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- Question
The unit of force in S.I. system of units is
Options- A. dyne
- B. kilogram
- C. newton
- D. watt
- Correct Answer
- newton
- 1. 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
- 2. D' Alembert's principle basically depends upon Newton's second law of motion.
Options- A. Correct
- B. Incorrect Discuss
- 3. 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
- 4. The moment of inertia of a rectangular section 3cm wide and 4cm deep about X-X axis is
Options- A. 9cm4
- B. 12cm4
- C. 16cm4
- D. 20cm4 Discuss
- 5. In collision of elastic bodies, the coefficient of restitution is the ratio of the relative velocity after impact to the relative velocity before impact.
Options- A. True
- B. False Discuss
- 6. The negative acceleration is called retardation.
Options- A. True
- B. False Discuss
- 7. The length of a second's pendulum is
Options- A. 94.9cm
- B. 99.4cm
- C. 100cm
- D. 101cm Discuss
- 8. 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
- 9. Joule is the unit of
Options- A. force
- B. work
- C. power
- D. velocity Discuss
- 10. 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
Engineering Mechanics problems
Search Results
Correct Answer: second's pendulum
Correct Answer: Correct
Correct Answer: unlike parallel forces
Correct Answer: 16cm4
Correct Answer: True
Correct Answer: True
Correct Answer: 99.4cm
Correct Answer: a non-reversible machine
Correct Answer: work
Correct Answer: 0.5 mv2
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