railway RRB JE (CBT I + CBT II) Mock Test 2024 Internal Combustion Engine Engine Performance Parameter
It is important for the piston to fit 'snugly' into the cylinder to:
1
neither allow for easy movement nor provide a gas-tight space
2
provide a gas-tight space alone
3
both, allow for easy movement and provide a gas-tight space
4
allow for easy movement alone