Project ForgeTheory of Machines
Kinematics of Mechanisms
GATE 2014
Easy
For the given statements: I. Mating spur gear teeth is an example of higher pair. II. A revolute joint is an example of lower pair. Indicate the correct answer.
- ABoth I and II are false
- BI is true and II is false
- CI is false and II is true
- Both I and II are true
Explanation
Mating gear teeth contact along a line/point (not a surface), which is the definition of a higher pair — statement I is true. A revolute (pin/hinge) joint has surface contact, the definition of a lower pair — statement II is true. Both are true.
Source: GATE ME 2014 (Session 1 / Set-1) (2014)
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