500 Best Applied Mechanics MCQ
Q129). The angle of projection for a range is equal to the distance through which the particle would have fallen in order to acquire a velocity equal to the velocity of projection, will be
a).30°
b).45°
c).60°
d).75°.
Correct Answer:
75°.
Explanation:
Q130). A particle executes a simple harmonic motion. While passing through the mean position, the particle possesses
a).maximum kinetic energy and minimum potential energy
b).maximum kinetic energy and maximum potential energy
c).minimum kinetic energy and maximum potential energy
d).minimum kinetic, energy and minimum potential energy
Correct Answer:
maximum kinetic energy and minimum potential energy
Explanation:
Q131). Varigon’s theorem of moments states
a).arithmetical sum of the moments of two forces about any point, is equal to the moments of their resultant about that point
b).algebraic sum of the moments of two forces about any point, is equal to the moment of their resultant about that point
c).arithmetical sum of the moments of the forces about any point in their plane, is equal to the moment of their resultant about that point
d).algebraic sum of the moments of the forces about any point in their plane, is equal to the moment of their resulant about that point.
Correct Answer:
algebraic sum of the moments of the forces about any point in their plane, is equal to the moment of their resulant about that point.
Explanation:
Q132). A smooth cylinder lying on its convex surface remains
a).in stable equilibrium
b).in unstable equilibrium
c).in neutral equilibrium
d).out of equilibrium
Correct Answer:
in unstable equilibrium
Explanation:
Q133). A weight W is suspended at the free end of a light member hinged to a vertical wall. If the angle of inclination of the member with the upper wall is θ°, the force introduced in the member, is
a).W sec θ
b).W cos θ
c).W sin θ
d).W cosec θ
Correct Answer:
W sec θ
Explanation:
Q134). A satellite goes on moving along its orbit round the earth due to
a).gravitational force
b).centrifugal force
c).centripital force
d).none of these.
Correct Answer:
centrifugal force
Explanation:
Q135). The phenomenon of collision of two elastic bodies takes place because bodies
a).immediately after collision come momentarily to rest
b).tend to compress each other till they are compressed maximum possible
c).attempt to regain its original shape due to their elasticities
d).all the above.
Correct Answer:
all the above.
Explanation:
Q136). A glass ball is shot to hit a wall from a point on a smooth floor. If the ball returns back to the point of projection in twice the time taken in reaching the wall, the coefficient of restitution between the glass ball and the wall is
a).0.25
b).0.33
c).0.4
d).0.5
Correct Answer:
0.5
Explanation: