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MCQs

Total Questions : 1033 | Page 98 of 104 pages
Question 971. In the lever of third order, load W, effort P and fulcrum F are oriented as follows
  1.    W between P and F
  2.    W, P and F all on one side
  3.    F between W and P
  4.    P between W and F
 Discuss Question
Answer: Option A. -> W between P and F
Question 972. A number of forces acting at a point will be in equilibrium if
  1.    Two resolved parts in two directions at right angles are equal
  2.    Sum of resolved parts in any two perpendicular directions are both zero
  3.    All of them are inclined equally
  4.    Their total sum is zero
 Discuss Question
Answer: Option B. -> Sum of resolved parts in any two perpendicular directions are both zero
Question 973. In ideal machines
  1.    mechanical advantage is less than velocity ratio
  2.    mechanical advantage is greater than velocity ratio
  3.    mechanical advantage is equal to velocity ratio
  4.    mechanical advantage is unity
 Discuss Question
Answer: Option C. -> mechanical advantage is equal to velocity ratio
Question 974. Coefficient of friction is the
  1.    the friction force acting when the body is in motion
  2.    ratio of limiting friction and normal reaction
  3.    angle between normal reaction and the resultant of normal reaction and the limiting friction
  4.    the friction force acting when the body is just about to move
 Discuss Question
Answer: Option B. -> ratio of limiting friction and normal reaction
Question 975. Pick up wrong statement about friction force for dry surfaces. Friction force is
  1.    dependent on the materials of contact surface
  2.    proportional to velocity of sliding
  3.    proportional to normal load between the surfaces
  4.    independent of the area of contact surfaces
 Discuss Question
Answer: Option B. -> proportional to velocity of sliding
Question 976. Which of the following is not the unit of energy
  1.    kg m
  2.    kcal
  3.    watt hours
  4.    wattr
 Discuss Question
Answer: Option D. -> wattr
Question 977. A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to
  1.    W
  2.    Wtan(a +
  3.    W sin (a + $)
  4.    Wan(a-)
 Discuss Question
Answer: Option B. -> Wtan(a +
Question 978. If n = number of members andy = number of joints, then for a perfect frame, n =
  1.    (d)3/-2
  2.    2/-3
  3.    j-2
  4.    (b)2j-l
 Discuss Question
Answer: Option B. -> 2/-3
Question 979. Which of the following is not the unit of work, energy and heat ?
  1.    hp
  2.    kWhr
  3.    kcal
  4.    kg m
 Discuss Question
Answer: Option A. -> hp
Question 980. The possible loading in various members of framed structures are
  1.    All of the listed here
  2.    compression or tension
  3.    shear or tension
  4.    buckling or shear
 Discuss Question
Answer: Option B. -> compression or tension

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