The pressure and temperature at the end of compression stroke in a petrol engine are of the order of ______.

 (a)     4 - 6 kg/cm2 and 200 - 250°C
(b)    6 - 12 kg/cm2 and 250 - 350°C
(c)    12 - 20 kg/cm2 and 350 - 450°C
(d)    20 - 30 kg/cm2 and 450 - 500°C
(e)     30 - 40 kg/cm2 and 500 - 700°C.

Ans: b