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A mechanism has n number of links (including fixed links) and f number...

Q.  
A mechanism has n number of links (including fixed links) and f number of pins or revolute pairs or pairs that permit one degree of freedom. According to Gruebler’s equation the number of degrees of freedom is given by


Answer & Explanation

Answer :   Option: A


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More Questions Theory of Machines:

Q.  
Universal joint is used to connect two shafts which are

A. Non-parallel and intersecting shafts and misaligned shafts

B. Parallel and intersecting shafts and misaligned shafts

C. Parallel and intersecting shafts and aligned shafts

D. Non-parallel and intersecting shafts and aligned shafts


Answer & Explanation

Q.  
Which one of the following statements is not correct?

A. Hooke’s joint is used to connect two rotating co-planar, non-intersecting shafts

B. Hooke’s joint is used to connect two rotating co-planar, intersecting shafts

C. Oldham’s coupling is used to connect two parallel rotating shafts

D. Hooke’s joint is used in the steering mechanism for automobiles


Answer & Explanation

Q.  
In a Hooke’s joint, the driving shaft rotates at constant angular speed but driven shaft rotates at

A. Constant angular speed throughout its revolution

B. Constant angular speed for half revolution while varying speed for another half

C. Varying speed which gets it maximum value one times in each revolution

D. Varying speed which gets it maximum value two times in each revolution


Answer & Explanation

Q.  
Two shafts at an angle α are connected by hook’s joint. The maximum variation in the velocity of driven shaft w.r.t. its mean velocity is expressed as

A. Tan(α).sin(α)

B. Tan(α).cos(α)

C. Cot(α).sin(α)

D. Cot(α).cos(α)


Answer & Explanation
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