161) A two stroke cycle engine gives __________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed.

162) By higher octane number of spark ignition fuel, it is meant that the fuel has

163) The spark ignition engines are governed by

164) If petrol is used in a diesel engine, then

165) The sensing element in the control system of nuclear reactors measure the __________ of the neutron flux in the reactor.