The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)
1/2π × √(s/m)
1/2π × √(g/δ)
0.4985/√δ
Any one of these
- An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one…
- Which of the following governor is used to drive a gramophone?
- The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing…
- The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given…
- The factor which affects the critical speed of a shaft is
- A disturbing mass m₁ attached to the rotating shaft may be balanced by a single mass m₂…
- Angle of action of cam is defined as the angle
- The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating…
- The cam follower generally used in automobile engines is
- In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where…
- What is the number of instantaneous centres for an eight link mechanism?
- Hart mechanism has
- A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration…
- The centre of percussion is below the centre of gravity of the body and is at a distance equal to
- For fluctuating loads, well suited bearing is
- Which of the following is a spring controlled governor?
- Instantaneous center of rotation of a link in a four bar mechanism lies on
- The direction of Coriolis component of acceleration is the direction
- The method of obtaining different mechanisms by fixing in turn different links in a kinematic chain,…
- With single Hooke's joint it is possible to connect two shafts, the axes of which have an angular misalignment…
- In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude…
- The natural frequency of free transverse vibrations due to uniformly distributed load acting over a…
- The Hooke's joint consists of:
- In railway axle boxes, the bearing used is
- Maximum fluctuation of energy in a flywheel is equal to [where I = Mass moment of inertia of the flywheel,…
- Minimum number of teeth for involute rack and pinion arrangement for pressure angle of 20° is
- The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust…
- Power of a governor is the
- In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set…
- In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and…