Instrumentation Specialist Question:

☛ What are the key components of control loop?
☛ Working principle of lvdt?
☛ What is difference between differential pressure & delta pressure?
☛ How to trim the pressure transmitter?
☛ What are different types of cable?
☛ What is the use of control cable?
☛ Which type of diaphragm use in costic line, DM water line, natural gas line, oil line?
☛ What are different types of valves?
☛ What is the hydra step level sensor output value (measuring level of steam drum)?
☛ What is mean by live zero and dead zero?
☛ When a magnet is heated?
☛ Why the degree of valve plugs and valve seat is slightly different I control valve trim design?
☛ What is modbus, profibus, fieldbus?
☛ What is the use of gauge?
☛ How to calibrate differential pressure switch?