201. In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is
202. The total motion possessed by a body, is called
203. A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:
204. If P is the force acting on the body, m is the mass of the body and a is the acceleration of the body, then according to Newton's second law of motion,
205. If the resultant of a number of forces acting on a body is zero, then the body will not be in equilibrium.
206. The friction experienced by a body, when at rest, is known as
207. The moment of inertia of a solid sphere of mass m and radius r is
208. The matter contained in a body, is called
209. The centre of percussion is below the centre of gravity of the body and is at a distance equal to
210. If a number of coplaner forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.
211. The forces, which do not meet at one point, but their lines of action lie on the same plane, are known as coplaner non-concurrent forces.
212. If three forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, the forces shall be in equilibrium.
213. The angle which the normal reaction makes with the resultant reaction is called angle of friction.
214. The law of the machine is(where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)
215. In a framed structure, as shown in the below figure, the force in the member AB is __________ the force in member AC.
216. Who among the following has been selected for the Evergreen Best Actor in British Film?
217. The moment of the force P about O as shown in the below figure is
218. According to lami's theorem
219. Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is __________ than that about X-X axis.
220. The amplitude is always __________ radius of the circle.
221. When a body falls freely under gravitational force, it possesses __________ weight.
222. The centre of gravity of a quadrant of a circle lies along its central radius (r) at a distance of
223. The reference to Hindus in Article 25 of the constitution does not include?
224. The maximum mechanical advantage of a lifting machine is
225. A machine having an efficiency greater than 50%, is known as