The moment of inertia of a body does not depend upon
A.The angular velocity of the body
B.Mass of the body
C.The distribution of mass in the body
D.The axis of rotation of the body
E.None of the above
Category: Applied Mechanics Mcqs
A couple applied to a flywheel of mass 5 kg and of radius of gyration 20 cm produces an angular acceleration of 4 radians/sec2. The torque applied in dyne cm is
A.8 x 104
B.8 x 106
C.8 x 107
D.8 x 108
E.8 x 1010
In actual machines
A.Mechanical advantage is equal to velocity ratio
B.Mechanical advantage is greater than velocity ratio
C.Mechanical advantage is less than velocity ratio
D.Mechanical advantage is unity
E.Mechanical advantage is less than unity
A beam fixed at both ends with a central load W in the middle will have zero bending moment at
A.one place
B.two places
C.three places
D.no where
A grinding wheel is rotating at 3000 rpm. When the switch is turned off the wheel stops in 10 seconds. The uniform deceleration of the wheel was
A.1 rad/s2
B.4 rad/s2
C.10.4 rad/s2
D.31.4 rad/s2
E.62.8 rad/s2
The coefficient of friction is
A.The angle between the normal reaction and the resultant of normal reaction and the limiting friction
B.The tangent of the angle between the normal reaction and the resultant of the normal reaction and the limiting friction
C.The tangent of the angle of the net resultant force with the direction of motion
D.The tangent of the angle between the normal reaction and direction of limiting friction
E.The tangent of the angle between the horizontal plane and the resultant force
A block of weight 20 kg slides with an initial velocity of 2 m sec down an inclined plane on to a spring of stiffness 10 kg/cm. If the co–efficient of friction is 0.2, angle ? = 30 the ratio of maximum compession of spring, neglecting friction to that while considering friction would be
A.More than one
B.One
C.Less than one
D.Depends on the stiffness of spring
E.None of the above
