Al Gihaz Holding Electrical Technician Interview Questions and Answers

A diode is an electronic component that allows current to flow in one direction and blocks it in the opposite direction.

• Diodes are made of semiconductor materials, such as silicon or germanium.

• They have two terminals: an anode (positive terminal) and a cathode (negative terminal).

• When a diode is forward-biased (positive voltage applied to the anode), it allows current to flow through it.

• When a diode is reverse-biased (...read more

FET (Field Effect Transistor) is a type of transistor that uses an electric field to control the flow of current.

• FETs are voltage-controlled devices, meaning they are controlled by the voltage applied to their terminals.

• There are two main types of FETs: MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) and JFET (Junction Field Effect Transistor).

• MOSFETs are widely used in various electronic devices, such as co...read more

The working of all types of motors involves the conversion of electrical energy into mechanical energy.

• Motors are devices that use electromagnetic principles to generate rotational motion.

• They consist of a stator (stationary part) and a rotor (rotating part).

• The stator contains coils of wire that create a magnetic field when an electrical current passes through them.

• The rotor, which is usually made of a permanent magne...read more

I am an experienced Electrical Technician with knowledge in HT panel protection, DG exhaust smoke color details, SLD drawing, and chiller refrigerant cycle.

• I have expertise in ensuring the protection of HT panels by implementing appropriate safety measures and devices.

• I am familiar with the different colors of DG exhaust smoke and their significance. For example, black smoke indicates incomplete combustion, while white...read more

MCB, MCCB, ELCB are electrical protection devices used in electrical circuits.

• MCB stands for Miniature Circuit Breaker and is used for low voltage applications.

• MCCB stands for Molded Case Circuit Breaker and is used for high voltage applications.

• ELCB stands for Earth Leakage Circuit Breaker and is used to detect and protect against electrical leakage.

• All three devices are used to protect electrical circuits from overlo