# GATE Mechanical 2014 Set 1 | Question: 10

For the given statements:

1. Mating spur gear teeth is an example of higher pair
2. A revolute joint is an example of lower pair

1. Both $I$ and $II$ are false
2. $I$ is true and $II$ is false
3. $I$ is false and $II$ is true
4. Both $I$ and $II$ are true

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