Applied Mechanics and Graphic Statics

201. Power can be expressed as

  1. Work/energy
  2. Work/time
  3. Work × time
  4. Work/distance

Correct answer: (B)
Work/time

202. Power developed by a torque, is

  1. NT kg m/min
  2. NT/4500 h.p
  3. NT /60 watts
  4. All the above

Correct answer: (D)
All the above

203. Principle of Transmissibility of Forces states that, when a force acts upon a body, its effect is

  1. Maximum if it acts at the centre of gravity of the body
  2. Different at different points on its line of
  3. Same at every point on its line of action
  4. Minimum if it acts at the C.G. of the body

Correct answer: (C)
Same at every point on its line of action

204. Rate of change of angular momentum is equal to

  1. Force
  2. Torque
  3. Linear momentum
  4. Impulse

Correct answer: (B)
Torque

205. Select the correct statement

  1. The body centrode rolls on the space centrode
  2. The space centrode rolls on the body centrode
  3. Both body and space centrodes may role on each other
  4. The body centrode never touches space centrode

Correct answer: (A)
The body centrode rolls on the space centrode

206. The acceleration of a particle moving along the circumference of a circle with a uniform speed, is directed

  1. Radially
  2. Tangentially at that point
  3. Away from the centre
  4. Towards the centre

Correct answer: (B)
Tangentially at that point

207. The acceleration of a train starting from rest at any instant is 1/6(V + 1) m/sec2 where is the velocity of the train in m/sec. The train will attain a velocity of 36 km/hour after travelling a distance of

  1. 2000 m
  2. 2100 m
  3. 2200 m
  4. 2300 m

Correct answer: (D)
2300 m

208. The angle of friction is:

  1. The ratio of the friction and the normal reaction
  2. The force of friction when the body is in motion
  3. The angle between the normal reaction and the resultant of normal reaction and limiting friction
  4. The force of friction at which the body is just about to move

Correct answer: (C)
The angle between the normal reaction and the resultant of normal reaction and limiting friction

209. The angle of projection at which the horizontal range and maximum height of a projectile are equal to

  1. 36°
  2. 45°
  3. 56°
  4. 76°

Correct answer: (D)
76°

210. The angle of projection for a range is equal to the distance through which the particle would have fallen in order to acquire a velocity equal to the velocity of projection, will be

  1. 30°
  2. 45°
  3. 60°
  4. 75°

Correct answer: (D)
75°

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