Define Octane number and Cetane number
Why does a compression engine use high –octane fuel?
what is a stage time
Discuss the Otto cycle.
What is an injector pressure in heavy vehicle?
What will happen if wrong fuel is burnt in engine?
Define riveted joints.
Hard shifting of gears would result when a) There is rapid engagement of gears b) There is less heat dissipation c) The clutch inertia is very high d) There is no clutch free pedal play
The permanent reduction provided by the final drive in heavy vehicle is a) 4:1 b) 6:1 c) 8:1 d) 10:1
Explain the consequences of using bs3 engine fuel with bs4 engines.
Differentiate between two stroke engines four stroke engines.
If the given tractive effort curve and the total resistance curve does not intersect, then a) The vehicle will accelerate b) The vehicle will decelerate c) The vehicle will not be able to go at this gradient for the given gear d) None of the above
How air conditioners work in cars?
Double declutching is required in constant mesh gear box a) To equalize the speed of main shaft gear and the sliding dog b) To provide direct gear c) To equalize the speed of countershaft gear and the sliding dog d) None of the above
High speed gear is obtained in the case of sliding mesh gear box when a) Motion is transferred through the clutch gear to lay shaft gear b) Main shaft is coupled to the clutch shaft c) Smallest gear on the lay shaft is engaged d) Largest gear on the lay shaft is engaged