Electrical Online Practice Set 3

    An 8-pole duplex lap winding will have _______ parallel paths.

    Correct! Wrong!

    If spacing between conductor increase the corona effect -

    Correct! Wrong!

    The annual deposit in the sinking fund method compared to the straight line method is

    Correct! Wrong!

    A DC motor runs at full load at 1725 rpm and without load at 1775 rpm. The regulation of speed is

    Correct! Wrong!

    A DC generator beyond critical field resistance will generated-

    Correct! Wrong!

    Inverse time current relay are use for protection of -

    Correct! Wrong!

    The DC motor speed can be controlled by changing

    Correct! Wrong!

    In an NPN transistor P-region is called

    Correct! Wrong!

    The DC generator has poorest V.R is

    V.R=Voltage Regulation
    Show hint
    Correct! Wrong!

    Main A.C. power is converted into D.C. power for _______ .

    Correct! Wrong!

    The running speed of a DC series motor is basically determined by -

    Correct! Wrong!

    Current versus time graph for an ideal commutation is a

    Correct! Wrong!

    If the back emf in the DC motor suddenly disappears, the motor will

    Correct! Wrong!

    The transformer that does not provide electric isolation is

    Correct! Wrong!

    Which of these won't prevent a self- excited shunt generator from building its full voltage?

    Correct! Wrong!

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