A typewriter mechanism has 7 numbers of binary joints, six links and none of higher pairs. The mechanism is

A. Kinematically sound

B. Not sound

C. Soundness would depend upon which link is kept fixed

D. Data is not sufficient to determine same

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  1. If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for…
  2. In a reciprocating steam engine, which of the following forms a kinematic link?
  3. In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where…
  4. The size of a gear is usually specified by
  5. For an isochronous Hartnell governor (where r₁ and r₂ = Maximum and minimum radius of…
  6. Pitch point of a cam is
  7. When the crank is at the inner dead centre, in a reciprocating steam engine, then the velocity of the…
  8. A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance…
  9. The primary unbalanced force is maximum _________ in one revolution of the crank.
  10. A rotary internal combustion engine has __________ cylinders.
  11. The frictional torque transmitted in a flat pivot bearing with assumption of uniform pressure is _________…
  12. To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting,…
  13. Which of the following is an example of a higher pair?
  14. The factional torque for square thread at the mean radius r while raising load W is given by
  15. Peaucelliers mechanism has
  16. The motion between a pair which takes place in __________ is known as incompletely constrained motion.
  17. When the nature of contact between the elements of a pair is such that one element can turn about the…
  18. Klein's construction can be used to determine acceleration of various parts when the crank is at
  19. The acceleration of the reciprocating roller follower when it has contact with the straight flanks of…
  20. A single degree of freedom system is given by, m × (d²x/dt²) + c × (dx/dt) + sx…
  21. The partial balancing means
  22. The critical speed of a shaft depends upon its
  23. In a four bar chain or quadric cycle chain
  24. Governor is used in automobile to
  25. The Bifilar suspension method is used to determine
  26. Transmission of power from the engine to the rear axle of an automobile is by means of
  27. Which gear is used for connecting two coplanar and intersecting shafts?
  28. When the particles of a body moves perpendicular to its axis, then the body is said to have
  29. Frequency of vibrations is usually expressed in
  30. In a kinematic chain, a quaternary joint is equivalent to