CSCT Exam Actual Exam QUESTIONS AND
ANSWERS 2026 | Certified Cardiology
Technologist Complete Solution Guide A+
Graded | Pass Guaranteed - A+ Graded
Question 1
A fire-tube boiler is characterized by which fundamental design feature?
A. Water circulates through tubes while combustion gases surround the tubes externally
B. Hot combustion gases pass through tubes that are surrounded by water [CORRECT]
C. Water and gases mix directly in a single combustion chamber without tube separation
D. Electric resistance elements heat water directly without combustion
Correct Answer: B
Rationale: Fire-tube boilers (also called shell boilers) contain the combustion gases inside tubes
that are submerged in water within a larger pressure vessel (shell). Heat transfers through the
tube walls to the surrounding water. This design is common in smaller, low-to-medium pressure
applications (up to 350 psig typically). Water-tube boilers (A) have the opposite configuration—
water inside tubes, gases outside—and are used for higher pressures and larger capacities. Direct
mixing (C) is not a boiler design. Electric boilers (D) use immersion elements or electrode
systems. Fire-tube advantages: simpler construction, lower initial cost, compact size, better
response to load changes. Disadvantages: limited pressure capacity, slower steam generation,
greater risk of catastrophic failure due to large water volume. Common types include HRT
(Horizontal Return Tubular), Scotch marine, and vertical fire-tube boilers.
Question 2
According to the ASME Boiler and Pressure Vessel Code, which section governs the
construction requirements for power boilers?
A. ASME Section I - Rules for Construction of Power Boilers [CORRECT]
B. ASME Section IV - Rules for Construction of Heating Boilers
C. ASME Section VIII - Rules for Construction of Pressure Vessels
D. ASME Section XI - Rules for In-service Inspection of Nuclear Power Plant Components
Correct Answer: A
,Rationale: ASME Section I establishes requirements for all power boilers (high pressure, steam
generation for power or process), including materials, design, fabrication, inspection, and testing.
Section IV (B) covers heating boilers (low pressure, limited to 15 psig steam or 160 psig water
for heating applications). Section VIII (C) covers unfired pressure vessels. Section XI (D) is
nuclear-specific. CSCT technicians must understand jurisdictional boundaries: Section I boilers
require certified operators in most jurisdictions, have stringent inspection requirements, and
operate at higher pressures and temperatures. The 2026 ASME Code updates include revised
materials specifications and enhanced digital documentation requirements. Technicians should
verify which code section applies to their specific boiler installation as requirements differ
significantly.
Question 3
One boiler horsepower (BHP) is defined as the ability to evaporate:
A. 33,475 BTU per hour of heat input
B. 34.5 pounds of water per hour from and at 212°F feedwater temperature [CORRECT]
C. 100 square feet of heating surface area
D. 1 kilowatt of electrical power equivalent
Correct Answer: B
Rationale: The historical definition of boiler horsepower (developed by early boiler
manufacturers) is the evaporation of 34.5 pounds of water per hour into dry saturated steam at
212°F when feedwater is supplied at 212°F. This equals approximately 33,475 BTU/hr heat
absorption (A is the heat equivalent, not the definition). Heating surface (C) was historically
related but is no longer the defining standard. Electrical equivalence (D) is not relevant to steam
boiler rating. Modern boiler ratings typically use actual steam output capacity (pounds per hour
or kilograms per hour) or heat input/output (MBH, kW). However, BHP remains common in
North American specifications; 1 BHP ≈ 13.15 kg steam/hr from/at 100°C. Technicians must be
able to convert between rating systems for proper sizing and operation.
Question 4
A Scotch marine boiler is classified as which type of fire-tube boiler configuration?
A. Externally fired with furnace outside the pressure vessel
B. Internally fired with furnace and tubes completely contained within the shell [CORRECT]
C. Vertical tube arrangement with cross-flow design
D. Water-tube design with bent tube configuration
Correct Answer: B
,Rationale: The Scotch marine boiler is a internally fired, horizontal return fire-tube boiler where
the furnace (combustion chamber) and multiple tube passes are entirely contained within the
cylindrical steel shell. This compact, efficient design is common in marine applications (hence
the name) and industrial heating. The furnace is at one end, with combustion gases passing
through tubes to the other end, then returning through additional tube passes before exiting to the
stack. Externally fired designs (A) like the HRT boiler have the furnace separate from the shell.
Vertical (C) and water-tube (D) describe different categories. Scotch marine boilers offer good
efficiency, rapid steam generation, and compact footprint, but have limited pressure capability
(typically under 250 psig) and can be difficult to clean and maintain due to the internal furnace
configuration.
Question 5
Which water-tube boiler configuration features a single water drum with two steam drums
arranged in an "A" shape when viewed from the end?
A. D-type boiler
B. A-type boiler [CORRECT]
C. O-type boiler
D. Stirling boiler
Correct Answer: B
Rationale: The A-type water-tube boiler has a single lower water drum and two upper steam
drums, with bent tubes connecting them in an "A" configuration when viewed from the end. This
design provides good steam separation and water circulation. D-type boilers (A) have one steam
drum, one water drum, and an "D" shape with the drum on the left and furnace on the right. O-
type boilers (C) have a central furnace surrounded by tubes in an "O" configuration. Stirling
boilers (D) are bent-tube boilers with multiple drums. Water-tube boilers are preferred for high
pressure (>350 psig), high capacity, and power generation because: smaller water volumes
reduce catastrophic failure risk, better circulation prevents overheating, and designs allow
superheaters and economizers. The 2026 CSCT exam emphasizes understanding when each
boiler type is appropriate based on pressure, capacity, and application requirements.
Question 6
Cast iron sectional boilers are typically limited to which maximum working pressure?
A. 15 psig steam or 30 psig water
B. 15 psig steam or 160 psig water at 250°F [CORRECT]
C. 150 psig steam or 300 psig water
, D. 600 psig for both steam and water
Correct Answer: B
Rationale: ASME Section IV limits cast iron boilers to 15 psig steam and 160 psig water at
250°F maximum. These limits reflect cast iron's mechanical properties—brittle material with
limited tensile strength that cannot withstand high pressures. Cast iron boilers are assembled
from individual sections sealed with push nipples or gaskets, allowing modular sizing.
Advantages: corrosion resistance, long life with proper water treatment, modular replacement of
sections. Disadvantages: pressure limitations, weight, slow response to load changes, potential
for section leaks. They are common in residential and light commercial heating applications.
Exceeding pressure limits risks catastrophic brittle fracture. Technicians must verify pressure
ratings on the boiler nameplate and ensure safety relief devices are properly sized and set below
maximum allowable working pressure (MAWP).
Question 7
High-pressure boilers are defined by ASME Section I as those operating above:
A. 15 psig
B. 100 psig
C. 160 psig [CORRECT]
D. 300 psig
Correct Answer: C
Rationale: ASME Section I defines high-pressure boilers as those exceeding 160 psig or 250°F
water temperature. This threshold distinguishes power boilers (Section I) from heating boilers
(Section IV, limited to 15 psig steam or 160 psig water at 250°F). The 160 psig limit is historical
and based on materials and safety considerations at the time of code development. High-pressure
boilers require: certified operators (in most jurisdictions), more frequent inspections, additional
safety devices, and stricter maintenance protocols. The 2026 CSCT exam emphasizes that
technicians must know jurisdictional requirements as they vary by state/province. Some
jurisdictions use 15 psig as the threshold for operator licensing; others use 100 psig or 160 psig.
Always verify local requirements.
Question 8
Electric boilers generate steam or hot water using which heating method?
A. Combustion of fuel with flame impingement on tubes
B. Electric resistance heating elements or electrode immersion [CORRECT]
C. Nuclear fission reactions
ANSWERS 2026 | Certified Cardiology
Technologist Complete Solution Guide A+
Graded | Pass Guaranteed - A+ Graded
Question 1
A fire-tube boiler is characterized by which fundamental design feature?
A. Water circulates through tubes while combustion gases surround the tubes externally
B. Hot combustion gases pass through tubes that are surrounded by water [CORRECT]
C. Water and gases mix directly in a single combustion chamber without tube separation
D. Electric resistance elements heat water directly without combustion
Correct Answer: B
Rationale: Fire-tube boilers (also called shell boilers) contain the combustion gases inside tubes
that are submerged in water within a larger pressure vessel (shell). Heat transfers through the
tube walls to the surrounding water. This design is common in smaller, low-to-medium pressure
applications (up to 350 psig typically). Water-tube boilers (A) have the opposite configuration—
water inside tubes, gases outside—and are used for higher pressures and larger capacities. Direct
mixing (C) is not a boiler design. Electric boilers (D) use immersion elements or electrode
systems. Fire-tube advantages: simpler construction, lower initial cost, compact size, better
response to load changes. Disadvantages: limited pressure capacity, slower steam generation,
greater risk of catastrophic failure due to large water volume. Common types include HRT
(Horizontal Return Tubular), Scotch marine, and vertical fire-tube boilers.
Question 2
According to the ASME Boiler and Pressure Vessel Code, which section governs the
construction requirements for power boilers?
A. ASME Section I - Rules for Construction of Power Boilers [CORRECT]
B. ASME Section IV - Rules for Construction of Heating Boilers
C. ASME Section VIII - Rules for Construction of Pressure Vessels
D. ASME Section XI - Rules for In-service Inspection of Nuclear Power Plant Components
Correct Answer: A
,Rationale: ASME Section I establishes requirements for all power boilers (high pressure, steam
generation for power or process), including materials, design, fabrication, inspection, and testing.
Section IV (B) covers heating boilers (low pressure, limited to 15 psig steam or 160 psig water
for heating applications). Section VIII (C) covers unfired pressure vessels. Section XI (D) is
nuclear-specific. CSCT technicians must understand jurisdictional boundaries: Section I boilers
require certified operators in most jurisdictions, have stringent inspection requirements, and
operate at higher pressures and temperatures. The 2026 ASME Code updates include revised
materials specifications and enhanced digital documentation requirements. Technicians should
verify which code section applies to their specific boiler installation as requirements differ
significantly.
Question 3
One boiler horsepower (BHP) is defined as the ability to evaporate:
A. 33,475 BTU per hour of heat input
B. 34.5 pounds of water per hour from and at 212°F feedwater temperature [CORRECT]
C. 100 square feet of heating surface area
D. 1 kilowatt of electrical power equivalent
Correct Answer: B
Rationale: The historical definition of boiler horsepower (developed by early boiler
manufacturers) is the evaporation of 34.5 pounds of water per hour into dry saturated steam at
212°F when feedwater is supplied at 212°F. This equals approximately 33,475 BTU/hr heat
absorption (A is the heat equivalent, not the definition). Heating surface (C) was historically
related but is no longer the defining standard. Electrical equivalence (D) is not relevant to steam
boiler rating. Modern boiler ratings typically use actual steam output capacity (pounds per hour
or kilograms per hour) or heat input/output (MBH, kW). However, BHP remains common in
North American specifications; 1 BHP ≈ 13.15 kg steam/hr from/at 100°C. Technicians must be
able to convert between rating systems for proper sizing and operation.
Question 4
A Scotch marine boiler is classified as which type of fire-tube boiler configuration?
A. Externally fired with furnace outside the pressure vessel
B. Internally fired with furnace and tubes completely contained within the shell [CORRECT]
C. Vertical tube arrangement with cross-flow design
D. Water-tube design with bent tube configuration
Correct Answer: B
,Rationale: The Scotch marine boiler is a internally fired, horizontal return fire-tube boiler where
the furnace (combustion chamber) and multiple tube passes are entirely contained within the
cylindrical steel shell. This compact, efficient design is common in marine applications (hence
the name) and industrial heating. The furnace is at one end, with combustion gases passing
through tubes to the other end, then returning through additional tube passes before exiting to the
stack. Externally fired designs (A) like the HRT boiler have the furnace separate from the shell.
Vertical (C) and water-tube (D) describe different categories. Scotch marine boilers offer good
efficiency, rapid steam generation, and compact footprint, but have limited pressure capability
(typically under 250 psig) and can be difficult to clean and maintain due to the internal furnace
configuration.
Question 5
Which water-tube boiler configuration features a single water drum with two steam drums
arranged in an "A" shape when viewed from the end?
A. D-type boiler
B. A-type boiler [CORRECT]
C. O-type boiler
D. Stirling boiler
Correct Answer: B
Rationale: The A-type water-tube boiler has a single lower water drum and two upper steam
drums, with bent tubes connecting them in an "A" configuration when viewed from the end. This
design provides good steam separation and water circulation. D-type boilers (A) have one steam
drum, one water drum, and an "D" shape with the drum on the left and furnace on the right. O-
type boilers (C) have a central furnace surrounded by tubes in an "O" configuration. Stirling
boilers (D) are bent-tube boilers with multiple drums. Water-tube boilers are preferred for high
pressure (>350 psig), high capacity, and power generation because: smaller water volumes
reduce catastrophic failure risk, better circulation prevents overheating, and designs allow
superheaters and economizers. The 2026 CSCT exam emphasizes understanding when each
boiler type is appropriate based on pressure, capacity, and application requirements.
Question 6
Cast iron sectional boilers are typically limited to which maximum working pressure?
A. 15 psig steam or 30 psig water
B. 15 psig steam or 160 psig water at 250°F [CORRECT]
C. 150 psig steam or 300 psig water
, D. 600 psig for both steam and water
Correct Answer: B
Rationale: ASME Section IV limits cast iron boilers to 15 psig steam and 160 psig water at
250°F maximum. These limits reflect cast iron's mechanical properties—brittle material with
limited tensile strength that cannot withstand high pressures. Cast iron boilers are assembled
from individual sections sealed with push nipples or gaskets, allowing modular sizing.
Advantages: corrosion resistance, long life with proper water treatment, modular replacement of
sections. Disadvantages: pressure limitations, weight, slow response to load changes, potential
for section leaks. They are common in residential and light commercial heating applications.
Exceeding pressure limits risks catastrophic brittle fracture. Technicians must verify pressure
ratings on the boiler nameplate and ensure safety relief devices are properly sized and set below
maximum allowable working pressure (MAWP).
Question 7
High-pressure boilers are defined by ASME Section I as those operating above:
A. 15 psig
B. 100 psig
C. 160 psig [CORRECT]
D. 300 psig
Correct Answer: C
Rationale: ASME Section I defines high-pressure boilers as those exceeding 160 psig or 250°F
water temperature. This threshold distinguishes power boilers (Section I) from heating boilers
(Section IV, limited to 15 psig steam or 160 psig water at 250°F). The 160 psig limit is historical
and based on materials and safety considerations at the time of code development. High-pressure
boilers require: certified operators (in most jurisdictions), more frequent inspections, additional
safety devices, and stricter maintenance protocols. The 2026 CSCT exam emphasizes that
technicians must know jurisdictional requirements as they vary by state/province. Some
jurisdictions use 15 psig as the threshold for operator licensing; others use 100 psig or 160 psig.
Always verify local requirements.
Question 8
Electric boilers generate steam or hot water using which heating method?
A. Combustion of fuel with flame impingement on tubes
B. Electric resistance heating elements or electrode immersion [CORRECT]
C. Nuclear fission reactions
