A. List the boiler mountings and acccessories. B. Discuss various types of safety valves. C. Explain in the high steam and low water safety D. Explain the working of a water-level indicator with a...

A. List the boiler mountings and acccessories. B. Discuss various types of safety valves. C. Explain in the high steam and low water safety D. Explain the working of a water-level indicator with a neat diagram. E. Explain the working of Bourdon's pressure gauge. F. Discuss in brief with their function G. What is boiler draught and how it is produced by a chimney?