Selecting the right cable size is important for both safety and efficiency. An undersized cable may overheat, cause voltage drops, or even lead to fire hazards. An oversized cable increases cost unnecessarily. Cable size is selected based on the following key factors: Current Carrying Capacity (Ampacity): The cable must handle the full-load current of the…
Category: NTS Past Papers
Difference between MCB, MCCB, ACB, and VCB
MCB, MCCB, ACB, and VCB are most common types of Circuit breakers. Circuit breakers are essential devices that we use to protect electrical systems from faults and overloads. They come in different types depending on the application, voltage level, and breaking capacity. MCB (Miniature Circuit Breaker) MCCB (Moulded Case Circuit Breaker): ACB (Air Circuit Breaker):…
Technical Interview Questions for Electrical Engineers
Breaking into the electrical engineering field requires not only strong academic knowledge but also practical awareness of how systems work in real projects. Whether you are preparing for a substation, OHTL, UGC, or utility-based role in Saudi Arabia and the Gulf, these 25 commonly asked technical interview questions will help you sharpen your fundamentals. Q1….
NTDC Junior Engineer Test
Following are some MCQs from the NTDC Junior Engineer Test Electrical (BPS-17). The test was held on 22 August 2021 by NTS. You can practice and learn most important MCQs for electrical tests preparation from Here. Download link of the pdf file is at the end of this post. The test was compiled by Compiled By…