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MCQs

Total Questions : 1033 | Page 1 of 104 pages
Question 1. 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.     W sin (a + $)
  3.     Wtan(a +
  4.     Wan(a-)
 Discuss Question
Answer: Option C. ->  Wtan(a +
Question 2. In the lever of third order, load w, effort p and fulcrum f are oriented as follows
  1.     W between P and F
  2.     F between W and P
  3.     P between W and F
  4.     W, P and F all on one side
 Discuss Question
Answer: Option A. ->  W between P and F
Question 3. The c.g. of a plane lamina will not be at its geometrical centre in the case of a
  1.     right angled triangle
  2.     equilateral triangle
  3.     square
  4.     circle
 Discuss Question
Answer: Option A. ->  right angled triangle
Question 4. The unit of work or energy in s.i. units is
  1.     newton
  2.     pascal
  3.     watt
  4.     joule.
 Discuss Question
Answer: Option D. ->  joule.
Question 5. A force is completely defined when we specify
  1.     magnitude
  2.     direction
  3.     point of application
  4.     all of the above
 Discuss Question
Answer: Option D. ->  all of the above
Question 6. Which of the following is not the unit of power ?
  1.     kW (kilowatt)
  2.     hp (horse power)
  3.     kg m/sec
  4.     kcal/kg sec.
 Discuss Question
Answer: Option D. ->  kcal/kg sec.
Question 7. 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
  1.     ellipse
  2.     hyperbola
  3.     parabola
  4.     circle
 Discuss Question
Answer: Option B. ->  hyperbola
Question 8. A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. then which is correct statement about density of metal
  1.     density of metal can’t be determined
  2.     metal is twice as dense as water
  3.     metal will float in water
  4.     metal is twice as dense as unknown fluid
 Discuss Question
Answer: Option A. ->  density of metal can’t be determined
Question 9. Coulomb friction is the friction between
  1.     bodies having relative motion
  2.     two dry surfaces
  3.     two lubricated surfaces
  4.     solids and liquids
 Discuss Question
Answer: Option A. ->  bodies having relative motion
Question 10. In ideal machines
  1.     mechanical advantage is greater than velocity ratio
  2.     mechanical advantage is equal to velocity ratio
  3.     mechanical advantage is less than velocity ratio
  4.     mechanical advantage is unity
 Discuss Question
Answer: Option B. ->  mechanical advantage is equal to velocity ratio

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