The number of brushes in a commutator depends on? Mark as favorite Copy Link speed of armature type of winding voltage amount of current to be collected Check Answer
Following DC generator will be in a position to build up without any residual magnetism in the poles? Mark as favorite Copy Link series generator shunt generator compound generator self-excited generator Check Answer
If a D.C. generator fails to build up the probable cause could not be? Mark as favorite Copy Link imperfect brush contact field resistance less than the critical resistance no residual magnetism in the generator faulty shunt connections tending to reduce the residual magnetism Check Answer
Number of tappings for each equilizer ring is equal to? Mark as favorite Copy Link number of pole pairs number of poles number of parallel paths number of commutator segments Check Answer
A D.C. welding generator has? Mark as favorite Copy Link lap winding wave moving duplex winding any of the above Check Answer
ln a DC machine, fractional pitch winding is used? Mark as favorite Copy Link to increase the generated voltage to reduce sparking to save the copper because of shorter end connections due to (b) and (c) above Check Answer
Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles? Mark as favorite Copy Link Series generator Shunt generator Compound generator None of the above Check Answer
ln case of D.C. generators, the armature voltage control is considered as suitable if the machine is driven? Mark as favorite Copy Link at constant load at constant current at constant torque at constant VA Check Answer
ln D.C. generators on no-load, the air gap flux distribution in space is? Mark as favorite Copy Link sinusoidal triangular pulsating flat topped Check Answer
Which of the following components of a D.C. generator plays vital role for providing direct current of a DC generator? Mark as favorite Copy Link Dummy coils Commutator Eye bolt Equilizer rings Check Answer