The factor which affects the critical speed of a shaft is
Diameter of disc
Span of shaft
Eccentricity
All of these
- The critical speed of a shaft in revolution per second is __________ as that of natural frequency of…
- In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation…
- The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.
- A spring controlled governor is said to be isochronous when the controlling force
- Which of the following is an example of a higher pair?
- If two moving elements have surface contact in motion, such pair is known as
- In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance…
- The dedendum circle diameter is equal to (where, φ = Pressure angle)
- The maximum frictional force, which comes into play, when a body just begins to slide over the surface…
- The condition for correct steering of a Davis steering gear is (where α = Angle of inclination…
- In a flat collar pivot bearing, the moment due to friction is proportional to
- The sense of coriolis component 2 ωv is same as that of the relative velocity vector v rotated…
- If the opposite links of a four bar linkage are equal, the links will always form a
- When the nature of contact between the elements of a pair is such that one element can turn about the…
- When two pulleys of different diameters are connected by means of an open belt, the angle of contact…
- The unbalanced force due to reciprocating masses
- The C.G. of a link in any mechanism would experience
- In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where…
- Kinematic pairs are those which have
- The relative velocity of B with respect to A in a rigid link AB is
- The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft,…
- The partial balancing of reciprocating parts in locomotives produces
- The purpose of a link is to
- The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon…
- If the number of links in a mechanism is equal to l, then the numbers of possible inversions are equal…
- The frictional torque transmitted in a conical pivot bearing, considering uniform wear, is
- The contact ratio for gears is
- The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt)…
- A higher pair has__________.
- The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity…