make a list of maximum 100 question of your favourite technical subject. and 20 question from each subject.

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List of 100 questions from favourite technical subject

What is the purpose of a heat exchanger?
Explain the difference between a centrifugal pump and a reciprocating pump.
How does a PID controller work in a control system?
What is the difference between stress and strain in materials?
Explain the concept of Ohm's Law in electrical circuits.
What is the function of a capacitor in an electronic circuit?
Describe the operation of a diesel engine.
What are the different types of welding techniques?
Explain the working principle of a refrigeration cycle.
What is the significance of Fourier transform in signal processing?
How does a hydraulic system work in heavy machinery?
What are the different types of bearings used in mechanical systems?
Explain the concept of entropy in thermodynamics.
What is the role of a control valve in a process plant?
Describe the operation of a gas turbine engine.
What are the advantages of using renewable energy sources?
Explain the working principle of a steam turbine.
What are the different types of sensors used in automation?
How does a PLC (Programmable Logic Controller) function in industrial automation?
What is the importance of safety precautions in chemical engineering processes?