Top 350+ Solved Applied Mechanics MCQ Questions Answer
Q. A point moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one. The locus of the path traced by the point will be a
a. Cycloid
b. Hyperbola
c. Circle
d. Involute
e. Ellipsc
Q. A cannon of barrel length 2 m fires a shell of weight 6 kg with a muzzle velocity of 50 m/sec. The force exerted by the gases on the shell would be approximately
a. 76 t
b. 19 t
c. 152 t
d. 8.5 t
e. 38 t
Q. According to the principle of transmissibility of forces, when a force acts upon a body ; its effect is
a. Minimum when it acts at C.G. of the body
b. Maximum when it acts at C.G. of the body
c. Different at different points of body
d. Same at every point in its line of action
e. None of the above
Q. Using force, length and time as fundamental quantities, the dimensions of mass would be
a. FL-2T+2
b. FL-1T+2
c. FL-1T+1
d. 107 dynes
e. FL-2T+1
Q. Minimum horsepower of pump required for filling 50m3 water tank, 20 metres high from ground in 30 minutes by lifting water from a well 5 metres below the ground level is
a. 5.45 KW
b. 7.5 KW
c. 6.81 KW
d. Tapered bearing
e. 66.8 KW
Q. A bob of simple pendulum oscillating in air is made to oscillate in oil. The time period will
a. Increase
b. Decrease
c. Not change
d. Decrease but reduction depends on viscosity of oil
e. None of the above
Q. Two forces of 6 and 8 kg act at right angles to each other, the resultant force will be
a. 100
b. 28
c. 41
d. 14
e. 10
Q. The resultant of coplaner parallel forces is found by load line diagram, while the position is found by
a. link polygen
b. funicular polygon
c. string polygon
d. any of the above
e. 107 dynes
Q. When a train is rounding a curve to prevent side thrust on the wheel flanges of cars
a. Opposite thrust is created to counter balance this thrust
b. Guide rail sections are provided to take care of thrust
c. Thrust eliminators are provided in the train
d. Outside rails are realised
e. Rail section is made thick on curvature
Q. Instantaneous centre for a rolling wheel on a straight track will be at
a. 107 dynes
b. A
c. B
d. C
e. D
Q. A 100 kg flywheel having a radius of gyration of 1 m is rotating at 1000 rpm. The angular momentum of the flywheel about its axis of rotation, in kg m2/s is
a. 1000
b. 107 dynes
c. 10,000
d. 10,470
e. 5235
Q. M.I. of sphere of 0.5 m radius about a mutually perpendicular axis (Z-axis) when its M.I. about X-axis and Y-axis are 50 kgm2 and 50 kgm2 is
a. 50 Kgm2
b. Tapered bearing
c. 100 Kgm2
d. 25 Kgm2
e. 12.5 Kgm2