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Physics - section - 10
  1. A wheel-barrow is an example of

    2. A.

     Class III lever
    B.

     Pulley system
    C.

     Class I lever
    D.

     Class II lever

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  2. A single fixed pulley is used to draw water from a well because

    3. A.

     Efficiency is 100%
    B.

     Velocity ratio is low
    C.

     Mechanical advantage is high
    D.

     Force is applied in a convenient direction

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  3. A fixture is defined as a device which

    4. A.

     Is used to check the accuracy of workpiece
    B.

     Holds and locates a workpiece and guides and controls one or more cutting tools
    C.

     Holds and locates a workpiece during an inspection or for a manufacturing operation
    D.

     All of the above

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  4. What type of simple machine is an axe?

    5. A.

     Lever
    B.

     Wedge
    C.

     Both A & B
    D.

     The screw

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  5. While ascending a hill, the driver of the vehicle keeps the gear ratio

    6. A.

     Equal to 1
    B.

     Less than 1
    C.

     Greater than 1
    D.

     Either equal to or greater than 1

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  6. The size of gear is usually specified by

    7. A.

     Pitch circle diameter
    B.

     Diametral pitch
    C.

     Pressure angle
    D.

     Circular pitch

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  7. Which of the following is a compound machine?

    8. A.

     Screw
    B.

     Knife
    C.

     Bicycle
    D.

     Ramp

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  8. Which of the following is an example for cantilever beam?

    9. A.

     Diving board
    B.

     Bridge
    C.

     See-saw
    D.

     Common balance

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  9. A machine powered by rotating blades is a

    10. A.

     Fumerole
    B.

     Turbines
    C.

     Solar panel
    D.

     None of the above

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  10. Second and third class levers are differentiated by

    11. A.

     The location of the load
    B.

     The location of the fulcrum
    C.

     The presence of multiple loads
    D.

     The type of fulcrum present

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