Hot questions

State the procedure for laying / installation of underground cable.
Answer : 1) Direct laying Cable: or Trench laying method: ![][1] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=2239248645105787017 Procedure:  For laying of a cable trench about 1.5m deep ... one cable does not damage the adjacent cable.  Only armored cables are used in this method. ...

Draw and explain the use of : (i) Combination plier (ii) Tester (iii) Wire Striper (iv) Hammer
Answer : Cutter cum Insulation Remover : ![][1] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=7558183951160707100...

Explain the suitability of copper as an electrical conductor with reference to its mechanical and electrical properties.
Answer : ### Introduction Copper is the industry standard for electrical wiring and conductors, and its widespread use is due to an exceptional combination of both electrical and mechanical properties. While ... for decades, making it the superior choice for the vast majority of electrical applications....

Give the justification with diagram — "Earthing saves human life during Electrical faults". State adverse effect of improper earthing system.
Answer : ![][1] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=14708590942510254801 Justification of "Earthing saves human life during Electrical faults":  As per the above figure ... earthing may cause burns from arcing  Tools plugged into improper earthing circuit may become energized. ...

Do conventional current and electron current flow in the same direction in an electric circuit?
Answer : ![][1] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=13686190518983378217 The short answer is: **No, they flow in opposite directions.** Here is a detailed breakdown of why: ... what's happening inside the wire, you need to think about **electron current (negative to positive)**....

What is drift current?
Answer : ### The Simple Analogy: A River Imagine a wide, slow-moving river. The water molecules in the river are like the **charge carriers** (e.g., electrons) in a wire. * **Without a ... What's the opposite?** Diffusion current, which is caused by differences in concentration, not by an electric field....

State different types of holders used in wiring installation.
Answer : 1. Pendent Holder 2. Batten Holder 3. Angle holder 4. Screwed holder...

Explain HRGO and CRGO. State benefits of CRGO for manufacturing of core.
Answer : ### **Explanation of HRGO and CRGO** Both HRGO and CRGO are types of "electrical steel" or "silicon steel." Their primary purpose is to be used in the cores of electromagnetic ... smaller, lighter, quieter, and more energy-efficient devices with a longer and more reliable operational lifespan....

State failure phenomena observed in insulating material. State four reasons for failure of gaseous and solid dielectric materials.
Answer : ### Failure Phenomena in Insulating Materials Insulating materials (dielectrics) are designed to prevent the flow of electric current. Failure occurs when the material loses its insulating properties ... insulation, concentrating the electric field and providing an easy path for breakdown to occur....

Explain MCB and ELCB with connection diagram supplying single phase load.
Answer : ![][1] ![][2] [1]: https://electrical-engineering.app/?qa=blob&qa_blobid=5168727773055588634 [2]: https://electrical-engineering.app/?qa=blob&qa_blobid=9140420272955587599 --- ### Introduction ... ) | | **Detects** | High currents (Amperes) | Very small leakage currents (milliamperes) | ...