Home

For a shoe brake, the equivalent coefficient of friction is equal to (where μ = Actual coefficient of friction, and θ = Semi-block angle)

A. 2μ sinθ/(θ + sinθ)

B. μ sinθ/(2θ + sin 2θ)

C. 4μ sinθ/(θ + sinθ)

D. 4μ sinθ/(2θ + sin 2θ)

Correct Answer : D.


Download Objective type questions of Machine Design PDF

Visit our PDF store

Get all objective type questions of Machine Design MCQ

Also checkout these categories

Civil Engineering MCQ Carboxylic Acids MCQ Angiosperms (Inflorescence, Flower and Fruit) MCQ WAN MCQ Origin of Life and Organic Evolution MCQ C# Programming MCQ Accounts Fundamental MCQ Heat & Mass Transfer MCQ Anatomy and Physiology of Skeletal System MCQ Strength of Materials MCQ Rearrangement Set 14 MCQ Endocrine System MCQ

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

Submit
Load More..
You can do it
  1. In a journal bearing, the load on the bearing is __________ to the axis of the journal.
  2. Fabric belts are used in industrial applications because
  3. Form coefficient of spring is
  4. If a load W is applied instantaneously on a bar; Then the stress induced in bar will
  5. During hot working of metals,
  6. In case of pressure vessels having open ends, the fluid pressure induces
  7. In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction…
  8. Which of the following key is preferred for the condition when a large amount of impact type torque…
  9. The piston pin bearings in heavy duty diesel engines are
  10. The property of a material which enables it to resist fracture due to high impact loads is known as
  11. Pick up wrong statement. Fatigue strength can be increased by
  12. According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal…
  13. The suitable material for belt used in flour mill is
  14. Screws used for power transmission should have
  15. The backlash for spur gears depends upon
  16. Soderberg relation is based on __________ of the material whereas all other failure relation for dynamic…
  17. In thrust bearings, the load acts
  18. The function of a washer is to
  19. Oil in journal bearing should be applied at the point where load is
  20. The shear stress in a beam varies from zero at the outer fibres to a maximum at the________.
  21. The resistance to fatigue of a material is measured by
  22. In a flange coupling, the flanges are coupled together by means of
  23. Taper usually provided on cotter is
  24. If threads on a bolt are left hand, threads on nut will be
  25. The form factor of a helical gear __________ with the increase in the helix angle.
  26. In leaf springs, the longest leaf is known as
  27. In worm, gears, pitch lead angle is
  28. Creep in belt is due to
  29. When a helical compression spring is cut into halves, the stiffness of the resulting spring will be
  30. When the bolt is very yielding as compared to the connected members, then the resultant load on the…