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

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

Slightly more than 45 mm

95 mm

45 mm

Slightly less than 45 mm

Slightly more than 45 mm

95 mm

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Theory of Machine
The rotating shafts tend to vibrate violently at whirling speeds because

Resonance is caused due to the heavy mass of the rotor

The shafts are rotating at very high speeds

Bearing centre line coincides with the axis

The system is unbalanced

Resonance is caused due to the heavy mass of the rotor

The shafts are rotating at very high speeds

Bearing centre line coincides with the axis

The system is unbalanced

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Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by

ω² × QN

ω² × CN

ω² × NO

ω² × CO

ω² × QN

ω² × CN

ω² × NO

ω² × CO

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Theory of Machine
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

One fourth of the first one

Four times the first one

Same as the first one

One and a half times the first one

One fourth of the first one

Four times the first one

Same as the first one

One and a half times the first one

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Theory of Machine
Bifilar suspension method is used to find the

Angular acceleration of the body

Periodic time of the body

Frequency of vibration of the body

Moment of inertia of the body

Angular acceleration of the body

Periodic time of the body

Frequency of vibration of the body

Moment of inertia of the body

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Theory of Machine
An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be

600°K

700°K

650°K

625°K

600°K

700°K

650°K

625°K

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Theory of Machine

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

Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because

Theory of Machine If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

Theory of Machine Bifilar suspension method is used to find the

Theory of Machine An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be

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

Theory of Machine
The rotating shafts tend to vibrate violently at whirling speeds because

Theory of Machine
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

Theory of Machine
Bifilar suspension method is used to find the

Theory of Machine
An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be