Engineering Mechanics problems
- 1. two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are
Options- A. 15 N and 5 N
- B. 20 N and 5 N
- C. 15 N and 15 N
- D. none of these Discuss
Correct Answer: 15 N and 5 N
- 2. The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.
Options- A. equal to
- B. less than
- C. greater than Discuss
Correct Answer: equal to
- 3. The force which acts along the radius of a circle and directed away from the centre of the circle is called centrifugal force.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 4. The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as
Options- A. static friction
- B. dynamic friction
- C. limiting friction
- D. coefficient of friction Discuss
Correct Answer: limiting friction
- 5. The range of a projectile is maximum, when the angle of projection is
Options- A. 30°
- B. 45°
- C. 60°
- D. 90° Discuss
Correct Answer: 45°
- 6. The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 7. Static friction is always __________ dynamic friction.
Options- A. equal to
- B. less than
- C. greater than Discuss
Correct Answer: greater than
- 8. The friction experienced by a body, when in motion, is known as
Options- A. rolling friction
- B. dynamic friction
- C. limiting friction
- D. static friction Discuss
Correct Answer: dynamic friction
- 9. According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.
Options- A. True
- B. False Discuss
Correct Answer: False
- 10. In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will
Options- A. increase
- B. decrease
- C. remain the same Discuss
Correct Answer: decrease
More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.