Top 350+ Solved Applied Mechanics MCQ Questions Answer
Q. Newton, dyne and poundal are known as
a. absolute units
b. fundamental units
c. gravitational units
d. absolute units
e. 107 dynes
Q. ML2T-2 could be the dimension of
a. 107 dynes
b. moment of force
c. viscosity
d. mass moment of inertia
e. momentum
Q. The moving parts of a machine which weigh 1 tonne perform vertical simple harmonic motion with an amplitude of 2.5 cm and a period of 0.5 sec. The base of the machine weighs 3 tonnes and rests on the ground. Maximum reactions on the ground would be
a. 3.6 tonnes
b. 2.4 tonnes
c. 4.0 tonnes
d. 4.8 tonnes
e. 4.4 tonnes
Q. A ball is allowed to fall freely from a height of 3 metres on to a fixed plate. If the successive rebound heights are h1, h2, h3
a. 5 metres
b. 4.25 metre
c. 0.5 metre
d. 1 metre
e. Zero
Q. In the above problem, acceleration of crooshead at 30? phase equals
a. 107 dynes
b. 640 m/s2
c. 780 m/s2
d. 520 m/s2
e. 870 m/s2
Q. If a particle charges its angular velocity from 30 to 35 rpm in 20 seconds then it has angular acceleration of
a. 107 dynes
b. 30 rev/min2
c. 10 rev/min2
d. 20 rev/min2
e. 15 rev/min2
Q. Power required for a train weighing 200 Mg to move at a uniform speed of 60 Kmph up an incline of 1 in 200 is (Resistance due to friction is negligible)
a. 16.67 KW
b. 163.5 KW
c. 1000 KW
d. 9810 KW
e. Tapered bearing
Q. If air resistance is neglected, at the mid-point of its swing, the acceleration of the bob of a simple pendulum along its path is always
a. Increasing
b. Zero
c. A cycloid
d. Decreasing
e. A minimum but not equal to zero
Q. The force which produces an acceleration of 1 m/sec2 in a mass of 1 kg is called
a. 100 ergs
b. one Newton
c. one watt
d. One erg
e. one joule
Q. The maximum efficiency of a scres jack having square threads and friction angle of 30 degree will be
a. 20%
b. 11%
c. 5%
d. 33%
e. 9%
Q. Water rises in a capillary tube to a height h. It will rise to a height more than h.
a. in a lift moving up with an acceleration
b. in all the above cases
c. 107 dynes
d. at the poles
e. on the surface of moon
Q. The centre of gravity of a plane lamina will not be at its geometrical centre if it is a
a. Square
b. Equilateral triangle
c. Circle
d. Rectangle
e. Right angled triangle
Q. Coulomb friction is
a. Friction between solids and liquids
b. Friction between electrically charged bodies
c. Friction between lubricated surface
d. Friction between dry surfaces
e. Friction between bodies having relative motion
Q. A framed structure is perfect if it contains members equal to
a. n - 3
b. 2n - 3
c. 2n - 2
d. n - 2
e. 2n - 1
Q. Coulomb's law for the force between electric charges most closely resembles
a. Newton's laws of motion
b. Law of conservation of energy
c. Gauss's theorem
d. Newton's law of gravitation
e. None of the above