Question

Based on the given image, which of the conclusions must follow?
Conclusion I: Models 1 and 2 can be used to get the same result with respect to the direction of rotation.
Conclusion II: Models 2 and 3 can be used to get the same result with respect to the direction of rotation.
Conclusion III: Models 1 and 3 can be used to get the same result with respect to the direction of rotation.

• A. Only conclusion I follows
• B. Only conclusion II follows
• C. Only conclusion III follows
• D. All of the conclusions follow
• E. None of the conclusions follow

Hint:

In mechanical systems with gears, ensure that you observe the interconnections carefully to determine the direction of rotation, especially when comparing different models or systems.

Answer 1

The Correct Option is D

By observing the connections in the models, it is clear that the direction of rotation for the gears in all the models results in the same direction of movement for the respective components. Therefore, all three conclusions about the direction of rotation between different models are valid. Thus, all the conclusions follow.