10+ SOLAR SEWAGE BASIC INFRASTRUCTURE Interview Questions and Answers

The can resistance of an electric bus varies depending on the specific model and components used.

• The can resistance of an electric bus can range from 0.1 ohms to 1 ohm.

• Factors such as the size of the bus, the type of batteries used, and the efficiency of the electric motors can all affect the can resistance.

• For example, a smaller electric bus with high-performance batteries and motors may have a lower can resistance compared to a larger bus with standard components.

The primary tools for an electrician include pliers, wire strippers, screwdrivers, voltage testers, and power drills.

• Pliers are used to grip and twist wires and other components.

• Wire strippers are used to remove insulation from wires.

• Screwdrivers are used to tighten or loosen screws.

• Voltage testers are used to check if a circuit is live or not.

• Power drills are used to drill holes and drive screws.

To connect HV battery to electric bus, follow safety protocols, identify positive and negative terminals, use appropriate cables and connectors, and ensure proper insulation.

• Ensure safety protocols are followed to prevent electric shock or short circuits

• Identify positive and negative terminals on both the HV battery and electric bus

• Use appropriate cables and connectors rated for high voltage

• Ensure proper insulation to prevent any electrical hazards

• Follow manufacturer's guidel...read more

Building Management System

• BMS stands for Building Management System

• It is a computer-based control system installed in buildings to monitor and manage equipment such as HVAC, lighting, security, and more

• BMS helps in optimizing energy usage, improving comfort levels, and enhancing overall building efficiency

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils.

• The primary coil is connected to the input voltage source, while the secondary coil is connected to the output load.

• Transformers are commonly used in power distribution systems to step u...read more

Short-circuits occur due to a low-resistance connection between two conductors.

• Short-circuits can be caused by damaged insulation, faulty wiring, or equipment failure.

• They can result in excessive current flow, overheating, and potential fire hazards.

• Short-circuits can be detected using circuit breakers or fuses that interrupt the flow of electricity.

• Examples of short-circuits include a frayed power cord, a loose connection in an electrical outlet, or a faulty switch.

A motor is a device that converts electrical energy into mechanical energy to produce motion.

• Converts electrical energy into mechanical energy

• Used to produce motion in machines or equipment

• Commonly found in appliances, vehicles, and industrial machinery

Current is the flow of electric charge in a circuit.

• Current is measured in amperes (A).

• It is caused by the movement of electrons or other charged particles.

• Current can flow in both directions in an alternating current (AC) circuit.

• In a direct current (DC) circuit, current flows in only one direction.

• The magnitude of current is determined by the voltage and resistance in the circuit.

• Ohm's Law states that current is equal to voltage divided by resistance (I = V/R).

A diode is a semiconductor device that allows current to flow in one direction only.

• Diods are commonly used in electronic circuits to control the direction of current flow.

• They have two terminals - an anode and a cathode.

• When forward biased, a diode allows current to flow. When reverse biased, it blocks current.

• Examples of diodes include light-emitting diodes (LEDs) and rectifier diodes.

DC current stands for Direct Current, which is the flow of electric charge in a single direction.

• DC current is characterized by a constant and steady flow of electrons in one direction.

• It is commonly produced by batteries, solar cells, and power supplies.

• Unlike AC (Alternating Current), DC current does not change its direction periodically.

• DC current is used in various applications such as powering electronic devices, electric vehicles, and telecommunications systems.