SSC JE Mechanical Engineering 2012 Paper

Question : 159 of 200

Marks: +1, -0

The crank radius of a slider crank mechanism is 10 cm. If the crank radius is increased to 12 cm, the stroke length will increase by

Solution:

We know

{\stroke\length (l )}/{\crank \radius (r)}=n

r ∝ l

10 ∝ l

12 ∝ l

Radius is proportional to length radius increases 20%
So length also increases by 20%.

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