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- Question
A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length
Options- A. must be decreased
- B. must be increased
- C. is not changed but weight of the bob is increased
- D. is not changed but weight of the bob is decreased
- E. none of these.
- Correct Answer
- must be increased
- 1. The characteristic of a couple, is :
Options- A. algebraic sum of forces, constituting a couple is zero
- B. algebraic sum of moments of forces, constituting a couple, about any poin, is same
- C. a couple can be balanced only by a couple but of opposite sense
- D. a couple can be never the balanced by a single force
- E. all the above. Discuss
- 2. The distance of the c.g. of a semi-circular arc of radius r from its diameter along the radius of symmetry, is
Options- A.
- B.
- C.
- D.
Discuss
- 3. If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is
Options- A. P + Q
- B. P/Q
- C. Q/P
- D. P - Q
- E. Q - P. Discuss
- 4. Effect of a force on a body depends upon its
Options- A. direction
- B. magnitude
- C. position
- D. all the above. Discuss
- 5. Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is
Options- A. 2 sec
- B. 3 sec
- C. 4 sec
- D. 5 sec
- E. 6 sec. Discuss
- 6. The resultant of the forces acting on a body will be zero if the body
Options- A. rotates
- B. moves with variable velocity in a straight line
- C. moves along a curved path
- D. does not move at all. Discuss
- 7. Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,
Options- A. dip of the cable increases
- B. length of the cable increases
- C. dip of the cable decreases
- D. none of the these. Discuss
- 8. If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called
Options- A. virtual work
- B. imaginary work
- C. zero work
- D. negative work. Discuss
- 9. A body is said to move with Simple Harmonic Motion if its acceleration, is
Options- A. always directed away from the centre, the point of reference
- B. proportional to the square of the distance from the point of reference
- C. proportional to the distance from the point of reference and directed towards it
- D. inversely proportion to the distance from the point of reference
- E. none of these. Discuss
- 10. Two forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of
Options- A. 5 Newtons
- B. 8 Newtons
- C. 10 Newtons
- D. 12 Newtons. Discuss
Applied Mechanics problems
Search Results
Correct Answer: all the above.
Correct Answer:
Correct Answer: P - Q
Correct Answer: all the above.
Correct Answer: 4 sec
Correct Answer: does not move at all.
Correct Answer: dip of the cable decreases
Correct Answer: negative work.
Correct Answer: proportional to the distance from the point of reference and directed towards it
Correct Answer: 10 Newtons
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