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- Question
The length of a second's pendulum is
Options- A. 94.9cm
- B. 99.4cm
- C. 100cm
- D. 101cm
- Correct Answer
- 99.4cm
- 1. The negative acceleration is called retardation.
Options- A. True
- B. False Discuss
- 2. The unit of force in S.I. system of units is
Options- A. dyne
- B. kilogram
- C. newton
- D. watt Discuss
- 3. A pendulum which executes one beat per second is known as
Options- A. simple pendulum
- B. compound pendulum
- C. torsional pendulum
- D. second's pendulum Discuss
- 4. D' Alembert's principle basically depends upon Newton's second law of motion.
Options- A. Correct
- B. Incorrect Discuss
- 5. The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as
Options- A. coplaner concurrent forces
- B. coplaner non-concurrent forces
- C. like parallel forces
- D. unlike parallel forces Discuss
- 6. A screw jack used for lifting the loads is
Options- A. a reversible machine
- B. a non-reversible machine
- C. an ideal machine
- D. none of these Discuss
- 7. Joule is the unit of
Options- A. force
- B. work
- C. power
- D. velocity Discuss
- 8. When a body of mass m attains a velocity v from rest in time t, then the kinetic energy of translation is
Options- A. mv2
- B. mgv2
- C. 0.5 mv2
- D. 0.5 mgv2 Discuss
- 9. A number of forces acting at a point will be in equilibrium, if
Options- A. all the forces are equally inclined
- B. sum of all the forces is zero
- C. sumof resolved parts in the vertical direction is zero (i.e. ?V = 0)
- D. none of these Discuss
- 10. The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplaner concurrent forces.
Options- A. lie
- B. do not lie Discuss
Engineering Mechanics problems
Search Results
Correct Answer: True
Correct Answer: newton
Correct Answer: second's pendulum
Correct Answer: Correct
Correct Answer: unlike parallel forces
Correct Answer: a non-reversible machine
Correct Answer: work
Correct Answer: 0.5 mv2
Correct Answer: sumof resolved parts in the vertical direction is zero (i.e. ?V = 0)
Correct Answer: do not lie
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