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Statistics Test - 17
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Statistics Test - 17
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  • Question 1/10
    4 / -1
    A body is on the point of sliding down an inclined plane under its own weight. If the inclination of the plane tothe horizon be 30°, the angle of friction will be
    Solutions

  • Question 2/10
    4 / -1
    A circular cylinder of radius r and height h rests on a rough horizontal plane with one of its flat ends on the plane. A gradually increasing horizontal force is applied through the centre of the upper end. If thecoefficient of friction is μ, the cylinder will topple before sliding, if
    Solutions

  • Question 3/10
    4 / -1
    A uniform beam AB of weight W is standing with the end B on a horizontal floor and end A leaning against a vertical wall. The beam stands in a vertical plane perpendicular to the wall inclined at 45° to the vertical, and is in the position of limiting equilibrium. If the two points of contact are equally rough, then the coefficient of friction at each of them is
    Solutions

  • Question 4/10
    4 / -1
    A body is pulled up an inclined rough plane. Let λ be the angle of friction. The required force is least when it makes an angle kλ with the inclined plane, where k =
    Solutions

  • Question 5/10
    4 / -1
    A force of 35 kg is required to pull a block of wood weighing 140 kg on a rough horizontal surface. The coefficient of friction is
    Solutions

  • Question 6/10
    4 / -1
    A uniform ladder rests in limiting equilibrium, its lower end on a rough horizontal plane and its upper end against a smooth vertical wall. If θ is the angle of inclination of the ladder to the vertical wall and μ is the coefficient of friction, then tan θ is equal to
    Solutions

  • Question 7/10
    4 / -1
    A body of 6 kg rests in limiting equilibrium on an inclined plane whose slope is 30°. If the plane is raised to slope of 60°, the force in kg wt along the planerequired to support it is
    Solutions

  • Question 8/10
    4 / -1
    The C.G. of three particles placed at the vertices of a triangle is at its
  • Question 9/10
    4 / -1
    A square hole is punched out of a circular lamina of diameter 4 cm, the diagonal of the square being a radius of the circle. Centroid of the remainder from the centre of the circle is at a distance
    Solutions

  • Question 10/10
    4 / -1
    A body consists of a solid cylinder with radius a and height a together with a solid hemisphere of radius a placed on the base of the cylinder. The centre of gravity of the complete body is
    Solutions

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