Menu
Home / EEE / D.C. Generators :: section-1

EEE :: D.C. Generators

D.C. Generators - section-1
  1. The purpose of providing dummy coils in a generator is

    2. A.

     To reduce eddy current losses
    B.

     To enhance flux density
    C.

     To amplify voltage
    D.

     To provide mechanical balance for the rotor

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. Brushes of D.C. machines are made of

    3. A.

     Carbon
    B.

     Soft copper
    C.

     Hard copper
    D.

     All of above

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. Lap winding is composed of

    4. A.

     Any even number of conductors
    B.

     Any odd number of conductors
    C.

     That even number which is exact multiple of poles + 2
    D.

     That even number which is exact multiple of poles

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. Wave winding is composed of

    5. A.

     Any even number of conductors
    B.

     Any odd number of conductors
    C.

     That even number which is exact multiple of poles + 2
    D.

     That even number which is exact multiple of poles

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. The commutator segments are connected to the armature conductors by means of

    6. A.

     Copper lugs
    B.

     Resistance wires
    C.

     Insulation pads
    D.

     Brazing

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator?

    7. A.

     Dummy coils
    B.

     Commutator
    C.

     Eye bolt
    D.

     Equalizer rings

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. Open circuited armature coil of a D.C. machine is

    8. A.

     Identified by the scarring of the commutator segment to which open circuited coil is connected
    B.

     Indicated by a spark completely around the commutator
    C.

     Both (A) and (B)
    D.

     None of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. In lap winding, the number of brushes is always

    9. A.

     Double the number of poles
    B.

     Same as the number of poles
    C.

     Half the number of poles
    D.

     Two

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. Which of the following generating machine will offer constant voltage on all loads?

    10. A.

     Self-excited generator
    B.

     Separately excited generator
    C.

     Level compounded generator
    D.

     All of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. The number of brushes in a commutator depends on

    11. A.

     Speed of armature
    B.

     Type of winding
    C.

     Voltage
    D.

     Amount of current to be collected

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers