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  • 1. In step-down transformer, the AC output gives the
    A. Current more than the input current B. Current less than the input current
    C. Current equal to the input current D. Voltage more than the input voltage
    Ans
    A
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  • 2.
    Statement I Pulling a lawn roller is easier than pushing it.

    Statement II Pushing increases the apparent weight and hence the force of friction.

    Which of the following options follows given statements?
    A.
    Both the statements are true and statement II is the correct explanation of statement I
    B.
    Both the statements are true, but statement II is not the correct explanation of statement I
    C. Statement I is true, but statement II is false
    D. Statement I is false, but statement II is true
    Ans
    A
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  • 3. It is difficult to cut things will a blunt knife because
    A.
    The pressure exerted by knife for a given force increases with increase in bluntness
    B.
    A sharp edge decreases the pressure exerted by knife for a given force
    C. A blunt knife decreases the pressure for a given force 
    D. A blunt knife decreases the area of intersection
    Ans
    C
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  • 4.
    When deep sea fishes are brought to the surface of the sea, their bodies burst. This is because the blood in their bodies flows at very
    A. High speed B. High pressure
    C. Low speed D. Low pressure
    Ans
    A
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  • 5.
    A bus travels at a speed of 50 km/h to go from its origin of its destination at a distance of 300 km and travels at a speed of 60 km/h to return to the origin. What is the average speed of the bus?
    A. 54.55 km/h B. 55 km/h
    C. 55.55 km/h D. 54 km/h
    Ans
    A
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