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Machine screws are

A. Similar to small size tap bolts except that a greater variety of shapes of heads are available

B. Slotted for a screw driver and generally used with a nut

C. Used to prevent relative motion between two parts

D. Similar to stud

Correct Answer : B.


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  1. The static tooth load should be __________ the dynamic load.
  2. When two nonintersecting and non-coplanar shafts are connected by gears, the arrangement is known as
  3. A universal coupling is used to connect two shafts
  4. A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder…
  5. The shear stress at a point in a shaft subjected to a torque is
  6. The acme threads are usually found on
  7. When a helical compression spring is cut into halves, the stiffness of the resulting spring will be
  8. The period during which the cam follower remains at rest, when cam moves, is known as
  9. In second type of levers,
  10. The fatigue stress concentration factor is defined as
  11. A stud
  12. The ratio of endurance limit in shear to the endurance limit in flexure is
  13. Which is positive drive?
  14. In a transverse fillet welded joint, the size of weld is __________ the throat of weld.
  15. Which of the following coupling is used to connect two shafts which have both lateral and angular misalignment?
  16. For a square key made of mild steel, the shear and crushing strength are related as
  17. A localised compressive stress at the area of contact between two members is known as
  18. The ratio of pitch circle diameter in millimetres to the number of teeth, is called
  19. Oldham coupling is used to connect two shafts
  20. The form factor of a helical gear __________ with the increase in the helix angle.
  21. The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of…
  22. Fibrous fracture occurs in
  23. In skew bevel gearing, the axes of shafts are
  24. According to Indian standards, total numbers of tolerance grades are
  25. The material commonly used for machine tool bodies is
  26. A key capable of tilting in a recess milled out in a shaft is known as
  27. An open belt drive is used when
  28. The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive)…
  29. Tensile strength of a mild steel specimen can be roughly predicted from following hardness test
  30. A chain drive transmits __________ power as compared to belt drive.