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  • Question

  • The centre of gravity of a trapezium with parallel sides a and b lies at a distance of y from the base b, as shown in the below figure. The value of y is
    The centre of gravity of a trapezium with parallel sides a and b lies at a distance of y from the ba


  • Options
  • A. The centre of gravity of a trapezium with parallel sides a and b lies at a distance of y from the ba
  • B. The centre of gravity of a trapezium with parallel sides a and b lies at a distance of y from the ba
  • C. The centre of gravity of a trapezium with parallel sides a and b lies at a distance of y from the ba
  • D. The centre of gravity of a trapezium with parallel sides a and b lies at a distance of y from the ba

  • Correct Answer
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    • Engineering Mechanics problems

    Search Results

    • 1. A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is

    • Options
    • A. 5
    • B. 10
    • C. 20
    • D. 40
      • Discuss
    • 2. The force which acts along the radius of a circle and directed towards the centre of the circle is known as centripetal force.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ .

    • Options
    • A. less than
    • B. greater than
      • Discuss
    • 4. Non-coplaner concurrent forces are those forces which

    • Options
    • A. meet at one point, but their lines of action do not lie on the same plane
    • B. do not meet at one point and their lines of action do not lie on the same plane
    • C. meet at one point and their lines of action also lie on the same plane
    • D. do not meet at one point, but their lines of action lie on the same plane
      • Discuss
    • 5. A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is

    • Options
    • A. reversible
    • B. non-reversible
    • C. ideal
      • Discuss
    • 6. Which of the following is a scalar quantity?

    • Options
    • A. Force
    • B. Speed
    • C. Velocity
    • D. Acceleration
      • Discuss
    • 7. The periodic time of a particle with simple harmonic motion is __________ proportional to the angular velocity.

    • Options
    • A. directly
    • B. inversely
      • Discuss
    • 8. The unit of mass moment of inertia in S.I. units is kg-m2.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. If a number of forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are not in equilibrium.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 10. The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as

    • Options
    • A. Newton's first law of motion
    • B. Newton's second law of motion
    • C. Newton's third law of motion
    • D. none of these
      • Discuss

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