J. Kumar Infraprojects Project Manager Interview Questions and Answers

PVC conduits are durable, lightweight tubes used for electrical wiring and protection against environmental factors.

• Types include Schedule 40 and Schedule 80, differing in thickness and pressure ratings.

• Rigid PVC conduit is commonly used for underground installations.

• Flexible PVC conduit allows for easier installation in tight spaces.

• Examples include electrical raceways in residential and commercial buildings.

Testing of transformers involves various tests to ensure performance, safety, and reliability in electrical systems.

• 1. Insulation Resistance Test: Measures the resistance of insulation to prevent electrical leakage.

• 2. Transformer Turns Ratio (TTR) Test: Compares the ratio of primary to secondary windings to ensure correct voltage transformation.

• 3. Power Factor Test: Assesses the power factor of the transformer to evalu...read more

HT (High Tension) cables carry high voltage electricity, while LT (Low Tension) cables handle lower voltage levels.

• HT cables typically operate at voltages above 1 kV, used for transmission over long distances.

• LT cables operate at voltages below 1 kV, commonly used for distribution to homes and businesses.

• Examples of HT cables include those used in power plants and substations.

• Examples of LT cables include those used in...read more

LT cable range refers to low tension cables used for electrical distribution in various applications.

• LT cables typically range from 1.1 kV to 33 kV.

• Common types include PVC insulated, XLPE insulated, and rubber insulated cables.

• Used in residential, commercial, and industrial applications.

• Examples include power distribution in buildings and street lighting.

HT cables are high-tension cables used for transmitting electricity at high voltages, typically above 1 kV.

• HT cables are designed for high voltage applications, usually ranging from 1 kV to 33 kV.

• Common types include XLPE (cross-linked polyethylene) and PVC (polyvinyl chloride) insulated cables.

• HT cables are used in power distribution networks, industrial applications, and renewable energy systems.

• Examples of HT cable ...read more