232. The cetane number of diesel oil, generally available is of the order of
A.0-5
B.55-70
C.20-25
D.30-35

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233. Morse test in multi-cylinder, engines is used to determine
A.Air flow to engine
B.Mechanical efficiency
C.B.H.P.
D.I.H.P.

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234. High speed diesel engines need a cetane number of
A.100
B.50
C.0
D.Infinity

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235. The volatility of a diesel-fuel oil is indicated by the
A.Distillation temperature
B.50% distillation temperature
C.30% distillation temperature
D.20% distillation temperature

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236. Speed droop is the
A.Decrease in engine speed
B.Decrease in engine speed from no load to full load
C.Decrease in engine speed form 25% load to 75% load
D.Decrease in engine speed at 50% load

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237. Hunting occurs due to
A.Over-control by the governor
B.Poor-control by the governor
C.Faulty governor
D.Improperly designed governor

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238. Rocker arms are used in following type of I.C. engines
A.Side valve engines
B.Radial engines
C.Stationary engines
D.Overhead 'valve engines

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