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________ is an inversion of Double slider crank chain.

A. Coupling rod of a locomotive

B. Scotch yoke mechanism

C. Hand pump

D. Reciprocating engine

Correct Answer : B.


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  1. In a multiple V-belt drive, if one of the belts is broken, then we should replace
  2. Minimum number of teeth for involute rack and pinion arrangement for pressure angle of 20° is
  3. The ratio of the number of teeth to the pitch circle diameter in millimetres, is called
  4. A foot step bearing and rotor of a vertical turbine form examples of
  5. Angle of descent of cam is defined as the angle
  6. Typewriter constitutes
  7. In a pantograph, all the pairs are
  8. The maximum frictional force, which comes into play, when a body just begins to slide over the surface…
  9. The frictional torque transmitted in a truncated conical pivot bearing, considering uniform pressure,…
  10. Coriolis component acts
  11. A reed type tachometer use the principle of
  12. A fixed gear having 200 teeth is in mesh with another gear having 50 teeth. The two gears are connected…
  13. The secondary unbalanced force is maximum __________ in one revolution of the crank.
  14. In a shaper mechanism, the Coriolis component of acceleration will
  15. The frictional torque transmitted in a flat pivot bearing, considering uniform pressure, is (where μ…
  16. The face of the tooth is the
  17. The periodic time is given by (where ω = Angular velocity of the particle in rad/s)
  18. Effort of a governor is the
  19. When the primary direct crank of a reciprocating engine makes an angle of θ with the line of stroke,…
  20. Balancing of rotating and reciprocating parts of an engine is necessary when it runs at
  21. In a differential band brake as shown in the below figure, if the length OB is greater than OA, then…
  22. When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move…
  23. For dynamic balancing of a shaft
  24. In order to double the period of a simple pendulum, the length of the string should be
  25. In a four stroke I.C. engine, the turning moment during the compression stroke is
  26. For an involute gear, the ratio of base circle radius and pitch circle radius is equal to
  27. The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.
  28. The maximum efficiency of spiral gears is (where θ = Shaft angle, and φ = Friction angle)
  29. The maximum efficiency of a screw jack is
  30. The train value of a gear train is