181) Anti-knock for compression ignition engines is

182) In an internal combustion engine, the process of removing the burnt gases from the combustion chamber of the engine cylinder is known as

183) In petrol engines, using a fixed octane rating fuel, the increase in compression ratio will not effect the knocking tendency.

184) Supercharging is the process of supplying the intake air to the engine cylinder at a density __________ the density of the surrounding atmosphere.

185) The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of