engineering recuitment BEL Probationary Engineers Mock Test 2025 Theory of Machines Mechanisms and Machines Four Bar Mechanism
In a four-bar linkage, the Grashof's criterion states that for at least one link to be capable of making a complete revolution with respect to its adjacent link, which condition must be met? (s -length of the shortest bar, I- length of the longest bar and p, q - lengths of intermediate bar)
1
s + l ≤ p + q
2
s × l ≤ p × q
3
s × l ≥ p × q
4
s + l ≥ p + q