I have been a Chartered Mechanical, Electrical and Building Services Engineer for 40 years. I have a wide experience of mining, process industries, power generation, construction and mechanical and electrical engineering. I have been instructed on a broad range of matters, ranging from pressure vessels to electronic controls. Most engineers know how systems should work, and how to interpret standards. My speciality is in understanding, and explaining to laymen, why engineering systems do not work as expected, and in devising and implementing proportionate remedial measures. I have a good ...