Minnesota State Special Engineer Boiler i,- i,- i,- i,- i,-
License Exam Study Guide with complete i,- i,- i,- i,- i,- i,-
Solutions | Latest 2025/2026 Update. i,- i,- i,- i,-
Minimum size of pipe diameter that may be used to attach a
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
steam gauge to a steam boiler
i,- 1/4 inch i,- i,- i,- i,- i,-i,- i,- i,-
Low-pressure boiler Steam boilers at or below 15 psi, Liquid
i,- i,-i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
boilers operating at or below 160 psi AND 250 degrees Fahrenheit
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
High-pressure boiler Steam boiler > 15psi, liquid boilers i,- i,-i,- i,- i,- i,- i,- i,- i,- i,-
operating > 160 psi OR > 250 degrees Fahrenheit
i,- i,- i,- i,- i,- i,- i,- i,-
_________ safety valve required on a steam boiler
i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- Spring i,-
loaded
How many safety valves minimum are needed when the heating
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
surface of a high-pressure boiler exceeds 500 square feet
i,- i,- i,- 2 i,- i,- i,- i,- i,- i,-i,- i,-
Maximum size of safety valve on a low-pressure boiler is
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- 4 i,-
1/2 inch
i,-
, Minimum safety valve size on a regular boiler (high or low
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
pressure) 3/4 inch i,-i,- i,- i,-
Minimum safety valve size on a MINITURE boiler
i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- 1/2 inch i,-
Safety valves on steam boilers should be manually tested
i,- i,- i,- i,- i,- i,- i,- i,- i,-i,- i,-
once a month i,- i,-
Safety valves on a low-pressure boiler should be manually tested
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-i,-
quarterly
i,-
When 2 or more steam valves are located on a steam header line,
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
there must be a ______ located between the 2 valves
i,- drain
i,- i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- i,-
valve
ASME i,-i,- i,- American Society of Mechanical Engineers i,- i,- i,- i,-
NBIC i,-i,- i,- National Board Inspection Code i,- i,- i,-
A high-pressure steam boiler is required to have ______ valves on
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
the main steam line.
i,- 2 i,- i,- i,-i,- i,-
License Exam Study Guide with complete i,- i,- i,- i,- i,- i,-
Solutions | Latest 2025/2026 Update. i,- i,- i,- i,-
Minimum size of pipe diameter that may be used to attach a
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
steam gauge to a steam boiler
i,- 1/4 inch i,- i,- i,- i,- i,-i,- i,- i,-
Low-pressure boiler Steam boilers at or below 15 psi, Liquid
i,- i,-i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
boilers operating at or below 160 psi AND 250 degrees Fahrenheit
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
High-pressure boiler Steam boiler > 15psi, liquid boilers i,- i,-i,- i,- i,- i,- i,- i,- i,- i,-
operating > 160 psi OR > 250 degrees Fahrenheit
i,- i,- i,- i,- i,- i,- i,- i,-
_________ safety valve required on a steam boiler
i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- Spring i,-
loaded
How many safety valves minimum are needed when the heating
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
surface of a high-pressure boiler exceeds 500 square feet
i,- i,- i,- 2 i,- i,- i,- i,- i,- i,-i,- i,-
Maximum size of safety valve on a low-pressure boiler is
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- 4 i,-
1/2 inch
i,-
, Minimum safety valve size on a regular boiler (high or low
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
pressure) 3/4 inch i,-i,- i,- i,-
Minimum safety valve size on a MINITURE boiler
i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- 1/2 inch i,-
Safety valves on steam boilers should be manually tested
i,- i,- i,- i,- i,- i,- i,- i,- i,-i,- i,-
once a month i,- i,-
Safety valves on a low-pressure boiler should be manually tested
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-i,-
quarterly
i,-
When 2 or more steam valves are located on a steam header line,
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
there must be a ______ located between the 2 valves
i,- drain
i,- i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- i,-
valve
ASME i,-i,- i,- American Society of Mechanical Engineers i,- i,- i,- i,-
NBIC i,-i,- i,- National Board Inspection Code i,- i,- i,-
A high-pressure steam boiler is required to have ______ valves on
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-
the main steam line.
i,- 2 i,- i,- i,-i,- i,-
