The C.G. of a thin hollow cone of height ‘h’, above its base lies on the axis, at a height of h/4 2h/3 h/3 3h/4 TRUE ANSWER : ? YOUR ANSWER : ?
A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is, 15 N 5 N 25 N 10 N TRUE ANSWER : ? YOUR ANSWER : ?
A retarding force on a body does not Change the motion of the body None of these Introduce the motion of the body Retard the motion of the body TRUE ANSWER : ? YOUR ANSWER : ?
The ends of a string weighing w/metre are attached to two points at the same horizontal level. If the central dip is very small, the horizontal tension of the string throughout is wl²/8d wl/4d wl²/16d wl²/4d TRUE ANSWER : ? YOUR ANSWER : ?
A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is 4 8 8TC 6 7i TRUE ANSWER : ? YOUR ANSWER : ?
The rate of change of displacement of a body with respect to its surrounding, is known None of these Velocity Speed Acceleration TRUE ANSWER : ? YOUR ANSWER : ?
When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as Virtual work None of these Imaginary work Negative work TRUE ANSWER : ? YOUR ANSWER : ?
A 50 kg boy climbs up a 8 m rope in gymnasium in 10 sec. The average power developed by the boy is approximately 4000 watts 500 watts 400 watts None of these TRUE ANSWER : ? YOUR ANSWER : ?
The bending moment in an arch is proportional to Intercept between the arch axis and the funicular polygon Vertical ordinate of the arch Vertical ordinate of funicular polygon None of these TRUE ANSWER : ? YOUR ANSWER : ?
The resolved part of the resultant of two forces inclined at an angle θ in a given direction is Sum of the forces multiplied by the tangent θ° Algebraic sum of the resolved parts of the forces in the direction Difference of the forces multiplied by cosine θ° Arithmetical sum of the resolved parts of the forces in the direction TRUE ANSWER : ? YOUR ANSWER : ?