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Civil Engineering :: Applied Mechanics and Graphic Statics

  1. If ‘α’ is the angular acceleration of a compound pendulum whose angular displacement is ‘θ’, the frequency of the motion is

  2. A.

     2π √(α/θ)

    B.

     (1/2π) √(α/θ)

    C.

     4π √(α/θ)

    D.

     2π √(α - θ)

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  3. In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is

  4. A.

     1.5

    B.

     5

    C.

     25

    D.

     314

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  5. A sphere is resting on two planes BA and BC which are inclined at 45° and 60° respectively with the horizontal. The reaction on the plane BA will be

  6. A.

     Less than that on BC

    B.

     More than that of BC

    C.

     Equal to that on BC

    D.

     None of these

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  7. From the circular plate of a diameter 6 cm is cut out a circular plate whose diameter is equal to radius of the plate. The C.G. of the remainder shifts from the original position through

  8. A.

     0.25 cm

    B.

     0.50 cm

    C.

     0.75 cm

    D.

     1.00 cm

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  9. The angles between two forces to make their resultant a minimum and a maximum respectively are

  10. A.

     0° and 90°

    B.

     180° and 90°

    C.

     90° and 180°

    D.

     180° and 0°

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  11. Time period and length of a second’s pendulum respectively are

  12. A.

     1 sec and 99.4 cm

    B.

     1 sec and 92.7 cm

    C.

     2 sec and 99.4 cm

    D.

     2 sec and 92.7 cm

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  13. A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are

  14. A.

     1346.3 kN and 1500 kN

    B.

     1436.2 kN and 1250 kN

    C.

     1346.3 kN and 1250 kN

    D.

     1436.2 kN and 1500 kN

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  15. When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are

  16. A.

     Straight line and parabola

    B.

     Straight line and circle

    C.

     Circle and straight line

    D.

     Circle and parabola

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  17. Which of the following is a scalar quantity?

  18. A.

     Energy

    B.

     Momentum

    C.

     Torque

    D.

     Impulse

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  19. The motion of a particle is described by the relation x = t²- 10t + 30, where x is in meters and t in seconds. The total distance travelled by the particle from t = 0 to t = 10 seconds would be

  20. A.

     Zero

    B.

     30 m

    C.

     50 m

    D.

     60 m

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