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You Are On Multi Choice Question Bank SET 1424

71201. If the gravitational acceleration at any place is doubled, then the weight of a body will be

71202. The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is

71203. The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

71204. The velocity ratio for the second system of pulleys is n.

71205. The law of motion involved in the recoil of gun is

71206. When a particle moves along a circular path, its acceleration has two components, one is normal component and the other is tangential component of acceleration.

71207. A machine which is not capable of doing any work in the reversed direction, after the effort is removed, is called a reversible machine.

71208. The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is

71209. When two elastic bodies collide with each other,

71210. The centre of gravity of a triangle lies at a point where its medians intersect each other.

71211. In order to double the period of simple pendulum, the length of the string should be

71212. The moment of inertia of a square of side a about its base is a4/ 3.

71213. If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys

71214. The centre of gravity of a right angled triangle lies at its geometrical centre.

71215. Vectors method for the resultant force is also called polygon law of forces.

71216. Two equal and opposite parallel forces whose lines of action are different form a couple.

71217. When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.

71218. A circular hole of 50 mm diameter is cut out from a circular disc of 100 mm diameter as shown in the below figure. The centre of gravity of the section will lie

71219. The maximum velocity of a particle moving with simple harmonic motion is

71220. The loss of kinetic energy due to direct impact of two bodies __________ upon the value of coefficient of restitution.

71221. A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

71222. The Cholas maintained close political, and matrimonial relations with?

71223. The unit of power in S.I. units is

71224. According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through centre of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)

71225. The resultant of two equal forces P making an angle θ, is given by

71226. The force, by which the body is attracted, towards the centre of the earth, is called

71227. Coplaner concurrent forces are those forces which

71228. The power developed by a body acted upon by a torque T newton metre (N - m) and revolving at ω radian/s is given by

71229. The time taken by a particle for one complete oscillation is known as periodic time.

71230. The velocity ratio of a first system of pulleys with 4 pulleys is

71231. One joule means that

71232. The moment of inertia of a sphere of mass m and radius r, about an axis tangential to it, is

71233. The velocity ratio for the first system of pulleys is(where n is the number of pulleys.)

71234. The ideal angle of banking provided on the curves on roads depends upon

71235. If a pendulum is taken 1 km below the earth surface in a mine, it will __________ in time.

71236. The moment of inertia of a thin disc of mass m and radius r, about an axis through its centre of gravity and perpendicular to the plane of the disc is

71237. The linear velocity of a body rotating at ω rad / s along a circular path of radius r is given by

71238. A machine which is capable of doing work in the reversed direction, after the effort is removed, is called a non-reversible machine.

71239. The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

71240. A non-reversible machine is also called a self-locking machine.

71241. Mass moment of inertia of a thin rod about its one end is __________ the mass moment of inertia of the same rod about its mid-point

71242. Moment of inertia of a hollow rectangular section as shown in the below figure about Y-Y axis, is not the same as that about X-X axis.

71243. The angle of the inclined plane at which a body just begins to slide down the plane, is called helix angle.

71244. The forces, which meet at one point and their lines of action also lie on the same plane, are known as

71245. The amount by which the outer edge of the rail is raised, is known as super-elevation.

71246. The unit of energy in S.I. units is

71247. The angle of inclination of the plane at which the body begins to move down the plane, is called

71248. If Square root of 3=732 then nearest value of 1/ Square root 3 among given values is

71249. The potential energy stored by a spring in compression, is called strain energy.

71250. The moment of a force

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