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In a Wilson-Hartnell governor, the balls are connected by
  • a)
    one spring
  • b)
    two springs in series
  • c)
    two parallel springs
  • d)
    four springs
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
In a Wilson-Hartnell governor, the balls are connected bya)one springb...
Wilson-Harnell governor (also known as radial spring controller) uses two parallel springs alongwith an auxiliary spring.
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In a Wilson-Hartnell governor, the balls are connected bya)one springb...
Wilson-Hartnell Governor

The Wilson-Hartnell governor is a type of centrifugal governor used in steam engines and other rotating machinery to control the speed. It consists of two balls or weights connected by springs to a central spindle. As the speed of the machine increases or decreases, the balls move outwards or inwards, respectively, causing the control mechanism to adjust the input to the machine and maintain a constant speed.

Ball Connections

The balls in a Wilson-Hartnell governor are connected by two parallel springs. This means that the springs are connected in such a way that they share the load and work together to control the movement of the balls.

Reason for Using Two Parallel Springs

The use of two parallel springs in the Wilson-Hartnell governor offers several advantages:

1. Increased Stability: The parallel arrangement of the springs provides increased stability to the governor. When one spring is compressed or extended, the other spring counteracts the force, resulting in a more balanced and stable system.

2. Redundancy: Having two springs provides redundancy in case one spring fails. If one spring breaks or loses its elasticity, the other spring can still function and maintain the governor's operation.

3. Load Sharing: The parallel arrangement allows for the load to be shared between the two springs. This distributes the load evenly, reducing the stress on each individual spring and increasing their lifespan.

4. Adjustability: By adjusting the stiffness of the springs, the sensitivity of the governor can be fine-tuned. This allows for more precise control over the speed of the machine.

5. Smooth Operation: The use of two parallel springs helps to minimize any jerky or sudden movements of the balls. This ensures smoother operation of the governor and reduces wear and tear on the system.

In summary, the Wilson-Hartnell governor utilizes two parallel springs to connect the balls. This arrangement provides increased stability, redundancy, load sharing, adjustability, and smooth operation, making it an effective and reliable speed control mechanism in various mechanical systems.
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