1
Machine parameters those influence the performance of a combine harvester are
(A) . speed of reel
(B) . speed of threshing cylinder
(C) . extent of vibration
(D) . height of cut
(©). speed of straw rack
Choose the correct answer from the options given below:
EXPLANATION
Variable Rate Technology & Yield Monitoring
- Combine Harvester Operating Parameters:
- The functional performance (cutting, feeding, threshing efficiency, grain loss) of a self-propelled combine harvester is directly influenced by machine operational settings:
- Speed of reel: Determines crop gather and feeding into the cutter bar.
- Speed of threshing cylinder: Directly affects unthreshed loss and grain damage.
- Extent of vibration: Excessive vibration impairs uniform material flow and separator stratification.
- Speed of straw rack / walkers: Determines straw conveyance and walker separation loss.
- (D) Height of cut is primarily an agronomic/field setting rather than an internal machine operational speed parameter.
- Conclusion: (A), (B), (C) and (E) only (Option 3).
Correct option: (3) (A), (B), (C) and (E) only.
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