Questions and Answers
1.The rating of C.I. engine fuel (Diesel) is given by
cetane number
2.In bias ply tyres
one ply layer runs diagonally one way and another layer runs diagonally the other way
3.The boiling point of Diesel fuel is in the range of
180°C to 360 °C
4.The braking control type traction control system (TCS) generally operates in the speed range of
less than 40 kmph
5.If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on
too rich mixture.
6.The two rows of cylinders in a 'V' type engine are generally arranged at
60°
7.The crescent-shaped cavity on the piston head top surface is called as
valve recess
8.The octane rating of petrol commercially available is
85-95
Note:-a figure indicating the anti-knock properties of a fuel, based on a comparison with a mixture of isooctane and heptane.
9.The stroke of an engine is the
Distance between T.D.C. and B.D.C.
10.The function of a second ring is that it is a
compression ring and aids the top ring in sealing and cooling.
Note:-However, they also play an important part in controlling engine oil consumption.
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