Quiz Competition

1. 1. Lenz law is a consequence of the law of conservation of?

• A) induced current

• B) charge

• C) energy

• D) induced emf

2. 2. The starting winding of single phase motor is placed in?

• A) armature

• B) field

• C) rotor

• D) stator

3. 3. Which is the most superior dielectric out of the following?

• A) air

• B) glass

• C) bakelite

• D) paper

4. 4. Which of the following elements of electrical engineering cannot be analyzed using Ohm’s law?

• A) capacitor

• B) inductor

• C) transistor

• D) resistance

5. 5. Find the average value of current when the current that are equidistant are 4A, 5A and 6A.

• A) 5A

• B) 6A

• C) 15A

• D) 10A

6. 6. A fuse is connected.

• A) in series with circuit

• B) in parallel with circuit

• C) either in series or in parallel with circuit

• D) none of the above

7. 7.a short circuit is identified by ?

• A) no current flow

• B) heavy current flow

• C) voltage drop

• D) voltage rise

8. 8.In a DC generator, the iron losses mainly take place in?

• A) yoke

• B) commutator

• C) Armature conductor

• D) armature rotor

9. 9.The law that the induced e.m.f. and current always oppose the cause producing them is due to?

• A) faraday

• B) lenz

• C) newton

• D) coulamb

10.What does positive power in an electrical element indicate?

• A) element is absorbing power

• B) element is supplying power

• C) element may absorb or supply power

• D) element is neither absorbing nor supplying power