LOUISIANA (NEW ORLEANS) SECOND CLASS
STATIONARY BOILERS EXAM STUDY GUIDE
100% CORRECT!
TABLE OF CONTENT
Subtopic 1: Boiler Construction and Design (Questions 1-7)
Subtopic 2: Combustion and Fuel Systems (Questions 8-14)
Subtopic 3: Feedwater and Water Treatment (Questions
15-21)
Subtopic 4: Steam Systems, Piping, and Valves (Questions
22-28)
Subtopic 5: Safety Controls and Instrumentation (Questions
29-36)
Subtopic 6: Operations, Maintenance, and Testing (Questions 37-43
,Subtopic 7: Louisiana & New Orleans Municipal Codes (Questions
44-50)
SECTION 1. Boiler Construction and Design
1. Which type of boiler design allows for the fastest steam generation from a cold start
due to its lower water volume?
A. Horizontal Return Tubular (HRT)
B. Scotch Marine Firetube
C. Watertube
D. Cast Iron Sectional
Correct Answer: C Rationale: Watertube boilers contain less water than firetube boilers of the
same capacity. This lower "thermal fly-wheel" effect allows them to respond faster to load
changes and reach operating pressure more quickly.
2. According to ASME Section I, a "Power Boiler" is defined as a boiler in which steam is
generated at a pressure exceeding:
A. 5psi
B. 15psi
C. 100psi
D. 160psi
Correct Answer: B Rationale: Boilers operating above 15 psi steam (or 160 psi/250°F for water)
3.
A. In
Toasupport
firetubeflat
boiler, what
surfaces is theinternal
against primarypressure
purpose of "staybolts"?
are classified as high-pressure power boilers governed by ASME Section I.
B. To connect the steam drum to the mud drum
, C. To prevent the tubes from sagging
D. To reinforce the boiler setting
Correct Answer: A Rationale: Flat surfaces in a boiler (like heads or water legs) are prone to
bulging under pressure; staybolts provide the necessary structural tension to keep these
surfaces flat.
4. What is the "MAWP" of a boiler?
A. Minimum Allowable Working Pressure
B. Maximum Actual Working Pressure
C. Maximum Allowable Working Pressure
D. Mean Average Water Pressure
Correct Answer: C Rationale: The Maximum Allowable Working Pressure is the highest
pressure at which the boiler is designed to operate safely, as determined by the weakest
component in the pressure vessel.
5. A boiler horsepower (BHP) is defined as the evaporation of how many pounds of water
per hour from and at 212°F?
A. 15.6 lbs
B. 33.47 lbs
C. 34.5 lbs
D. 970.3 lbs
Correct Answer: C Rationale: One boiler horsepower is equivalent to 34.5 pounds of water
evaporated per hour from and at 212°F, which equals 33,475 BTU/hr.
6. Which ASME code symbol indicates a high-pressure power boiler?
A. H
B. S
C. U
D. PP
Correct Answer: B Rationale: The "S" stamp is used for Power Boilers (Section I). "H" is for
heating boilers, "U" for pressure vessels, and "PP" for power piping.
STATIONARY BOILERS EXAM STUDY GUIDE
100% CORRECT!
TABLE OF CONTENT
Subtopic 1: Boiler Construction and Design (Questions 1-7)
Subtopic 2: Combustion and Fuel Systems (Questions 8-14)
Subtopic 3: Feedwater and Water Treatment (Questions
15-21)
Subtopic 4: Steam Systems, Piping, and Valves (Questions
22-28)
Subtopic 5: Safety Controls and Instrumentation (Questions
29-36)
Subtopic 6: Operations, Maintenance, and Testing (Questions 37-43
,Subtopic 7: Louisiana & New Orleans Municipal Codes (Questions
44-50)
SECTION 1. Boiler Construction and Design
1. Which type of boiler design allows for the fastest steam generation from a cold start
due to its lower water volume?
A. Horizontal Return Tubular (HRT)
B. Scotch Marine Firetube
C. Watertube
D. Cast Iron Sectional
Correct Answer: C Rationale: Watertube boilers contain less water than firetube boilers of the
same capacity. This lower "thermal fly-wheel" effect allows them to respond faster to load
changes and reach operating pressure more quickly.
2. According to ASME Section I, a "Power Boiler" is defined as a boiler in which steam is
generated at a pressure exceeding:
A. 5psi
B. 15psi
C. 100psi
D. 160psi
Correct Answer: B Rationale: Boilers operating above 15 psi steam (or 160 psi/250°F for water)
3.
A. In
Toasupport
firetubeflat
boiler, what
surfaces is theinternal
against primarypressure
purpose of "staybolts"?
are classified as high-pressure power boilers governed by ASME Section I.
B. To connect the steam drum to the mud drum
, C. To prevent the tubes from sagging
D. To reinforce the boiler setting
Correct Answer: A Rationale: Flat surfaces in a boiler (like heads or water legs) are prone to
bulging under pressure; staybolts provide the necessary structural tension to keep these
surfaces flat.
4. What is the "MAWP" of a boiler?
A. Minimum Allowable Working Pressure
B. Maximum Actual Working Pressure
C. Maximum Allowable Working Pressure
D. Mean Average Water Pressure
Correct Answer: C Rationale: The Maximum Allowable Working Pressure is the highest
pressure at which the boiler is designed to operate safely, as determined by the weakest
component in the pressure vessel.
5. A boiler horsepower (BHP) is defined as the evaporation of how many pounds of water
per hour from and at 212°F?
A. 15.6 lbs
B. 33.47 lbs
C. 34.5 lbs
D. 970.3 lbs
Correct Answer: C Rationale: One boiler horsepower is equivalent to 34.5 pounds of water
evaporated per hour from and at 212°F, which equals 33,475 BTU/hr.
6. Which ASME code symbol indicates a high-pressure power boiler?
A. H
B. S
C. U
D. PP
Correct Answer: B Rationale: The "S" stamp is used for Power Boilers (Section I). "H" is for
heating boilers, "U" for pressure vessels, and "PP" for power piping.
