131) The running cost of a petrol engine is __________ than that of a diesel engine.

132) In a petrol engine, if diesel is used, then the engine will

133) Number of working strokes per min. for a four stroke cycle engine are __________ the speed of the engine in r.p.m.

134) The air standard efficiency of an I.C. engine depends on

135) The mean effective pressure of a diesel engine having fixed compression ratio will __________ if cut off ratio decreases.