Interviews Questions

If one lamp connects between two phases it will glow or not? What happens if a capacitor is connected to a generator load? What is stepper motor. What are its uses? Battery banks are in connected in series or parallel and why? How to determine alternating current frequency? In a Tap changing transformer, tap is […]

1. What is an isolation transformer? 2. Why we don’t use wood as the core for transformers? 3. Why are alternators put in parallel? 4. What do you mean by Switchgear? 5. What do you mean by synchronising of alternator? 6. What is through fault in power system? 7. What is difference between symmetrical and […]

Electrical Engineering Interview Questions on DC Machine – 3 1. What is the main drawback of a d.c. shunt generator? Answer: The main drawback of a d.c. shunt generator is that, terminal voltage drops considerably with load. 2. At which condition, a shunt generator gives its greatest voltage? Answer: A shunt generator gives its greatest voltage […]

Electrical Engineering Interview Questions on DC Machine – 2 1. Which material is used to made the yoke of a d.c. machine? Answer: Generally, cast steel is used to made the yoke of a d.c. machine. 2. Which material is used to make the armature of a d.c. machine? Answer: Generally, laminated Silicon steel is […]

Electrical Engineering Interview Questions on DC Machine – 1 1. Which type of d.c. machine wave winding is used? Answer: Wave winding is used in high voltage and low current d.c. machines. 2. Which type of d.c. machine lap winding is used? Answer: Lap winding is used in low voltage and high current d.c. machines. […]

Electrical Engineering Interview Questions on Switchgear and Protections – 1 1. What is the name of relay used for anti motor protection scheme? Answer: Reverse Power Relay. 2. In which type of breaker resistance switching is employed? Answer: Air Blast Circuit Breaker. 3. What is the name of relay used for feeder protection in overhead […]