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- Subject
- I.C. Enginesmechanical-engineering-mcqs › i-c-engines
- Published
- 27 Jan 2019
- Last updated
- 28 May 2026
Explanation
The primary reason aluminum alloy is used for engine pistons is its light weight, which helps reduce the overall mass and improves engine efficiency. Other properties such as wear resistance, shock absorption, strength, and chemical inertness are less significant factors in this choice.
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.What does a stoichiometric air-fuel ratio represent?
- 6.Which lubricant oil has the highest viscosity among the following options?
- 7.What component regulates the air-to-fuel mixture in petrol engines?
- 8.What does the pour point of fuel oil refer to?
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