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- Question
A block ot mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will __________ with the increase in coefficient of friction.
Options- A. increase
- B. decrease
- C. not be effected
- Correct Answer
- increase
- 1. A framed structure is imperfect, if the number of members are __________ (2j - 3).
Options- A. equal to
- B. less than
- C. greater than
- D. either (b) or (c) Discuss
- 2. The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of ? rad / s2, is
Options- A. a = ?/ r
- B. a = ?.r
- C. a = r / ?
- D. none of these Discuss
- 3. When a particle moves along a straight path, there will be centripetal acceleration as well as tangential acceleration.
Options- A. Correct
- B. Incorrect Discuss
- 4. Moment of inertia of a circular section about its diameter (d) is
Options- A. ?d3/16
- B. ?d3/32
- C. ?d4/32
- D. ?d4/64 Discuss
- 5. Whenever a force acts on a body and the body undergoes a displacement, then
Options- A. work is said to be done
- B. power is being transmitted
- C. body has kinetic energy of translation
- D. none of these Discuss
- 6. The rate of doing work is known as
Options- A. potential energy
- B. kinetic energy
- C. power
- D. none of these Discuss
- 7. The centre of gravity of a right circular solid cone is at a distance of __________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)
Options- A. h/2
- B. h/3
- C. h/4
- D. h/6 Discuss
- 8. If three coplaner forces acting on a point are in equilibrium, then each force is proportional to the sine, of the angle between the other two.
Options- A. Correct
- B. Incorrect Discuss
- 9. The unit of work in S.I. units is
Options- A. newton
- B. erg
- C. kg-m
- D. joule Discuss
- 10. Onejoule is equal to
Options- A. 0.1 N-m
- B. 1 N-m
- C. 10 N-m
- D. 100 N-m Discuss
Engineering Mechanics problems
Search Results
Correct Answer: either (b) or (c)
Correct Answer: a = ?.r
Correct Answer: Incorrect
Correct Answer: ?d4/64
Correct Answer: work is said to be done
Correct Answer: power
Correct Answer: h/4
Correct Answer: Correct
Correct Answer: joule
Correct Answer: 1 N-m
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