Communications Test Design Associate Technical Engineer Interview Questions and Answers

Diodes and transistors are electronic components used in circuits to control the flow of current.

• Diodes are used to allow current to flow in only one direction, while blocking it in the opposite direction.

• Transistors are used to amplify or switch electronic signals.

• There are different types of diodes such as Zener diodes, Schottky diodes, and LED diodes.

• Transistors can be classified as bipolar junction transistors (BJT...read more

An amplifier is an electronic device that increases the amplitude of a signal.

• Amplifiers are used in audio systems to increase the volume of sound.

• They can also be used in radio and television broadcasting to increase the strength of the signal.

• There are different types of amplifiers, such as transistor amplifiers and vacuum tube amplifiers.

• Amplifiers can have different classes of operation, such as Class A, Class B, a...read more

Optical fibre is a thin, flexible, transparent fibre made of glass or plastic that transmits light signals over long distances.

• Optical fibre is used in telecommunications to transmit data over long distances.

• It works by transmitting light signals through the fibre, which bounce off the walls of the fibre and travel to the other end.

• Optical fibre is faster and more reliable than traditional copper wire.

• It is also used i...read more

There are two types of transformers: step-up and step-down. They work by using electromagnetic induction to transfer energy between circuits.

• Step-up transformers increase voltage while decreasing current

• Step-down transformers decrease voltage while increasing current

• Transformers work by passing alternating current through a primary coil, creating a magnetic field that induces a current in a secondary coil

• The ratio of t...read more