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Theory of Machine

Theory of Machine
The cam and follower is an example of

Rolling pair
Higher pair
Sliding pair
Lower pair

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Theory of Machine
In S.H.M., the velocity vector w.r.t. displacement vector

Leads by 90°
Are in phase
Lags by 90°
Leads by 180°

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Theory of Machine
The relation between number of links (l) and number of joints (j) in a kinematic chain is

l = (2/3).(j + 2)
l = (1/2).(j + 2)
l = j + 4
l = (3/4).(j + 3)

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Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be

Slightly more than 45 mm
Slightly less than 45 mm
45 mm
95 mm

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Theory of Machine
The Klein's diagram is used when

Crank has nonuniform angular acceleration
Crank has uniform angular acceleration
Crank has uniform angular velocity
Crank has nonuniform angular velocity

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Theory of Machine
In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be

45 mm
Slightly less than 45 mm
95 mm
Slightly more than 45 mm

ANSWER DOWNLOAD EXAMIANS APP
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