Technician 1 Interview Questions and Answers

Check valve, flow control valve, butterfly valve, and ball valve are all types of valves used in various industries.

• Check valve: Allows flow in one direction and prevents backflow.

• Flow control valve: Regulates the flow rate of a fluid in a system.

• Butterfly valve: Uses a disc to control flow by rotating it within the valve body.

• Ball valve: Uses a ball-shaped disc to control flow by rotating it within the valve body.

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

• Transformers work on the principle of electromagnetic induction

• They have primary and secondary coils wound around a core

• Step-up transformers increase voltage while step-down transformers decrease voltage

• Efficiency of a transformer is determined by its core material and design