a. Better utilization of space b. Increase fuel economy c. Better weight distribution d. Reduce the weight of chassis Ans: […]
In commercial vehicle layouts engine is located forward, rear or under floor mainly to Read Post »
a. High speed jets b. Accelerating jets c. Float level jets d. Idle jets Ans: a
The metering rod is designed to vary the size of which jets Read Post »
a. Otto cycle b. Carnot cycle c. Diesel cycle d. Rankine cycle Ans: c
The type of air cycle used in diesel engine is called Read Post »
The maximum pressure of air at the end of compression in diesel engines is about A. 10 Kg/cm2 B. 100
The maximum pressure of air at the end of compression in diesel engines is about Read Post »
a. Increase the volumetric efficiency b. Increase the compression ratio c. Bring the fuel quickly in contact with the air
The turbulence in diesel engines ensures to Read Post »
a. Equal to atmospheric pressure b. Above atmospheric pressure c. Above or below atmospheric pressure d. Below atmospheric pressure Ans:
During suction stroke the pressure inside the cylinder is Read Post »
a. Remains the same b. Increases c. Becomes zero d. Decreases Ans: b
a. The ratio of engine h.p to laden weight of vehicle b. Max. engine torque / wt. of vehicle c.
The range of gear ratios in a vehicle depends on Read Post »
a. Isothermal process b. Hyperbolic process c. Adiabatic process d. Constant pressure process Ans: c
During compression stroke the air is compressed according to Read Post »
a. Viscous friction b. Greasy friction c. Dry friction Ans: a
The type of friction generally present in an automotive engine is Read Post »
a. Thermal efficiency will be increased b. Volumetric efficiency will be increased c. Air standard efficiency will be decreased d.
If compression ratio is increased Read Post »
a. Forged round section steel b. Cast steel triangular section c. Forged square section steel d. Forged I section steel
Connecting rods are generally of the following from Read Post »
a. Piston skirt b. Piston head c. Point of minimum diameter Ans: b
The fit of the piston to the cylinder is measured at the Read Post »
