Answer:
Yes
Explanation:
As we know that octane number resist the engine from knocking.If knocking can prevent that automatically the performance of engine will increases.If octane number is 100 then it means that knocking tendency in the engine is zero.So higher the octane number better will the performance of the engine.
Generally octane number is 87 but for premier gasoline is 92 or 93.
So we can say that if octane number is 93 then car will give better performance
Answer: a) Efficiency = 0.92
b) V = 319.19 m/s
c) S = 0.012 kj/kg.k
Explanation: please find the attached files for the solution
Umm... Heck no, that is very dangerous and could cause you to loose a finger... OR A HAND. To be safe I would always turn it off but if the saw has an on and off switch and a rev switch I think it would be ok.