GATE Mechanical Engineering (ME) 2018 Shift 1 Solved Paper

Question : 23 of 65

Marks: +1, -0

A four bar mechanism is made up of links of length

100,200,300

and

350 {mm}

. if the 350

{mm}

link is fixed, the number of links that can rotate fully is ___________

Your Answer:

Validate

Solution:

s=100, p \;\; =200, l=350, q=300

(s+l) \;\; =350+100=450<(p+q)

450 <200+300

450 <500

Grashoff’s law is satisfied.
350 mm link is fixed, i.e. adjacent to shortest link is fixed.
The mechanism obtained will be crank rocker mechanism, it means only one link (crank) will fully rotate.

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