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- Subject
- I.C. Enginesmechanical-engineering-mcqs › i-c-engines
- Published
- 27 Jan 2019
- Last updated
- 28 May 2026
Explanation
Option A refers to the precise chemical balance between air and fuel, known as the stoichiometric ratio. Options B through E describe mixtures that are either lean or rich under different operating conditions, but only A correctly defines the stoichiometric air-fuel ratio.
More I.C. Engines MCQs
Practice related questions from the same subject.
- 1.Where is the combustion chamber situated in an opposed piston diesel engine?
- 2.In a naturally aspirated diesel engine, what component delivers the air to the engine?
- 3.In the crankcase scavenging technique, what generates the air pressure required for the process?
- 4.In loop scavenging, how is the piston crown typically shaped?
- 5.Which lubricant oil has the highest viscosity among the following options?
- 6.What component regulates the air-to-fuel mixture in petrol engines?
- 7.What does the pour point of fuel oil refer to?
- 8.What is the approximate air-to-fuel ratio in a petrol engine that yields the highest power output in vehicles?
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