A hmh flame speed is obtained in diesel engine when air fuel ratio is_______________? A. uniform throughout the mixture B. chemically correct mixture C. about 3-5% rich mixtureD. about 10% rich mixture E. about 10% lean mixture
Volatility of diesel fuel oil is_________________? 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 B. temperature at which it solidifies…
A 5 BHP engine running at full load would consume diesel of the order of_________________? A. 0.3 kg/hrB. 1 kg/hr C. 3 kg/hr D. 5 kg/hr E. 10 kg/hr
The following volume of air is required for consuming 1 liter of fuel by a four stroke engine_______________? A. 1 m3 B. 5 m3 C. 5-6 m3D. 9-10 m3 E. 15-18 m3
Air fuel ratio at which a petrol engine can not work is_________________? A. 8 : 1 B. 10 : 1 C. 15 : 1D. 20 : 1 and less E. will work at all ratios
The theoretically correct air fuel ratio for petrol engine is of the order of___________________? A. 6 : 1 B. 9 : 1 C. 12 : 1D. 15 : 1 E. 20 : 1
Scavenging is usually done to increase__________________? A. thermal efficiency B. speedC. power output D. fuel consumption E. all of the above
For the same power developed in I.C. engines, the cheaper system is_____________? A. naturally aspiratedB. supercharged C. centrifugal pump D. turbo charger E. none of the above
Flash point of fuel oil is __________________? A. minimum temperature to which1 oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame B. temperature at which it…
The operation of forcing additional air under pressure in the engine cylinder is known as________________? A. scavenging B. turbulenceC. supercharging D. pre-ignition E. dissociation and carburretion of fuel