MN State Special Boiler License Study Guide ASME - ANSWER American Society of Mechanical Engineers NBIC - ANSWER National Board Inspection Code A high-pressure steam boiler is required to have ______ valves on the main steam line. - ANSWER 2 10 square feet is equivalent to _____ boiler horsepower for conventional boilers -
ANSWER 1
Minimum size pipe to be used to connect a water column to high pressure boilers
- ANSWER 1 inch 1 / 2
Water Columns of steel must be used if pressure is over _____ - ANSWER 350 psi Minimum size drain required on a water column is - ANSWER 3/4 inch If water gauge glass becomes inoperable on steam boiler, the boiler could temporarily operate using - ANSWER gauge-cocks (try-cocks) Dial on a steam gauge on a low-pressure boiler must be graduated from ________ times the maximum allowable working pressure - ANSWER 1 1/2 to 2 Minimum size of pipe diameter that may be used to attach a steam gauge to a steam boiler - ANSWER 1/4 inch
- / 2