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Alternating Currents (AC) Mcq Viva questions answers-1

Friday, 7 November 2014

Alternating Currents (AC) Mcq Viva interview Short questions answers

 1. The a.c. system is preferred to d.c. system because - a.c. voltage is easily changed in magnitude

2.  In a a.c. system, we generate sine wave from because - it produces least disturbance in electrical circuits.

3. Friction-will produce A.C. voltage.

4. Electroplating - will work only D.C. voltages.

5. In a D.C circuit we consider the resistances (R) only. But in an A.C circuit in addition to resistance (R), inductance (L), and capacitance (C).


                                                   figure: AC supply Input - Output

Brushed DC motor

Friday, 24 October 2014

Five types of DC motor are :

1. Permanent magnet DC motor

2. Separately excited DC motor

3. DC shunt- wound motor

4. DC series-wound motor

5.DC compound motors ---
a. Cumulative compound.
b. Differentially compounded.

Wind Power Energy general knowledge

The Universe is unevenly heated by the sun , such that the poles receive less energy from the sun then the equator, along with this, dry land heats up or cools down even quickly than the seas do. The differential heating drives a world wide atmospheric convection system reaching from the universe surface to the startosphere which acts as a virtual ceiling. Most of the energy stored in these wind movements can be found at high aptitudes where continues wind speeds of over 160 km/h or 99 mph occur.
Basically, the wind energy is converted through friction into diffuse heat throughout the Earth's surface and the atmosphere. The total amount of economically extractable power available from the wind is considerably more than present human power use from all sources.

EEE CSE Viva MCQ Question Answers

Monday, 1 September 2014

EEE CSE Viva MCQ Question Answers

1. Decibel is the unit of : Sound.

2. Angstrom measures : Length of Light Waves.

3. The largest plannet in the Solar system is :Jupitar.

4. The inventor of the Telephone :. Alexander Graham Bell.

5. Bluetooth is the popular name for the : Wireless networking Standard.

6. The most used Search engine  of the world is: Google.

7. E=mc`2 defines the Theory of relativity.

8. DOS : Stands for Disk Operating System.

9. Start Button was first introduced in the operating system : Windows 98.

10. The type of computers are also called midrange computers is- Mini computers.

Important Electrical Electrical Units

Wednesday, 20 August 2014

1.SI unit of megnetic flux is Weber

2. Unit of magneto motive force is Ampere-Turn

3.CGC unit of magneto motive force Gilbert

4.The unit of flux is in CGS system is Maxwell

5.Flux density is measured in Tesla

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