The case with which petrol vapourizes is called its? Mark as favorite Copy Link oxidation octane number volatility cetane number Check Answer
It is necessary to maintain the valve clearances as they? Mark as favorite Copy Link reduce the resistance to sliding that occurs between the cam and the tappet allow for lengthening of the valves owing to the heat of combustion increase the speed at which the valves move up and down make the crankshaft turn smoothly Check Answer
Highest useful compression ratio (HUCR) is the highest compression ratio at which? Mark as favorite Copy Link engine can run engine gives maximum output engine is most efficient fuel can be used in a test engine without knocking Check Answer
The cam shaft in an engine is always? Mark as favorite Copy Link parallel to the crankshaft perpendicular to the crankshaft inclined to the crankshaft none of these Check Answer
The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as? Mark as favorite Copy Link supercharging auto-ignition scavenging detonation Check Answer
Engine misfiring is likely to result from? Mark as favorite Copy Link spark plug gap too small spark plug gap too wide vapour lock in the fuel only incorrect fuel air mixture Check Answer
What type of bearing is used for main bearings and connecting rod bearings? Mark as favorite Copy Link Ball bearings Plain bearings Needle roller bearing Taper roller bearing Check Answer
The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as? Mark as favorite Copy Link indicator diagram axial force diagram valve timing diagram none of these Check Answer
The exhaust gas from petrol engine contains? Mark as favorite Copy Link petrol vapours water vapours carbon monoxide all of these Check Answer
In Diesel engines, during suction stroke …………. is drawn in the cylinder? Mark as favorite Copy Link air and fuel only fuel only air none of these Check Answer