Q. The centre of gravity of a rectangle lies at a point where its two diagonals meet each other.

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Q. A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.

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Q. Two equal and opposite parallel forces whose lines of action are different, can be replaced by a single force parallel to the given forces.

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Q. All the steel trusses of the bridges, have one of their end roller supported, and other end hinged. The main advantage of such a support is that the truss remains stable.

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Q. The time of flight of a projectile on downward inclined plane depends upon

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Q. The below figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is

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Q. The moment of the force P about O as shown in the below figure is

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Q. Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is __________ than that about X-X axis.

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Q. The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)

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Q. Two bodies of masses m1,and m2 are hung from the ends of a rope, passing oyer a frictionless pulley as shown in the figure below. The acceleration of the string will be

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Q. A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is

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Q. The centre of gravity of a trapezium with parallel sides a and b lies at a distance of y from the base b, as shown in the below figure. The value of y is

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Q. In the shown figure, the tension (T) in the string will be

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Q. The below figure shows the three coplaner forces P, Q and R acting at a point O. If these forces are in equilibrium, then

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Q. Moment of inertia of a hollow rectangular section as shown in the below figure about Y-Y axis, is not the same as that about X-X axis.

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Q. If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tension in the string will be

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Q. In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will

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Q. Moment of inertia of a hollow circular section, as shown in the below figure about X-axis, is

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Q. In a framed structure, as shown in the below figure, the force in the member BC is

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Q. In a framed structure, as shown in the below figure, the force in the member AC is numerically equal to the force in member BC.

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