Question Bank • QB_FP_ADV_060 MCQ • 1 Mark

Section 3: Farm Power

Tractors and Power Tillers

Subtopic: Three point hitches – free link and restrained link operations

Question Statement:

In agricultural tractor three-point hitch systems, top-link draft sensing is preferred over lower-link sensing primarily for:

Options:

  • (A) Heavy heavy-duty semi-mounted subsoilers
  • (B) Light and medium-duty mounted tillage implements where compression in the top link provides a high signal-to-noise ratio
  • (C) Heavy multi-bottom trailed disc plows
  • (D) Tractor drawbar cart hauling

Answer Key:

B

Step-by-Step Solution & Explanation

- **Draft Sensing Mechanics:** - For small to medium 2WD tractors (
lt; 45\text{ kW}$), top-link sensing is simple, sensitive, and economical because mounted implements exert strong compressive forces on the top link. - However, for heavy multi-bottom ploughs, top link forces can fluctuate between tension and compression, so large heavy tractors utilize lower-link draft sensing (sensing draft tension directly through torsion bar or bending pins).
← Previous (QB_FP_078) Next (QB_SUB_FP_HTC_001) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test