In two-stroke engines, what is required to purge exhaust gasses?(a) Lighter piston(b) Lubrication(c) Oil(d) ScavengingThis question was posed to me by my college professor while I was bunking the class.The above asked question is from Petrol Engine Fuel Supply System in chapter Exhaust System & Petrol Engine Fuel Supply System of Automotive Engine Design

In two-stroke engines, what is required to purge exhaust gasses?(a) Li

1.	In two-stroke engines, what is required to purge exhaust gasses?(a) Lighter piston(b) Lubrication(c) Oil(d) ScavengingThis question was posed to me by my college professor while I was bunking the class.The above asked question is from Petrol Engine Fuel Supply System in chapter Exhaust System & Petrol Engine Fuel Supply System of Automotive Engine Design
Answer» The correct answer is (d) Scavenging Easy EXPLANATION: In two-STROKE engines, scavenging is required to PURGE exhaust gasses, as well as charge the cylinders for the NEXT POWER stroke. In small engines, this requirement is commonly met by using the crankcase as a blower.

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