engineering recuitment NCL Assistant Foreman (Trainee) Mock Test 2024 Theory of Machines Mechanisms and Machines
Which of the following statements are incorrect?
1
Grashof’s rule states that for a planar crank-rocker four-bar mechanism, the sum of the shortest and longest link lengths cannot be less than the sum of the remaining two link lengths.
2
Inversion of mechanism are created by fixing different links one at a time
3
Geneva mechanism is an intermittent motion device
4
Gruebler’s criterion assumes mobility of a planar mechanism to be one