The cetane (Câ‚₆H₃₄) which is a straight chain paraffin, is assigned a cetane number of 120 50 100 TRUE ANSWER : ? YOUR ANSWER : ?
Supercharging is the process of Injecting excess fuel for raising more loads Supplying compressed air to remove combustion products fully Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere Providing forced cooling air TRUE ANSWER : ? YOUR ANSWER : ?
For the same power developed in I.C. engines, the cheaper system is Centrifugal pump Turbo charger Supercharged Naturally aspirated TRUE ANSWER : ? YOUR ANSWER : ?
A diesel engine as compared to petrol engine (both running and rated load) is Less efficient More efficient Equally efficient Other factors will decide it TRUE ANSWER : ? YOUR ANSWER : ?
The voltage required to produce a spark across the gap, between the sparking points is 10,000 to 12,000 volts 4000 to 6000 volts 6000 to 10,000 volts 2000 to 4000 volts TRUE ANSWER : ? YOUR ANSWER : ?
Gaseous fuel guarantees are based on Mean heat value of oil Calorific value of oil Low heat value of oil High heat value of oil TRUE ANSWER : ? YOUR ANSWER : ?
In petrol engines, the delay period is of the order of 0.001 second 0.004 second 0.002 second 0.003 second TRUE ANSWER : ? YOUR ANSWER : ?
The reference fuels for knock rating of spark ignition engines would include Iso-octane and alpha-methyl naphthalene Normal octane and aniline Normal heptane and iso-octane Iso-octane and normal hexane TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following does not relate to a compression ignition engine? Governor Fuel pump Fuel injector Carburettor TRUE ANSWER : ? YOUR ANSWER : ?
In a naturally aspirated diesel engine, the air is supplied by A centrifugal blower An injection tube A supercharger A vacuum chamber TRUE ANSWER : ? YOUR ANSWER : ?