complete study material of IOCL ( Pipeline Division ) Technician Apprentices Electrical Exam Books 2018 at Sura books. Contents ☆ EM Theory ☆ Electrical Materials ☆ Electrical Circuits ☆ Measurements and Instrumentation ☆ Control Systems ♡ Electrical Machines and Power Transformers ♡ Power Systems ♡ Analog & Digital Electronics and Circuits ♡ Microprocessors ♡ Communication Systems ♡ Power Electronics ♡ General Aptitude and Reasoning ✓ General english ✓ Numerical aptitude ✓ General Awareness