyl naphthalene
B : n-hexane
C : iso-octane
D : cetane molecule
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