| FORCE | MACHINE | TRUE or FALSE |
|---|---|---|
|
a. Faraday’s Law
What is the law stating that the current is induced in the conductor inside a magnetic field when there is a relative motion between conductor and the magnetic field.
a. Faraday’s Law b. Ohm’s Law c. Kirchoffs Current Law d. Collumbs Law |
a. Alternator
What do you called an electro mechanical device comprising of stator, rotor winding and an external exciter for supplying excitation voltage.
a. Alternator b. Generator c. DC generator d. Transformer |
a. True
An induction motor can therefore be made without electrical connections to the rotor through electromagnetic induction from the magnetic field.
a. True b. False |
|
a. Flemings Right Hand Rule
What rule is applied in the generation of an electromagnetically induced electromotive force within the armature conductors?
a. Flemings Right Hand Rule b. Fleming’s Left Hand Rule |
a. Rotor
What is typically called as a rotating magnet in an alternator.
a. Rotor b. Rotator c. Alternator d. Commutator |
a. True
The main parts of an alternator are stator and rotor.
a. True b. false |
|
b. Stator
Which of the following is the most important component of DC generator in which the magnetic field around the coil spins.
a. Rotor b. Stator c. Commutator d. Brushes |
b. D.C. Generator
Its main function is to change mechanical energy into electrical energy.
a. alternator b. D.C. Generator c. Rotator d. Commutator |
a. True
The working principle of an alternator is just like basic principle of DC generator
a. True b. False |
|
b. Brushes
What is the electrical connection between the commutator and which the external load circuit can be assured
a. Commutator b. Brushes c. Rotator d. Stator |
a. Rotor
Which of the following is the component of DC generator also known as “The Armature Core”
a. Rotor b. Stator c. Alternator d. Brushes |
b. False
DC Generators are also used in modern automobiles to charge the battery and to power electrical system when its engine is running.
a. True b. False |
|
c. Induction Motor
Which of the following is an electric motor in which the electric current in the rotor needed to produce torque.
a. Rotor b. Dynamo c. Induction Motor d. DC Generator |
b. Commutator
What components of DC generator operates like a rectifier to convert AC voltage to DC voltage.
a. Brushes b. Commutator c. Conductor d. Rotator |
a. True
Inherently, both AC and DC generators work on the Faraday’s Law of Electromagnetic Induction.
a. True b. False |
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