NBIC PART 1 AND 2 EXAM QUESTIONS
AND ANSWERS 100% PASS
An operational test may not be used as the final acceptance of the boiler installation. True or
False? - ANS False, NBIC Part 2 allows an operational test to serve as evidence that the
installation complies with the governing code of construction.
When boilers are connected to a common header, they shall be fitted with two step valves
having an ample free-blow drain between them, for each boiler having a..... - ANS Manhole
(Part 1, 2.7.3)
A steam boiler with a fixed water line that operates at 450 psig is required to have... -
ANS Two direct reading water-gage glasses (NBIC Part 1, 2.8.1)
Austenitic stainless steel steam supply stop valves are permitted in water wetted service. True
or false? - ANS False, NBIC Part 1, 2.7.3 prohibits the use of austenitic stainless steel in water
wetted service.
Prior to initial operation, the completed boiler shall be pressure tested in accordance with the
original code of construction and pressure piping and fittings connected to the boiler when
shipped shall be... - ANS Hydrostatically tested (NBIC part 1, 2.10.2, 1.6.10)
Pressure relief valves shall be connected to the boiler without any unnecessary intervening pipe
or fittings.... - ANS Independent of any connection (NBIC part 1, 2.9.1.2c)
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What type of low-water fuel cutoff is required for an electrode-type electric steam boiler? -
ANS None required (NBIC Part 1, 2.8.5e, no low-water cutoff is required for electrode-type
boilers)
Feedwater other than condensate return shall not be introduced through the blowoff piping.
True or false? - ANS True (NBIC Part 1, 2.5.1.2c)
An economizer that cannot be isolated from the boiler requires a minimum of.... - ANS 0
pressure relief valves, an economizer does not require a pressure relief valve unless the
economizer can be isolated from the boiler.
If there are two egress doors in a 600 sq. Ft. Equipment room, how many remote emergency
shutdown switches will be required? - ANS 2 remote emergency shutdown switches. (NBIC
Part 1, 2.5.3.2b)
A blowdown tank connected to sanitary sewer blowdown water shall be cooled to at least
___________ and the pressure reduced to ___________. - ANS 140F, 5 psig (NBIC Part 1,
3.6.3)
What is the minimum allowed temperature rating of the stop valve or cock for hot-water
heating boiler? - ANS 250F (NBIC part 1, 3.7.5.1d)
What provisions are required to be made for boiler water fill connections? - ANS A means to
prevent back-feeding the service water supply. (NBIC Part 1, 3.5.1b)
An expansion tank installed in a hot-water supply system shall be constructed in accordance
with an applicable code of construction. True or false? - ANS True (NBIC part 1, 3.7.9.1a)
What is the minimum required hydrostatic test pressure of an expansion tank installed in a
closed heating system equipped for a hot-water heating boiler designed with a system pressure
of 25 psig? - ANS 75 psig (In accordance with NBIC Part 1, 3.7.9.1a, if a system is designed for
a working pressure of 30 psig or less, the tank shall be suitably designed for a minimum
hydrostatic test pressure of 75 psig.)
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND ANSWERS 100% PASS
An operational test may not be used as the final acceptance of the boiler installation. True or
False? - ANS False, NBIC Part 2 allows an operational test to serve as evidence that the
installation complies with the governing code of construction.
When boilers are connected to a common header, they shall be fitted with two step valves
having an ample free-blow drain between them, for each boiler having a..... - ANS Manhole
(Part 1, 2.7.3)
A steam boiler with a fixed water line that operates at 450 psig is required to have... -
ANS Two direct reading water-gage glasses (NBIC Part 1, 2.8.1)
Austenitic stainless steel steam supply stop valves are permitted in water wetted service. True
or false? - ANS False, NBIC Part 1, 2.7.3 prohibits the use of austenitic stainless steel in water
wetted service.
Prior to initial operation, the completed boiler shall be pressure tested in accordance with the
original code of construction and pressure piping and fittings connected to the boiler when
shipped shall be... - ANS Hydrostatically tested (NBIC part 1, 2.10.2, 1.6.10)
Pressure relief valves shall be connected to the boiler without any unnecessary intervening pipe
or fittings.... - ANS Independent of any connection (NBIC part 1, 2.9.1.2c)
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What type of low-water fuel cutoff is required for an electrode-type electric steam boiler? -
ANS None required (NBIC Part 1, 2.8.5e, no low-water cutoff is required for electrode-type
boilers)
Feedwater other than condensate return shall not be introduced through the blowoff piping.
True or false? - ANS True (NBIC Part 1, 2.5.1.2c)
An economizer that cannot be isolated from the boiler requires a minimum of.... - ANS 0
pressure relief valves, an economizer does not require a pressure relief valve unless the
economizer can be isolated from the boiler.
If there are two egress doors in a 600 sq. Ft. Equipment room, how many remote emergency
shutdown switches will be required? - ANS 2 remote emergency shutdown switches. (NBIC
Part 1, 2.5.3.2b)
A blowdown tank connected to sanitary sewer blowdown water shall be cooled to at least
___________ and the pressure reduced to ___________. - ANS 140F, 5 psig (NBIC Part 1,
3.6.3)
What is the minimum allowed temperature rating of the stop valve or cock for hot-water
heating boiler? - ANS 250F (NBIC part 1, 3.7.5.1d)
What provisions are required to be made for boiler water fill connections? - ANS A means to
prevent back-feeding the service water supply. (NBIC Part 1, 3.5.1b)
An expansion tank installed in a hot-water supply system shall be constructed in accordance
with an applicable code of construction. True or false? - ANS True (NBIC part 1, 3.7.9.1a)
What is the minimum required hydrostatic test pressure of an expansion tank installed in a
closed heating system equipped for a hot-water heating boiler designed with a system pressure
of 25 psig? - ANS 75 psig (In accordance with NBIC Part 1, 3.7.9.1a, if a system is designed for
a working pressure of 30 psig or less, the tank shall be suitably designed for a minimum
hydrostatic test pressure of 75 psig.)
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
