Question

On the farm, during paddy land preparation, if one wheel of tractor gets in mud, which of the following mechanism will be useful to take out the tractor from mud by distributing equal amount of traction at both the rear wheels?

• A. Break Lock
• B. Differential Lock
• C. Flywheel Lock
• D. Hydraulic Valve Lifting Lever Lock

Hint:

Think about which mechanism forces both rear wheels to spin at the same speed.

Answer 1

The Correct Option is B

Step 1: Think about why the tractor gets stuck first. A free differential always sends torque toward the wheel that spins easiest, which is the muddy, slipping wheel, leaving the gripping wheel almost powerless.

Step 2: The differential lock mechanically joins both rear axle halves so they must rotate together, removing the differential's ability to favor the slipping side.

Step 3: With both wheels forced to spin at the same rate, the wheel still on solid ground now shares in pulling the vehicle, dragging the stuck wheel free of the mud.

\[\boxed{\text{Differential Lock}}\]