Discussion
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- Question
The frequency of oscillation of a torsional pendulum is
Options- A.
- B.
- C.
- D.
- Correct Answer
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- 1. The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in magnitude and direction by the third side of a triangle, taken in opposite order.
Options- A. True
- B. False Discuss
- 2. If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
Options- A. 30°
- B. 60°
- C. 90°
- D. 120° Discuss
- 3. The velocity ratio in case of an inclined plane inclined at angle ? to the horizontal and weight being pulled up the inclined plane by vertical effort is
Options- A. sin ?
- B. cos ?
- C. tan ?
- D. cosec ? Discuss
- 4. When a rigid body is suspended vertically, and it oscillates with a small amplitude under the action of the force of gravity, the body is known as
Options- A. simple pendulum
- B. compound pendulum
- C. torsional pendulum
- D. second's pendulum Discuss
- 5. The angle between two forces when the resultant is maximum and minimum respectively are
Options- A. 0° and 180°
- B. 180° and 0°
- C. 90° and 180°
- D. 90° and 0° Discuss
- 6. The Bernoulli's equation is based on the assumption that
Options- A. there is no loss of energy of the liquid flowing
- B. the velocity of flow is uniform across any cross-section of the pipe
- C. no force except gravity acts on the fluid
- D. all of the above Discuss
- 7. The centre of buoyancy is the centre of area of the immersed body.
Options- A. Correct
- B. Incorrect Discuss
- 8. A flow in which the volume of a fluid and its density does not change during the flow is called __________ flow.
Options- A. incompressible
- B. compressible Discuss
- 9. The loss of head due to an obstruction in a pipe is twice the loss of head at its entrance.
Options- A. Agree
- B. Disagree Discuss
- 10. The discharge through a siphon spillway is
Options- A. Cd x a2gH
- B. Cd x a2g x H3/2
- C. Cd x a2g x H2
- D. Cd x a2g x H5/2 Discuss
Engineering Mechanics problems
Search Results
Correct Answer: True
Correct Answer: 120°
Correct Answer: sin ?
Correct Answer: compound pendulum
Correct Answer: 0° and 180°
Correct Answer: all of the above
Correct Answer: Correct
Correct Answer: incompressible
Correct Answer: Agree
Correct Answer: Cd x a2gH
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