Johnson Lifts Lift Technician Interview Questions and Answers

A diode is an electronic component that allows current to flow in only one direction.

• A diode has two terminals: an anode and a cathode.

• It acts as a one-way valve for electric current.

• When the voltage across the diode is positive, it allows current to flow.

• When the voltage across the diode is negative, it blocks the current.

• Diodes are commonly used in rectifier circuits, voltage regulators, and signal demodulation.

A resistor is an electrical component that limits or controls the flow of electric current in a circuit.

• Resistors are used to control the amount of current flowing through a circuit.

• They are passive components that dissipate energy in the form of heat.

• Resistors are measured in ohms (Ω) and have color-coded bands to indicate their resistance value.

• They can be fixed resistors with a specific resistance value or variable ...read more

A lift is a vertical transportation device used to move people or goods between floors or levels of a building.

• Lifts are also known as elevators.

• They are powered by electric motors and use cables, pulleys, and counterweights to move up and down.

• Lifts can be found in various types of buildings such as offices, hospitals, shopping malls, and residential buildings.

• They are designed to carry a certain weight limit and have...read more