Popular Vehicles and Services Interview Questions and Answers

Voltage is the measure of electrical potential difference between two points, while current is the flow of electric charge.

• Voltage is measured in volts (V) and current is measured in amperes (A)

• Voltage is necessary to create a current flow

• Ohm's law relates voltage, current, and resistance: V = IR

• Examples of voltage sources include batteries and power outlets

• Examples of current include the flow of electrons in a circuit

A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.

• Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.

• They consist of two coils of wire, called the primary and secondary coils, wrapped around a magnetic core.

• When an AC current flows through the primary coil, it creates a magnetic field that induces a voltage in the secondary coil.

• Transformers ar...read more

Transformers are devices that transfer electrical energy from one circuit to another through electromagnetic induction.

• Transformers are of two types: step-up transformers and step-down transformers.

• Step-up transformers increase the voltage while decreasing the current, while step-down transformers decrease the voltage while increasing the current.

• Other types of transformers include isolation transformers, autotransformers, and instrument transformers.

• Transformers are used in ...read more

Machine up refers to the process of preparing a machine for operation.

• It involves checking and ensuring that all components of the machine are in working order.

• This includes inspecting for any damage or wear and tear.

• Machine up also involves lubricating the machine and filling it with the necessary fluids.

• It is important to follow the manufacturer's instructions for machine up to ensure safe and efficient operation.

• Examples of machines that require machine up include tractors...read more

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

• Ohm's law is a fundamental law of electrical engineering.

• It states that the current flowing through a conductor is directly proportional to the voltage applied across it.

• The proportionality constant is known as resistance and is measured in ohms.

• The formula for Ohm's law is I = V/R, where I is the current, V is the voltage, and R is the resist...read more