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WorksheetsDC Generator
Total questions: 10
Worksheet time: 2mins
Two of the following are the general types of DC generators. (Check two)
Asynchronous
Self Excited
Separately Excited
Synchronous
Differential Compound
The presence of magnetic lines of force is not necessary in the operation of a generator.
TRUE
FALSE
How does a direct current is supplied by a DC generator?
by the principle of electromagnetic induction
by the process of commutation
by inserting diode rectifiers in series with the armature windings
by inserting capacitor in parallel with the generator terminals
How does electromagnetic induction works? (choose two)
by moving coils around a magnet
by moving the magnet around the coils
by moving both the magnet and the coils around each other
by placing the magnet and the coils beside each other
It is used to change the AC voltage induced in the armature windings to DC voltage at the generator output terminals.
armature
rotor
poles
commutator
Commutating poles are also called ____________.
magnetic poles
field poles
interpoles
earth poles
The standard direction of rotation for DC generators is ________ when looking at the commutator end.
clockwise
counter clockwise
in the direction of the magnetic field
in the direction of the magnetic flux
It is the component of the generator that has the voltage (EMF) induced into it.
commutator
armature
prime mover
rotor
It facilitates the collection of current from the armature conductor.
commutator
field poles
brushes
interpoles
They collect current from the commutator.
armature
interpoles
rotor
brushes
