Engineering :: Applied Mechanics

@ : Home > Mechanical Engineering > Applied Mechanics

201.

If for power transmission a gear train consisting of 11 gears is used, then

A.	the motion of driver and follower will be in the same direction	B.	The motion of driver and follower will be in the opposite direction
C.	either of (A) or (B) above	D.	None of the above

202.

If for power transmission a gear train consisting of 8 gears is used, then

A.	the motion of driver and follower will be in the same direction	B.	the motion of driver and follower will be in the opposite directions
C.	either of (A) or (B) above	D.	None of the above

203.

A cable is supported at A and B, in which B is higher than A. The tension in the cable will be maximum at

A.	A	B.	B
C.	C	D.	A and B

204.

A machine requires an effort of 10 kg to lift a load of 250 kg and an effort of 13 kg for a load of 400 kg. The effort required to lift a load of 500 kg will be

A.	15 kg	B.	25 kg
C.	35 kg	D.	45 kg

205.

The polar moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter of 6 cm will be

A.	137.5 cm4	B.	275 cm4
C.	550 cm4	D.	1100 cm4

206.

The power of a locomotive is 315 kW and the total weight of the train is 2000 kN. If the track resistance is qN per kN, the maximum speed that the locomotive can attain on level track will be

A.	103 kmph	B.	83 kmph
C.	63 kmph	D.	43 kmph

207.

A hammer gains 50 Ns momentum in 0.05 sec. The average force on the hammer will be

A.	1000 N	B.	500 N
C.	1500 N	D.	2000 N

208.

For a self locking lifting machine, the efficiency must be

A.	100 percent	B.	more than 50 percent
C.	50 percent	D.	less than 50 percent

209.

A grinding wheel rotates at 3000 rpm. When power supply is cut off the wheel stops in 5 sec. The number of revolutions made by the wheel before coming to rest would be

A.	3000	B.	1000
C.	500	D.	250

210.

A particle in SHM while passing through mean position will have

A.	maximum kinetic energy and maximum potential energy	B.	maximum kinetic energy and minimum potential energy
C.	minimum kinetic energy and maximum potential energy	D.	average kinetic energy and average potential energy.