Bhilai Engineering Corporation Electrical Engineer Interview Questions and Answers

Star Delta starter is a type of motor starting method used in three-phase electrical systems.

• It is used to reduce the starting current of the motor.

• It involves connecting the motor windings in a star configuration during starting and then switching to a delta configuration for normal operation.

• It is commonly used in applications where the motor has a high starting current, such as in large pumps or compressors.

• It requi...read more

Cable insulation depends on voltage.

• The voltage rating of the insulation determines the maximum voltage that can be applied to the cable without causing breakdown.

• Higher voltage applications require thicker insulation to prevent electrical arcing.

• Current rating of the cable is determined by the conductor size and material, not the insulation.

• Examples of cable insulation materials include PVC, XLPE, and rubber.

• Insulatio...read more

Multi-strand cables are used to increase flexibility and reduce breakage.

• Multi-strand cables are more flexible than single-strand cables.

• They are less prone to breakage due to their ability to distribute stress over multiple strands.

• Multi-strand cables are commonly used in applications that require frequent bending or movement, such as robotics or audio equipment.

• They are also used in high-voltage applications to reduc...read more