Q. If the resultant of two forces P and Q acting at an angle θ makes an angle α with P, then tan α equals

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Q. The moment of intertia of a circular lamina of diameter d, about an axis perpendicular to the plane of the lamina and passing through its centre, is

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Q. If l is the span of a light suspension bridge whose each cable carries total weight (w) and the central dip is y, the horizontal pull at each support, is

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Q. The C.G. of a hemisphere from its base measured along the vertical radius is at a distance of

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Q. Power developed by a torque, is

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Q. In the structure shown in below figure, the member which carries zero force, is

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Q. The reaction at the support D of the continuous beam ABCD, hinged at two points shown in below figure is

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Q. The moment of inertia of a triangular section (base b, height h) about centroidal axis parallel to the base, is

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Q. The horizontal reaction at the support A of the structure shown in below figure, is

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Q. The load shared by the member BC of the structure shown in below figure is

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Q. A vehicle weighing w kg is to run on a circular curve of radius r. If the height of its centre of gravity above the road level is h and the distance between the centres of wheels is 2a, the maximum velocity, in order to avoid over turning, will be

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Q. The c.g. of a thin hollow cone of height h, above its base lies on the axis, at a height of

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Q. Two forces act an angle of 120°. If the greater force is 50 kg and their resultant is perpendicular to the smaller force, the smaller force is

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Q. The C.G. of a right circular cone lies on its axis of symmetry at a height of

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Q. A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is

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Q. If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is

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Q. A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal line 400 m apart. If central dip is 20 m, the minimum tension in the cable, will be

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Q. A particle moves along a straight line such that distance x traversed in t seconds is given by x = t²(t + 1), the acceleration of the particle, will be

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Q. The Law of Polygon of Forces states that

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Q. Parallelogram Law of Forces states, "if two forces acting simultaneously on a particle be represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant may be represented in magnitude and direction by

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