Answer:
Tech A
Explanation:
Compression ratio of a internal combustion engine is about the cylinder. The ratio of maximum volume to minimum volume which is BDC and TDC respectively.
Scavenging is about replacement of gas, which is not related to compression ratio.
Therefore Tech A is correct.
Answer:
Tech A
Explanation:
Compression ratio of a internal combustion engine is about the cylinder. The ratio of maximum volume to minimum volume which is BDC and TDC respectively.
Therefore Tech A is correct.
Scavenging of exhaust gasses allows the exhaust valves to open for short time while intake valve is opened, there is a small overlap between the timing of opening and closing of intake and exhaust valves respectively.
Therefore Tech B is incorrect.
