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MCQs

Total Questions : 735 | Page 7 of 74 pages
Question 61. Forces are called coplanar when all of them acting on body lie in
  1.    one point
  2.    one plane
  3.    different planes
  4.    perpendicular planes
 Discuss Question
Answer: Option B. -> one plane
Question 62. Which of the following is not the unit of distance ?
  1.    angstrom
  2.    light year
  3.    millimeter
  4.    milestone.
 Discuss Question
Answer: Option D. -> milestone.
Question 63. Which of the following is not the unit of pressure ?
  1.    kg/cm
  2.    atmosphere
  3.    mm of wcl
  4.    newton.
 Discuss Question
Answer: Option D. -> newton.
Question 64. Forces are called concurrent when their lines of action meet in
  1.    one point
  2.    two points
  3.    plane
  4.    perpendicular planes
 Discuss Question
Answer: Option A. -> one point
Question 65. 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 center of circular plate
  1.    0.5 cm
  2.    1.0 cm
  3.    1.5 cm
  4.    2.5 cm
 Discuss Question
Answer: Option A. -> 0.5 cm
Question 66. A framed structure is perfect if it contains members equal to (where n = number of joints in a frame)
  1.    2n-3
  2.    n-l
  3.    2n-l
  4.    n-2
 Discuss Question
Answer: Option A. -> 2n-3
Question 67. In the equation of virtual work, following force is neglected
  1.    reaction of any smooth surface with which the body is in contact
  2.    reaction of a rough surface of a body which rolls on it without slipping
  3.    reaction at a point or an axis, fixed in space, around which a body is con-strained to turn
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 68. Which of the following is the example of lever of first order?
  1.    Arm of man
  2.    Pair of scissors
  3.    Pair of clinical tongs
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 69. The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is
  1.    same
  2.    double
  3.    half
  4.    four times
 Discuss Question
Answer: Option B. -> double
Question 70. Two non-collinear parallel equal forces acting in opposite direction
  1.    balance each other
  2.    constitute a moment
  3.    constitute a couple
  4.    constitute a moment of couple
 Discuss Question
Answer: Option C. -> constitute a couple

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