Mechanical Engineering :: Internal Combustion Engines
- The air requirement of a petrol engine during starting compared to theoretical air required for complete combustion is
- Which of the following fuel detonates readily?
- Pour point of fuel oil is the
- The function of a distributor in a coil ignition system of I.C. engines is
- Compression ratio of I.C. Engines is
- The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in meters, N = Speed of engine in r.p.m., S = Spring balance reading in newtons, D = Dia. of brake drum in meters, and d = Dia. of rope in meters)
- The ignition of the charge by some hot surface within the engine before the passage of spark is called
- The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)
- The frictional power (F.P.) is given by
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A.
Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame |
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B.
Temperature at which it solidifies or congeals |
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C.
It catches fire without external aid |
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D.
Indicated by 90% distillation temperature i.e., when 90% of sample oil has distilled off |