Al Ahleia Switchgear Electrical Technician Interview Questions and Answers

Circuit breakers protect electrical circuits by interrupting current flow during faults, ensuring safety and preventing damage.

• 1. Miniature Circuit Breaker (MCB): Protects against overloads and short circuits. Example: MCBs rated for 6A, 10A, etc.

• 2. Molded Case Circuit Breaker (MCCB): Used for medium voltage applications, protects against overloads and short circuits. Example: MCCB rated for 100A.

• 3. Earth Leakage Circu...read more

Electrical faults are malfunctions in circuits, leading to failures or hazards like short circuits or overloads.

• Short Circuit: Occurs when current flows through an unintended path, e.g., damaged insulation.

• Open Circuit: A break in the circuit preventing current flow, e.g., a blown fuse.

• Ground Fault: A fault where current leaks to the ground, often due to insulation failure.

• Overload: Excess current flow due to too many

A safety kit for electricians includes essential gear to protect against electrical hazards and ensure safe working conditions.

• Personal Protective Equipment (PPE) such as insulated gloves to prevent electric shock.

• Safety goggles to protect eyes from sparks and debris.

• Hard hats to shield the head from falling objects.

• Insulated tools to reduce the risk of accidental electrical contact.

• First aid kit for immediate response

Electric motors convert electrical energy into mechanical energy, widely used in various applications.

• Types include AC motors (e.g., induction motors) and DC motors (e.g., brushed and brushless motors).

• Induction motors are commonly used in industrial applications due to their robustness.

• DC motors are often found in applications requiring variable speed control, like electric vehicles.

• Stepper motors are used in precisio...read more

Module testing is a software testing technique where individual units or modules of a program are tested in isolation from the rest of the code.

• Module testing helps identify defects in individual units of code before integrating them into the larger system.

• It involves testing each module independently to ensure they function correctly and meet the specified requirements.

• Examples of module testing tools include JUnit fo