FDNY Z51 Study Guide Updated 2024-2026with All 120
Questions and 100% Correct Answer/ FDNY Z51 Exam
Updated Version
How long must a fire alarm log book be kept - CORRECT ANSWER✔✔3
years
What is the minimum requirement of an engineer needs to log readings
- CORRECT ANSWER✔✔Once per shift
When entering phase 2 firemen service what statement is correct -
CORRECT ANSWER✔✔The elevator operator is the only person that
can control the elevator
You are the only engineer on duty with the machine running a vice
president tells you to shovel snow what should you do - CORRECT
ANSWER✔✔Do not leave the building
How often must you do emergency power testing - CORRECT ANSWER
✔✔Monthly
What is the responsibility of AB29 certificate of fitness holder -
CORRECT ANSWER✔✔Inspect the battery system
An engineer observes a gauge to read saturation pressure of refrigerant
if chilled water circulated as the cooling medium this reading best be
used to estimate the - CORRECT ANSWER✔✔Temperature of the
chilled water being pumped to the spaces being cooled
, Regardless of the ASHRAE refrigeration classification in use in the event
of a refrigerant escape the engineer should be aware of - CORRECT
ANSWER✔✔asphyxiation
When is a chemical fire extinguisher and system needed - CORRECT
ANSWER✔✔Where water is not sufficient
What type of refrigerants found inside the machines gages - CORRECT
ANSWER✔✔Same type as the refrigerant inside the machine
Fireproof decorations in buildings are used for - CORRECT ANSWER✔✔
They don't catch fire in an emergency
Water regulating valves are used for - CORRECT ANSWER✔✔Maintain
condenser pressure To a pre determined level
How long does it take to warm up a steam turbine - CORRECT ANSWER
✔✔10 to 15 minutes
Why is a pressure relief out better than a fusible plugs - CORRECT
ANSWER✔✔Minimize refrigerant los
You are performing hot work near a sprinkler head what can you do to
prevent the fire alarm system from going off - CORRECT ANSWER✔✔
Put a non combustible barrier to protect the sprinkler
What type of sprinkler heads need inspecting - CORRECT ANSWER✔✔
Automatic
Filter driers remove - CORRECT ANSWER✔✔Moisture and particles
Questions and 100% Correct Answer/ FDNY Z51 Exam
Updated Version
How long must a fire alarm log book be kept - CORRECT ANSWER✔✔3
years
What is the minimum requirement of an engineer needs to log readings
- CORRECT ANSWER✔✔Once per shift
When entering phase 2 firemen service what statement is correct -
CORRECT ANSWER✔✔The elevator operator is the only person that
can control the elevator
You are the only engineer on duty with the machine running a vice
president tells you to shovel snow what should you do - CORRECT
ANSWER✔✔Do not leave the building
How often must you do emergency power testing - CORRECT ANSWER
✔✔Monthly
What is the responsibility of AB29 certificate of fitness holder -
CORRECT ANSWER✔✔Inspect the battery system
An engineer observes a gauge to read saturation pressure of refrigerant
if chilled water circulated as the cooling medium this reading best be
used to estimate the - CORRECT ANSWER✔✔Temperature of the
chilled water being pumped to the spaces being cooled
, Regardless of the ASHRAE refrigeration classification in use in the event
of a refrigerant escape the engineer should be aware of - CORRECT
ANSWER✔✔asphyxiation
When is a chemical fire extinguisher and system needed - CORRECT
ANSWER✔✔Where water is not sufficient
What type of refrigerants found inside the machines gages - CORRECT
ANSWER✔✔Same type as the refrigerant inside the machine
Fireproof decorations in buildings are used for - CORRECT ANSWER✔✔
They don't catch fire in an emergency
Water regulating valves are used for - CORRECT ANSWER✔✔Maintain
condenser pressure To a pre determined level
How long does it take to warm up a steam turbine - CORRECT ANSWER
✔✔10 to 15 minutes
Why is a pressure relief out better than a fusible plugs - CORRECT
ANSWER✔✔Minimize refrigerant los
You are performing hot work near a sprinkler head what can you do to
prevent the fire alarm system from going off - CORRECT ANSWER✔✔
Put a non combustible barrier to protect the sprinkler
What type of sprinkler heads need inspecting - CORRECT ANSWER✔✔
Automatic
Filter driers remove - CORRECT ANSWER✔✔Moisture and particles
