Home

Which of the following statement is correct as regard to the difference between a machine and a structure?

A. The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another

B. The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only

C. A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work

D. All of the above

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. A circle passing through the pitch point with its center at the center of cam axis is known as
  2. The condition for correct steering of a Davis steering gear is (where α = Angle of inclination…
  3. With single Hooke's joint it is possible to connect two shafts, the axes of which have an angular misalignment…
  4. To obviate axial thrust, following gear drive is used
  5. The Coriolis component of acceleration acts
  6. The contact ratio is given by
  7. A watt's governor can work satisfactorily at speeds from
  8. The number of links and instantaneous centers in a reciprocating engine mechanism are
  9. When one of the links of a kinematic chain is fixed, the chain is known as a
  10. A point on a link connecting double slider crank chain traces a
  11. Ackermann steering gear consists of
  12. The cam and follower is an example of
  13. The partial balancing means
  14. In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection…
  15. When the relation between the controlling force (Fc) and radius of rotation (r) for a spring controlled…
  16. The Hooke's joint consists of:
  17. Ball and a Socket forms a
  18. If D₁ and D₂ be the diameters of driver and driven pulleys, then belt speed is proportional…
  19. When the crank is at the inner dead centre, in a reciprocating steam engine, then the velocity of the…
  20. The direction of linear velocity of any point on a link with respect to another point on the same link…
  21. According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie…
  22. In a differential band brake as shown in the below figure, if the length OB is greater than OA, then…
  23. Oldham's coupling is the
  24. The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing…
  25. For a twin cylinder V-engine, the crank positions for primary reverse cranks and secondary direct cranks…
  26. When a body is subjected to transverse vibrations, the stress induced in a body will be
  27. The critical speed of a shaft with a disc supported in between is equal to the natural frequency of…
  28. The cam follower generally used in aircraft engines is
  29. When a ship travels in a sea, which of the effect is more dangerous
  30. A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut…