Alfanar Electrical Project Engineer Interview Questions and Answers

PNP transistor is a type of bipolar junction transistor. Multimeter is used to measure voltage, current and resistance. Tracing a circuit involves identifying the path of current flow. Mounting and unmounting components on PCB involves soldering and desoldering.

• PNP transistor is a three-layer semiconductor device with emitter, base and collector regions.

• Multimeter can be used in different modes such as voltage, current...read more

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