Table of Contents

Air Conditioner/Refrigerator

1. Why AC rated in Tons, Not in kW or KVA? A Guide about Air-conditioning system and Refrigeration.

Alternator

1. 21 Common Interview Questions & Answers on AC Generators - Part-2
2. How DC Generator be converted into Alternator?
3. How can a common three-phase, squirrel cage motor be made to generate?
4. How do synchronous motors differ from alternators?
5. Mention The major features of a good protective gear for alternator and transformer
6. On an alternator, does the dc part (the poles) or the ac part (the conductors) rotate?
7. Some Useful Electrical Equations.
8. Why Power Plant Capacity Rated in MW and not in MVA?
9. Why is it preferable to generate alternating current rather than direct current?
10. Write down some major Faults of Alternator and Transformer.
11. Write down the Protective System of Alternator and Transformer

Basic Electricity

1. Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
2. How can a circuit element absorb power?
3. Define the voltage regulation of the transformer. Why it is important? - New !!
4. Explain the application of storage batteries.
5. How much voltage drop is Acceptable?
6. How to calculate voltage drop?
7. Some Mnemonic phrases for remembering Color Codes of Resistor in Electronics. - New !!
8. Some Useful Electrical Equations.
9. State the main effects of electric current? What are the applications of it?
10. The Discovery of Electricity Timeline. - New !!
11. What are the advantages of Three Phase Systems?
12. What is a Resistor? What are the Types of Resistors? What are the Applications of Resistor? - New !!
13. What is the Difference Between Neutral, Ground and Earth?
14. What is the Role of Capacitor in AC and DC Circuit?
15. What is the difference between Grounding and Earthing?
16. What is the difference between a battery and a capacitor?
17. Why AC rated in Tons, Not in kW or KVA? A Guide about Air-conditioning system and Refrigeration.
18. Why AC systems are preferred over DC systems?
19. Why are alternating voltages and currents expressed in r.m.s values and not average values?
20. Why we can’t store AC in Batteries instead of DC?

Basic Eletronics

1. Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
2. Compare JFET’s and MOSFET’s.
3. Some Mnemonic phrases for remembering Color Codes of Resistor in Electronics. - New !!
4. What are data communication systems?
5. What is a Resistor? What are the Types of Resistors? What are the Applications of Resistor? - New !!
6. What is the Role of Capacitor in AC and DC Circuit?
7. What is the difference between a battery and a capacitor?

Batteries

1. Explain the application of storage batteries.
2. Explain the source of energy for charging the battery of an automobile.
3. What is the difference between a battery and a capacitor?

DC Circuits

1. Compare JFET’s and MOSFET’s.
2. Explain the application of storage batteries.
3. What is the Role of Capacitor in AC and DC Circuit?
4. What is the difference between a battery and a capacitor?
5. Why we can’t store AC in Batteries instead of DC?
6. Write a short note on AC-to-DC Converter.

Digital Electronics

1. Compare JFET’s and MOSFET’s.
2. Draw the block diagram of a mobile communication system.
3. What are the Accelerometers? Describe some applications of Accelerometers.
4. What are the Advantages of Integrated Circuits (ICs)? - New !!
5. What are the Linear Variable Differential Transformers (LVDT)? Describe some applications of LVDT.
6. What are the limitations of integrated circuits? - New !!
7. What are the temperature sensors? Describe some applications of temperature sensors.
8. What is Schmitt trigger? How it works? Where is it used?
9. What is a differential amplifier? Why use differential amplifiers?
10. What is optical fiber cable? What are the advantages of optical fiber cable?
11. What is pressure sensor? Describe some applications of pressure sensors.
12. What is the Role of Capacitor in AC and DC Circuit?
13. Write a short note on AC-to-DC Converter.

Digital Logic Design

1. What are the Advantages of Integrated Circuits (ICs)? - New !!
2. What are the limitations of integrated circuits? - New !!
3. What is Schmitt trigger? How it works? Where is it used?

EEE News!

1. EEE Interview Tips Awarded Top 60 Electronics Websites & Blogs For Electrical & Electronic Engineers. - New !!

EEE Viva Questions

1. 10 Interview Questions and Answers on Motors - Part-2
2. 12 Most Common Interview Questions and Answers on Transformer - Part 2
3. 13 Most Important Questions and Answers on AC Motor - Part-1
4. 16 Common Interview Questions & Answers on Generators - Part-1
5. 18 Most Important Questions and Answers on DC Motors - Part-1.
6. 21 Common Interview Questions & Answers on AC Generators - Part-2
7. 37 Interview Questions and Answers on DC Generators - Part-3
8. How DC Generator be converted into Alternator?
9. How a Motor Works?
10. How to avoid low power factor?
11. If a dc motor is connected across an ac source, what will be the result? Why?
12. Interview Questions For Electrical Engineering
13. State the main effects of electric current? What are the applications of it?
14. Suppose a man touches a metal toaster and is shocked. The toaster, having a polarized plug, is inspected, and nothing is found amiss. The inspector then looks at the outlet. He measures 120 V between the long slot and ground, and 0 V between the short slot and ground. What is the problem?
15. The Discovery of Electricity Timeline. - New !!
16. What are the advantages and disadvantages of dc motors compared with ac motors?
17. What are the causes of low power factor?
18. What are the disadvantages of Low Power Factor?
19. What is a Resistor? What are the Types of Resistors? What are the Applications of Resistor? - New !!
20. What is the difference between a dc motor and a dc generator?
21. What is the most defining drawback of DC motors in general?
22. What kind of hazards to nuclear power plants occur that originate outside the plants?
23. What will happen if a Shunt Motor is directly connected to the supply line?
24. Why star delta starter is preferred with induction motor?
25. Write some Factors that Influence Motor Efficiency.

Electric Diagram

1. Describe a Starter-Motor Circuit. - New !!
2. Draw the Basic structure of an electric power system.
3. Draw the Schematic Arrangement of Steam Power Station.
4. Electric Diagram - Process flow Diagram of 210 MW Power Plant!
5. Electric Diagram - Turbine Generator Systems!
6. Names of Parts on Electric Pole.
7. Wiring Symbols - New !!
8. Write a short note on AC-to-DC Converter.

Electrical Abbreviations

1. Abbreviations of Some Basic Electrical Terms
2. List of Acronyms on Digital Electronics

Electrical Equations

1. Basic Motor Formulas and Calculations
2. Some Useful Electrical Equations.

Electronic Acronyms

1. List of Acronyms on Digital Electronics

Electronics

1. Compare JFET’s and MOSFET’s.

Electronics Project

1. EEE Project -1 : 15- Step Digital Power Supply
2. Write a short note on AC-to-DC Converter.

Generator

1. 16 Common Interview Questions & Answers on Generators - Part-1
2. 21 Common Interview Questions & Answers on AC Generators - Part-2
3. 37 Interview Questions and Answers on DC Generators - Part-3
4. Explain the source of energy for charging the battery of an automobile.
5. How Commutator changes AC into DC?
6. How DC Generator be converted into Alternator?
7. How can a common three-phase, squirrel cage motor be made to generate?
8. How do synchronous motors differ from alternators?
9. How you can improve the commutation?
10. Mention The major features of a good protective gear for alternator and transformer
11. On an alternator, does the dc part (the poles) or the ac part (the conductors) rotate?
12. State the difference between generator and alternator.
13. What are the Advantages of Parallel Operation of DC Generators?
14. What are the Differences Between Generators and Inverters?
15. What are the conditions for parallel operation of alternators?
16. What are the effects of commutation?
17. What are the procedures for parallel operation of DC Generators?
18. What is the difference between Electric Motor and Electric Generator? - New !!
19. What is the difference between a dc motor and a dc generator?
20. What is the reason of sparking on the commutator?
21. Why a generator fails to build up the voltage?
22. Why a generator is overheated?
23. Why is it preferable to generate alternating current rather than direct current?
24. Write down some major Faults of Alternator and Transformer.
25. Write down the Protective System of Alternator and Transformer

Inverter

1. What are the Differences Between Generators and Inverters?

Magnatism & Electromagnatism

1. What is the dynamically induced emf?

Motor

1. 10 Interview Questions and Answers on Motors - Part-2
2. 13 Most Important Questions and Answers on AC Motor - Part-1
3. 18 Most Important Questions and Answers on DC Motors - Part-1.
4. At the same power, which has a higher efficiency, the synchronous motor or the induction motor?
5. Basic Motor Formulas and Calculations
6. Describe a Starter-Motor Circuit. - New !!
7. Do you know which motor is used in the fan present in your computers for ventilation? Do you know which motor is used in the hard drive in your computer?
8. Explain what happens when a d.c. motor is connected across an a.c. supply ?
9. How a Motor Works?
10. How can a common three-phase, squirrel cage motor be made to generate?
11. How do synchronous motors differ from alternators?
12. How is the most suitable motor selected?
13. How to select a Motor?
14. If a dc motor is connected across an ac source, what will be the result? Why?
15. Mention some applications of AC series motors (or universal motor).
16. Sometimes we have seen that a ceiling fan suddenly starts moving in opposite direction with slow speed, what could be the defect?
17. State Possible Troubles in a DC Motor with Reasons.
18. What Types of Motors Used in Fans, Treadmill exercisers, Vacuum cleaners, Blenders, Clocks, Phonographic appliances, Vending machines, Refrigerators, Rolling mills, Lathes, Power factor improvement, and CD/DVD players?
19. What are the Advantages and Disadvantages of AC Induction Motors?
20. What are the Advantages and Disadvantages of Stepper motors?
21. What are the Benefits of improved PF of a motor?
22. What are the Characteristics, Power Ranges and Applications of different types of AC & DC Motors?
23. What are the advantages and disadvantages of dc motors compared with ac motors?
24. What is 2 phase motor?
25. What is Permanent Magnet DC (PMDC) Motor? What are the Advantages, Disadvantages and Applications of Permanent Magnet DC Motor?
26. What is Starter and what are the main functions of starter?
27. What is a Split Phase motor? What are the Applications of Split Phase Induction Motor?
28. What is a phase splitter?
29. What is meant by AC commutator motors? What are the different types of AC commutator motors?
30. What is stepper motor? What types of stepper motor are there? Where stepper motors are used?
31. What is the difference between Electric Motor and Electric Generator? - New !!
32. What is the difference between Single Phase and Three Phase Induction Motor?
33. What is the difference between a dc motor and a dc generator?
34. What is the difference between a four point starter and three point starter?
35. What is the most defining drawback of DC motors in general?
36. What modifications have to be done on DC series motor to make it to work with single phase AC supply?
37. What will happen if a Shunt Motor is directly connected to the supply line?
38. Where motors are used?
39. Why Motor rated in kW instead of kVA?
40. Why star delta starter is preferred with induction motor?
41. Write some Factors that Influence Motor Efficiency.

Nuclear Power Plants

1. How nuclear power plants generate electricity?
2. What kind of hazards to nuclear power plants occur that originate outside the plants?
3. What types of protection are available for nuclear power plants against the effects of external hazards?

Optical Fiber Cable

1. What is optical fiber cable? What are the advantages of optical fiber cable?

Polarization

1. Suppose a man touches a metal toaster and is shocked. The toaster, having a polarized plug, is inspected, and nothing is found amiss. The inspector then looks at the outlet. He measures 120 V between the long slot and ground, and 0 V between the short slot and ground. What is the problem?

Power Station

1. 12 Most Common Interview Questions and Answers on Transformer - Part 2
2. 16 Common Interview Questions & Answers on Generators - Part-1
3. 21 Common Interview Questions & Answers on AC Generators - Part-2
4. 37 Interview Questions and Answers on DC Generators - Part-3
5. Can transformers be used in parallel?
6. Discuss about different types of Transformers and their Applications.
7. Draw the Schematic Arrangement of Steam Power Station.
8. Give a list of the factors involved for selecting a factory drive.
9. How nuclear power plants generate electricity?
10. What are the Benefits of improved PF of a motor?
11. What are the conditions for parallel operation of alternators?
12. What is Power Plant? What are the different types of Power Plants?
13. What is the difference between Grounding and Earthing?
14. What is the difference between a dc motor and a dc generator?
15. What kind of hazards to nuclear power plants occur that originate outside the plants?
16. What types of protection are available for nuclear power plants against the effects of external hazards?
17. Why Power Plant Capacity Rated in MW and not in MVA?
18. Write down some major Faults of Alternator and Transformer.

Power System

1. Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
2. 13 Most Important Questions and Answers on AC Motor - Part-1
3. 16 Common Interview Questions & Answers on Generators - Part-1
4. 21 Common Interview Questions & Answers on AC Generators - Part-2
5. Basic Motor Formulas and Calculations
6. Describe a Starter-Motor Circuit. - New !!
7. Describe the types of Insulators used in Transmission and Distribution .
8. Explain what happens when a d.c. motor is connected across an a.c. supply ?
9. Give a list of the factors involved for selecting a factory drive.
10. How much voltage drop is Acceptable?
11. How to avoid low power factor?
12. How to calculate voltage drop?
13. What are the Benefits of improved PF of a motor?
14. What are the Components of the power system?
15. What are the Effects of Over-voltages on Power Systems?
16. What are the advantages of Three Phase Systems?
17. What are the causes of low power factor?
18. What are the conditions for parallel operation of alternators?
19. What are the disadvantages of Low Power Factor?
20. What are the various kind of cables used for transmission?
21. What is overvoltage? Discuss the causes of overvoltage.
22. What is the Difference Between Neutral, Ground and Earth?
23. What is the difference between Grounding and Earthing?
24. What is the difference between a four point starter and three point starter?
25. What will happen when power factor is leading in the distribution of power?
26. Why AC rated in Tons, Not in kW or KVA? A Guide about Air-conditioning system and Refrigeration.
27. Why AC systems are preferred over DC systems?
28. Why Motor rated in kW instead of kVA?
29. Why Power Plant Capacity Rated in MW and not in MVA?
30. Why are alternating voltages and currents expressed in r.m.s values and not average values?
31. Why star delta starter is preferred with induction motor?
32. Why we can’t store AC in Batteries instead of DC?
33. Write down some major Faults of Alternator and Transformer.
34. Write down the Protective System of Alternator and Transformer

Requested Ebooks

1. Discuss about different types of Transformers and their Applications.
2. What is Telemetry? How do Wireless Telemetry Systems Work? What are the Applications & Advantages of Telemetry?
3. Why AC rated in Tons, Not in kW or KVA? A Guide about Air-conditioning system and Refrigeration.

Requested Questions

1. What will happen if a Shunt Motor is directly connected to the supply line?

Stepper Motor

1. What Types of Motors Used in Fans, Treadmill exercisers, Vacuum cleaners, Blenders, Clocks, Phonographic appliances, Vending machines, Refrigerators, Rolling mills, Lathes, Power factor improvement, and CD/DVD players?
2. What are the Advantages and Disadvantages of Stepper motors?
3. What is stepper motor? What types of stepper motor are there? Where stepper motors are used?

Sub Station

1. Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
2. 12 Most Common Interview Questions and Answers on Transformer - Part 2
3. Can transformers be used in parallel?
4. Discuss about different types of Transformers and their Applications.
5. If transformers with different electrical characteristics are connected in parallel, what will happen?
6. What are the Benefits of improved PF of a motor?
7. What are the Functions of Substation Equipment?
8. What are the purposes of a Transformer?
9. What is RMU (Ring Main Unit) and Its Use in Electrical Power Distribution System?
10. What is the difference between Grounding and Earthing?
11. Why should Dry-Type Transformers never be overloaded?

Switchgear and Protection

1. Mention The major features of a good protective gear for alternator and transformer
2. What are the functions of Protective Relays?
3. What are the Benefits of improved PF of a motor?
4. What are the Functions of Substation Equipment?
5. What are the errors in Current Transformer?
6. What are the various kind of cables used for transmission?
7. What do you mean by current chopping?
8. What is REF relay?
9. What is RMU (Ring Main Unit) and Its Use in Electrical Power Distribution System?
10. What is an arc? Give the two methods of arc interruption?
11. What is the difference between Grounding and Earthing?
12. What is the difference between a four point starter and three point starter?
13. Why star delta starter is preferred with induction motor?
14. Write down some major Faults of Alternator and Transformer.
15. Write down the Protective System of Alternator and Transformer

Synchronous Motor

1. At the same power, which has a higher efficiency, the synchronous motor or the induction motor?
2. Basic Motor Formulas and Calculations
3. How do synchronous motors differ from alternators?
4. What Types of Motors Used in Fans, Treadmill exercisers, Vacuum cleaners, Blenders, Clocks, Phonographic appliances, Vending machines, Refrigerators, Rolling mills, Lathes, Power factor improvement, and CD/DVD players?
5. What is the difference between a four point starter and three point starter?

Telecommunication Engineering

1. Draw the block diagram of a mobile communication system.
2. What are data communication systems?
3. What is Telemetry? How do Wireless Telemetry Systems Work? What are the Applications & Advantages of Telemetry?
4. What is optical fiber cable? What are the advantages of optical fiber cable?

Transformer

1. 12 Most Common Interview Questions and Answers on Transformer - Part 2
2. Can Single Phase Transformers be used for Three Phase applications?
3. Can transformers be used in parallel?
4. Define the voltage regulation of the transformer. Why it is important? - New !!
5. Discuss about different types of Transformers and their Applications.
6. Explain the construction and working principle of a transformer.
7. If transformers with different electrical characteristics are connected in parallel, what will happen?
8. If transformers with different electrical characteristics are connected in parallel, what will happen?
9. Mention The major features of a good protective gear for alternator and transformer
10. What are the purposes of a Transformer?
11. What are the various losses occurring in a transformer?
12. What is RMU (Ring Main Unit) and Its Use in Electrical Power Distribution System?
13. What is an Autotransformer? Explain Autotransformer Operation. What are the Limitations, Advantages, Disadvantages and Applications of Autotransformer?
14. What is an Ideal Transformer? State some major differences between an ideal and real transformer.
15. What is an induction regulator?
16. What is the difference between Grounding and Earthing?
17. What is the relationship between the current and voltage in the high side of a transformer and the current and voltage in the low side of a transformer? Draw a diagram showing this relationship.
18. Why should Dry-Type Transformers never be overloaded?
19. Write down some major Faults of Alternator and Transformer.
20. Write down the Protective System of Alternator and Transformer

Transmission and Distribution

1. Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
2. Describe the types of Insulators used in Transmission and Distribution .
3. Discuss about different types of Transformers and their Applications.
4. Draw the Basic structure of an electric power system.
5. Names of Parts on Electric Pole.
6. What are the Effects of Over-voltages on Power Systems?
7. What are the various kind of cables used for transmission?
8. What is RMU (Ring Main Unit) and Its Use in Electrical Power Distribution System?
9. What is overvoltage? Discuss the causes of overvoltage.
10. What is the Difference Between Neutral, Ground and Earth?
11. What is the difference between Grounding and Earthing?
12. What is the full form of PILC, PILCSTA and PILCDTA Cables?
13. What will happen when power factor is leading in the distribution of power?
14. Why AC systems are preferred over DC systems?
15. Why Power Plant Capacity Rated in MW and not in MVA?

Useful Equations

1. Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
2. 30 Electrical Engineering Formulas!
3. Basic Motor Formulas and Calculations
4. Useful Electrical Equations!

Viva Questions - General Side

1. Interview Questions For Electrical Engineering
2. Some common Interview questions (general side).

Voltage Stabilizer

1. What is Voltage Stabilizer & How it Works? All About Voltage Stabilizer.

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