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 distance between fixed pivots of crank and followers is

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 distance between fixed pivots of crank and followers is

Slightly more than 95 mm

45 mm

95 mm

Slightly less than 95 mm

Slightly more than 95 mm

45 mm

95 mm

Slightly less than 95 mm

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Theory of Machine
The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

Inner edge

Corners

Outer edge

None of these

Inner edge

Corners

Outer edge

None of these

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Theory of Machine
For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

secφ

sinφ

cosφ

cosecφ

secφ

sinφ

cosφ

cosecφ

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Theory of Machine
Under logarithmic decrement, the amplitude of successive vibrations are

In logarithmic progression

Constant

In geometric progression

In arithmetic progression

In logarithmic progression

Constant

In geometric progression

In arithmetic progression

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Theory of Machine
A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is

9,360 r.p.m.

12,000 r.p.m.

6,000 r.p.m.

5,367 r.p.m.

9,360 r.p.m.

12,000 r.p.m.

6,000 r.p.m.

5,367 r.p.m.

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Theory of Machine
The example of successfully constrained motion is a

Motion of the shaft between a footstep bearing

All of these

Motion of an I.C. engine valve

Piston reciprocating inside an engine cylinder

Motion of the shaft between a footstep bearing

All of these

Motion of an I.C. engine valve

Piston reciprocating inside an engine cylinder

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Theory of Machine

Theory of Machine The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

Theory of Machine For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

Theory of Machine Under logarithmic decrement, the amplitude of successive vibrations are

Theory of Machine A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is

Theory of Machine The example of successfully constrained motion is a

Theory of Machine
The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

Theory of Machine
For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

Theory of Machine
Under logarithmic decrement, the amplitude of successive vibrations are

Theory of Machine
A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is

Theory of Machine
The example of successfully constrained motion is a