Which of the following statement is correct for gears?
The addendum is less than the dedendum
The pitch circle diameter is the product of module and number of teeth
The contact ratio means the number of pairs of teeth in contact
All of the above
- The coriolis component of acceleration depends upon
- In railway axle boxes, the bearing used is
- In a coupling rod of a locomotive, each of the four pairs is a ________ pair.
- For low and moderate speed engines, the cam follower should move with
- The sense of Coriolis component is such that it
- In under damped vibrating system, the amplitude of vibration
- The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon…
- Relationship between the number of links (L) and number of pairs (P) is
- A foot step bearing and rotor of a vertical turbine form examples of
- A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration…
- In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given…
- In gears, interference takes place when
- The gear train usually employed in clocks is a
- The balancing of a rigid rotor can be achieved by appropriately placing balancing masses in
- A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located…
- The velocity of sliding of meshing gear teeth is (Where ω₁ and ω₂ are angular…
- Which of the following statement is correct?
- The factional torque for square thread at the mean radius r while raising load W is given by
- A rotor supported at A and B carries two masses as shown in the below figure. The rotor is
- When a rigid body is suspended vertically and it oscillates with a small amplitude under the action…
- A combination of kinematic pairs, joined in such a way that the relative motion between the links is…
- The frictional torque transmitted in a conical pivot bearing with assumption of uniform pressure is…
- When the sleeve of a Porter governor moves upwards, the governor speed
- The included angle for the V-belt is usually
- 3.The retardation of a flat faced follower when it has contact at the apex of the nose of a circular…
- A body will begin to move down an inclined plane, if the angle of inclination of the plane is ________…
- In a screw jack, the effort required to lower the load W is given by
- When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be
- When the addenda on pinion and wheel is such that the path of approach and path of recess are half of…
- In involute gears, the pressure angle is