MCQ
Q.
Consider a tractor operating on a sandy loam soil. Which of the following conditions would generally lead to the HIGHEST traction efficiency for a given wheel slip range?
Correct Answer: A
Higher traction efficiency is achieved by maximizing the tractive force while minimizing energy losses due to slip. Increased ballast weight improves the normal load on the driving wheels, increasing the tractive force available before excessive slip occurs. Reduced tire inflation pressure increases the contact area between the tire and the soil, which helps in distributing the load better, reducing ground pressure, and often improving traction and reducing slip on soft soils. Both factors contribute to better traction efficiency.