logo

CuriousTab

CuriousTab

Engineering Mechanics problems

  • 1. Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to

  • Options
  • A. area of the triangle
  • B. twice the area of the triangle
  • C. half the area of the triangle
  • D. none of these
    • Discuss
  • 2. A machine which is capable of doing work in the reversed direction, after the effort is removed, is called a non-reversible machine.

  • Options
  • A. Yes
  • B. No
    • Discuss
  • 3. A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

  • Options
  • A. v
  • B. 2v
  • C. 4v
  • D. 8v
    • Discuss
  • 4. Vectors method for the resultant force is also called polygon law of forces.

  • Options
  • A. Correct
  • B. Incorrect
    • Discuss
  • 5. If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys

  • Options
  • A. first
  • B. second
  • C. third
    • Discuss
  • 6. Moment of inertia of a hollow rectangular section as shown in the below figure about Y-Y axis, is not the same as that about X-X axis.
    Mechanical Engineering Engineering Mechanics: Moment of inertia of a hollow rectangular section as shown in the below figure about Y-Y

  • Options
  • A. Yes
  • B. No
    • Discuss
  • 7. The centre of gravity of a triangle lies at a point where its medians intersect each other.

  • Options
  • A. True
  • B. False
    • Discuss
  • 8. One joule means that

  • Options
  • A. work is done by a force of 1 N when it displaces a body through 1m
  • B. work is done by a force of 1 kg when it displaces a body through 1 m
  • C. work is done by a force of 1 dyne when it displaces a body through 1 cm
  • D. work is done by a force of 1 g when it displaces a body through 1 cm
    • Discuss
  • 9. When a train is rounding a curve, the side thrust on the wheel flanges is prevented by raising the outer edge of the rail.

  • Options
  • A. Yes
  • B. No
    • Discuss
  • 10. The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (?) is

  • Options
  • A. ?/2
  • B. 30° + ?/2
  • C. 45° + ?/2
  • D. 60° + ?/2
    • Discuss

First 18 19 20 ... 25 .. 30 31 Last

Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.