A force is completely defined when we specifyall of the abovenone of the above.

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Question:
A force is completely defined when we specifyall of the abovenone of the above.

1.magnitude

2.direction

3.point of application

4.all of the above.

More MCQS Questions and answers

  1. If a number of forces act simultaneously on a particle it is possibleto replace them by a couple and a force.
  2. If n = number of members andy = number of joints then for a perfect frame n =
  3. If three forces acting in different planes can be represented by a triangle these will be in
  4. If two equal forces of magnitude P act at an angle 9? their resultant will be
  5. In detennining stresses in frames by methods of sections the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more thanfour members with two known forces.
  6. The algebraic sum of moments of the forces forming couple about any point in their plane is
  7. The centre of gravity of a triangle lies at the point of
  8. The resolved part of the resultant of two forces inclined at an angle 9 in a given direction is equal tothe sum of the forces multiplied by the tangent of 9.
  9. The units of moment of inertia of an area are
  10. Which of the following is not the unit of pressure ?kg/cm
  11. 1# Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one
  12. 18. Which of the following is not the unit of work energy and heat ?
  13. 20. The weight of a body is due tocgravitational pull exerted by the earth
  14. A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to
  15. A force acting on a body maybalance the other forces acting on itretard its motion
  16. A force is completely defined when we specifyall of the abovenone of the above.
  17. A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
  18. A trolley wire weighs 1.2 kg per metre length. The ends of the wire are attached to two poles 20 metres apart. If the horizontal tension is 1500 kg find the dip in the middle of the span
  19. According to principle of transmissibility of forces the effect of a force upon a body isnone of the above.
  20. Centre of gravity of a solid cone lies on the axis at the height
  21. Centre of gravity of a thin hollow cone lies on the axis at a height ofone-fourth of the total height above basethree-eighth of the total height above the basenone of the above.
  22. Centre of percussion isthe point of metacentrepoint of suspension
  23. Effect of a force on a body depends upon
  24. Forces are called concurrent when their lines of action meet in
  25. Forces are called coplanar when all of them acting on body lie in
  26. From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate0.25 cm.
  27. In the lever of third order load W effort P and fulcrum F are oriented as follows
  28. The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle ofbalance of force
  29. The C.G. of a solid hemisphere lies on the central radius 3r
  30. The centre of gravity of a uniform lamina lies atall of the above
  31. The centre of percussion of the homogeneous rod of length L suspended at the top will be3L/8.
  32. The forces which meet at one point but their lines of action do not lie in a plane are called
  33. The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is
  34. The magnitude of two forces which when acting at right angle produce resultant force of VlOkg and when acting at 60? produce resultant of Vl3 kg. These forces are
  35. The maximum frictional force which comes into play when a body just begins to slide over another surface is called
  36. The possible loading in various members of framed structures are
  37. The product of either force of couple with the arm of the couple is calledresulting couplenone of the above.
  38. The unit of power in S.I. units is
  39. The unit of work or energy in S.I. units iswatt
  40. The units of moment of inertia of mass arem2/kg.
  41. Two non-collinear parallel equal forces acting in opposite direction
  42. When trying to turn a key into a lock following is appliedmoment
  43. Which of the following do not have identical dimensions ?Kinetic energy and potential energy
  44. Which of the following is a vector quantityenergy
  45. Which of the following is not a scalar quantityvolumeacceleration.
  46. Which of the following is not a vector quantity
  47. Which of the following is not the unit of distance ?millimetre
  48. Which of the following is not the unit of energy
  49. Which of the following is not the unit of power ?kg m/sec
  50. Which of the following is the example of lever of first order
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