List of top Mechanical Engineering Questions on Theory of Machines and Design

What is the significance of the "instantaneous center of zero velocity" in mechanism analysis?

In a clock mechanism, hour and minute hands are connected by _________ gear train.

If the coefficient of friction between brake lining and drum decreases, the braking effort required

A governor is said to be stable, if the radius of rotation of balls

Which of the following statements are associated with the complete dynamic balancing of rotating systems?
I. Resultant couple due to all inertia forces is zero
II. Support reactions due to forces are zero but not due to couples
III. The system is automatically statically balanced
IV. Centre of masses of the system lies on the axis of rotation

The minimum number of teeth on the pinion in order to avoid interference for $20^\circ$ full depth involute system is

For the better dynamic performance of cam follower mechanism, the following displacement diagrams should be chosen

In a given mechanism, the number of links are five. Then the number of instantaneous centres of the mechanism is

Assume that the connecting rod and the crank of an engine forms as two sides of the triangle. If the area included in the triangle is maximum when the crank is at $60^\circ$, then the ratio of length of connecting rod to the radius of the crank is

What is the significance of the "instantaneous center of zero velocity" in mechanism analysis?

In a clock mechanism, hour and minute hands are connected by _________ gear train.

If the coefficient of friction between brake lining and drum decreases, the braking effort required

A governor is said to be stable, if the radius of rotation of balls

Which of the following statements are associated with the complete dynamic balancing of rotating systems?
I. Resultant couple due to all inertia forces is zero
II. Support reactions due to forces are zero but not due to couples
III. The system is automatically statically balanced
IV. Centre of masses of the system lies on the axis of rotation

For the better dynamic performance of cam follower mechanism, the following displacement diagrams should be chosen

In a given mechanism, the number of links are five. Then the number of instantaneous centres of the mechanism is

The minimum number of teeth on the pinion in order to avoid interference for $20^\circ$ full depth involute system is

Assume that the connecting rod and the crank of an engine forms as two sides of the triangle. If the area included in the triangle is maximum when the crank is at $60^\circ$, then the ratio of length of connecting rod to the radius of the crank is

A governor is said to be stable, if the radius of rotation of balls

For the better dynamic performance of cam follower mechanism, the following displacement diagrams should be chosen

In a given mechanism, the number of links are five. Then the number of instantaneous centres of the mechanism is

A flywheel is designed for engine speed variation from $190\text{ rps}$ to $210\text{ rps}$. Calculate the inertia of the wheel if the kinetic energy stored in the flywheel is $400\text{ N}\cdot\text{m}$.

The minimum number of teeth on the pinion in order to avoid interference for $20^\circ$ full depth involute system is

Assume that the connecting rod and the crank of an engine forms as two sides of the triangle. If the area included in the triangle is maximum when the crank is at $60^\circ$, then the ratio of length of connecting rod to the radius of the crank is