When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle)

Theory of Machine
When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle)

[(r + R) cosφ]/2

[(r + R) sinφ]/2

[(r² + R²) cosφ]/2

[(r² + R²) sinφ]/2

[(r + R) cosφ]/2

[(r + R) sinφ]/2

[(r² + R²) cosφ]/2

[(r² + R²) sinφ]/2

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Theory of Machine
The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

2

1

3

4

2

1

3

4

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Theory of Machine
The motion between a pair which takes place in ____ is known as incompletely constrained motion.

More than one direction

One direction only

Two directions only

None of the listed here

More than one direction

One direction only

Two directions only

None of the listed here

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Theory of Machine
The swaying couple is due to the

Partial balancing

Secondary unbalanced force

Two cylinders of locomotive

Primary unbalanced force

Partial balancing

Secondary unbalanced force

Two cylinders of locomotive

Primary unbalanced force

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Theory of Machine
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

0, and less than coV

cor, 0

0, and more than co2r

0, 0

0, and less than coV

cor, 0

0, and more than co2r

0, 0

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Theory of Machine
The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

ω²r [sin θ + (sin 2θ/n)]

ω²r [cos θ + (cos 2θ/n)]

ωr [sin θ + (sin 2θ/n)]

ωr [cos θ + (cos 2θ/n)]

ω²r [sin θ + (sin 2θ/n)]

ω²r [cos θ + (cos 2θ/n)]

ωr [sin θ + (sin 2θ/n)]

ωr [cos θ + (cos 2θ/n)]

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Theory of Machine

Theory of Machine The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

Theory of Machine The motion between a pair which takes place in ____ is known as incompletely constrained motion.

Theory of Machine The swaying couple is due to the

Theory of Machine The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

Theory of Machine The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)

Theory of Machine
The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

Theory of Machine
The motion between a pair which takes place in ____ is known as incompletely constrained motion.

Theory of Machine
The swaying couple is due to the

Theory of Machine
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be

Theory of Machine
The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank)