FDNY Q-01 CERTIFICATE OF FITNESS EXAM QUESTIONS & ANSWERS 2026-202…
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
FDNY Q-01 Certificate of
Fitness Exam Questions &
Answers 2026-2027 | Latest
Exam Review (Rationales)
Verified Answers Exam Ready With Rationales 195 QUESTIONS
DOCUMENT OVERVIEW
This FDNY Q-01 Certificate of Fitness Exam Review contains 195 questions with provided
correct answers and detailed rationales, covering fundamental building systems
knowledge. It is suitable for exam preparation, offering a direct study resource for
individuals seeking certification. The document is designed for efficient review and mastery
of key concepts.
TOPICS
• Pressure and Relief Devices • Refrigeration System Fundamentals
• Electrical Systems and Motors • Refrigerant Properties and Handling
• Units and Conversions • Cooling Towers and Water Systems
• Compressor Operation and Control • Absorption Systems
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 195
Rupture members, when used in parallel with a relief valve, are not to exceed _____% above
designed working pressure
CORRECT ANSWER
20%
RATIONALE
Rupture members, acting as a backup safety device, are designed to activate at a pressure slightly
above the relief valve's set point to prevent over-pressurization. Codes like ASME typically specify
this activation point to be no more than 20% above the relief valve's set pressure.
Q2 QUESTION 2 OF 195
At what pressure does the relief valve blow on a high pressure machine?
CORRECT ANSWER
300 psi
RATIONALE
The relief valve is set to activate at 300 psi to prevent over-pressurization of the high-pressure
machine's hydraulic system, safeguarding components and personnel. This setting represents the
maximum allowable operating pressure before the valve opens to vent excess fluid.
Q3 QUESTION 3 OF 195
The setting of a fusible plug is
A) 280° F
B) 300° F
C) 380° F
D) 300 psig.
Page 2
, CORRECT ANSWER
A) 280° F
RATIONALE
Fusible plugs are designed to melt at a specific temperature, typically around 280°F for steam
boilers, to release pressure and prevent catastrophic failure. This temperature is below the boiling
point of water at operating pressures to ensure safety.
Q4 QUESTION 4 OF 195
Centrifugal Feed Water Pump
A) Start-up procedure
B) Shut-down procedure
CORRECT ANSWER
A) Start-up procedure
1) Lock-out, tag-out
2) Close discharge valve
3) Open suction valve
4) Turn on
5) Open discharge valve
B) Shut-down procedure
1) Lock-out, tag-out
2) close suction valve
3) close discharge valve
RATIONALE
Proper start-up of a centrifugal feed water pump requires opening the suction valve before the
discharge valve to prevent cavitation and ensure priming, while shut-down involves closing both
valves before lockout/tagout. This sequence protects the pump from damage and ensures safe de-
energization.
Page 3
, Q5 QUESTION 5 OF 195
The minimum required rate discharge capacity of the pressure-relief device or fusible plug
for a refrigerant-containing vessel is determined by the following formula: C = Fd1. What is
"C" equal to?
A) btu/minute
B) Refrigerant pressure
C) Air in pounds/minute
D) Cubic feet/minute
CORRECT ANSWER
C) Air in pounds/minute
RATIONALE
The minimum required discharge capacity (C) of a pressure-relief device for a refrigerant-
containing vessel is quantified in pounds of air per minute, which serves as a standardized measure
for evaluating the device's flow rate capability. This unit reflects the mass flow rate necessary to
safely vent the system's contents under overpressure conditions.
Q6 QUESTION 6 OF 195
The rated discharge capacity of the pressure-relief device or fusible plug for a refrigerant-
containing vessel is determined by the formula C = Fd1. "C" equals
A) btu/minute
B) refrigerant pressure
C) air in pounds/minute
D) cubic feet/minute
CORRECT ANSWER
C) air in pounds/minute
RATIONALE
The rated discharge capacity (C) of a pressure-relief device for a refrigerant-containing vessel is
expressed in pounds per minute of air, representing the mass flow rate required for safe venting.
This standardized unit ensures consistent safety evaluations across different refrigerants and
vessel sizes.
Page 4
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
FDNY Q-01 Certificate of
Fitness Exam Questions &
Answers 2026-2027 | Latest
Exam Review (Rationales)
Verified Answers Exam Ready With Rationales 195 QUESTIONS
DOCUMENT OVERVIEW
This FDNY Q-01 Certificate of Fitness Exam Review contains 195 questions with provided
correct answers and detailed rationales, covering fundamental building systems
knowledge. It is suitable for exam preparation, offering a direct study resource for
individuals seeking certification. The document is designed for efficient review and mastery
of key concepts.
TOPICS
• Pressure and Relief Devices • Refrigeration System Fundamentals
• Electrical Systems and Motors • Refrigerant Properties and Handling
• Units and Conversions • Cooling Towers and Water Systems
• Compressor Operation and Control • Absorption Systems
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 195
Rupture members, when used in parallel with a relief valve, are not to exceed _____% above
designed working pressure
CORRECT ANSWER
20%
RATIONALE
Rupture members, acting as a backup safety device, are designed to activate at a pressure slightly
above the relief valve's set point to prevent over-pressurization. Codes like ASME typically specify
this activation point to be no more than 20% above the relief valve's set pressure.
Q2 QUESTION 2 OF 195
At what pressure does the relief valve blow on a high pressure machine?
CORRECT ANSWER
300 psi
RATIONALE
The relief valve is set to activate at 300 psi to prevent over-pressurization of the high-pressure
machine's hydraulic system, safeguarding components and personnel. This setting represents the
maximum allowable operating pressure before the valve opens to vent excess fluid.
Q3 QUESTION 3 OF 195
The setting of a fusible plug is
A) 280° F
B) 300° F
C) 380° F
D) 300 psig.
Page 2
, CORRECT ANSWER
A) 280° F
RATIONALE
Fusible plugs are designed to melt at a specific temperature, typically around 280°F for steam
boilers, to release pressure and prevent catastrophic failure. This temperature is below the boiling
point of water at operating pressures to ensure safety.
Q4 QUESTION 4 OF 195
Centrifugal Feed Water Pump
A) Start-up procedure
B) Shut-down procedure
CORRECT ANSWER
A) Start-up procedure
1) Lock-out, tag-out
2) Close discharge valve
3) Open suction valve
4) Turn on
5) Open discharge valve
B) Shut-down procedure
1) Lock-out, tag-out
2) close suction valve
3) close discharge valve
RATIONALE
Proper start-up of a centrifugal feed water pump requires opening the suction valve before the
discharge valve to prevent cavitation and ensure priming, while shut-down involves closing both
valves before lockout/tagout. This sequence protects the pump from damage and ensures safe de-
energization.
Page 3
, Q5 QUESTION 5 OF 195
The minimum required rate discharge capacity of the pressure-relief device or fusible plug
for a refrigerant-containing vessel is determined by the following formula: C = Fd1. What is
"C" equal to?
A) btu/minute
B) Refrigerant pressure
C) Air in pounds/minute
D) Cubic feet/minute
CORRECT ANSWER
C) Air in pounds/minute
RATIONALE
The minimum required discharge capacity (C) of a pressure-relief device for a refrigerant-
containing vessel is quantified in pounds of air per minute, which serves as a standardized measure
for evaluating the device's flow rate capability. This unit reflects the mass flow rate necessary to
safely vent the system's contents under overpressure conditions.
Q6 QUESTION 6 OF 195
The rated discharge capacity of the pressure-relief device or fusible plug for a refrigerant-
containing vessel is determined by the formula C = Fd1. "C" equals
A) btu/minute
B) refrigerant pressure
C) air in pounds/minute
D) cubic feet/minute
CORRECT ANSWER
C) air in pounds/minute
RATIONALE
The rated discharge capacity (C) of a pressure-relief device for a refrigerant-containing vessel is
expressed in pounds per minute of air, representing the mass flow rate required for safe venting.
This standardized unit ensures consistent safety evaluations across different refrigerants and
vessel sizes.
Page 4
