A. One-sixth of tensile strength of plate multiplied by thickness of plate, divided by one-half of the diameter of boiler gives safe working pressure.
Q. How do you estimate the strength of a boiler?
A. By its diameter and thickness of material, single or double riveted.
Q. Which is the stronger, single or double riveted?
A. Double riveted is from 14 to 18 per cent. stronger than single.
Q. What is the use of a mud drum on a boiler?
A. To collect all the sediment from the water used in the boiler.
Q. What causes sediment to accumulate in boilers?
A. The use of impure or muddy water.