301. A kinematic chain is known as a mechanism when
302. When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.
303. There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is
304. The Klein's diagram is used when
305. Kanha national park situated in?
306. An imaginary circle which by pure rolling action, gives the same motion as the actual gear, is called
307. A mechanism consisting of more than four links is called a compound mechanism.
308. The natural frequency of free transverse vibrations is same as that of free longitudinal vibrations.
309. The throw of the eccentric is equal to the valve travel.
310. The addendum is the radial distance of tooth from the pitch circle to the top of the tooth.
311. A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)
312. The height of a Watt's governor (in metres) is equal to (where N = Speed of the arm and ball about the spindle axis)
313. V-belts are usually used for
314. Sensitiveness of the governor is defined as the ratio of the
315. The two parallel and coplaner shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as
316. The relative velocity of B with respect to A in a rigid link AB is
317. In a pantograph, all the pairs are
318. The velocity of a body moving with simple harmonic motion is __________ at the mean position.
319. A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2 L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will
320. If the pressure angle is __________ , a reciprocating follower will jam in its bearings.
321. The D-slide valve is also known as
322. When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a
323. The magnitude of velocities of the points on a rigid link is