FDNY Z51 Study Guide 2024 Exam
Questions and Correct Detailed
Answers
Engineer's Minimum Reading Log Requirement - Answer: An engineer needs to log readings once
per shift.
Engineer's Minimum Reading Log Requirement - Answer: An engineer needs to log readings once
per shift.
Phase 2 Firemen Service - Answer: The elevator operator is the only person that can control the
elevator.
Phase 2 Firemen Service - Answer: The elevator operator is the only person that can control the
elevator.
Engineer's Responsibility with Running Machine - Answer: If the machine is running, the engineer
should not leave the building.
Engineer's Responsibility with Running Machine - Answer: If the machine is running, the engineer
should not leave the building.
Emergency Power Testing Frequency - Answer: Emergency power testing must be done monthly.
Emergency Power Testing Frequency - Answer: Emergency power testing must be done monthly.
AB29 Certificate of Fitness Holder's Responsibility - Answer: The holder should inspect the battery
system.
AB29 Certificate of Fitness Holder's Responsibility - Answer: The holder should inspect the battery
system.
,Gauge Reading for Chilled Water System - Answer: A gauge reading of saturation pressure of
refrigerant with chilled water as the cooling medium estimates the temperature of the chilled water
being pumped to the spaces being cooled.
Gauge Reading for Chilled Water System - Answer: A gauge reading of saturation pressure of
refrigerant with chilled water as the cooling medium estimates the temperature of the chilled water
being pumped to the spaces being cooled.
Refrigerant Escape Awareness - Answer: In the event of a refrigerant escape, the engineer should be
aware of asphyxiation.
Refrigerant Escape Awareness - Answer: In the event of a refrigerant escape, the engineer should be
aware of asphyxiation.
Chemical Fire Extinguisher and System Requirement - Answer: A chemical fire extinguisher and
system are needed where water is not sufficient.
Chemical Fire Extinguisher and System Requirement - Answer: A chemical fire extinguisher and
system are needed where water is not sufficient.
Refrigerants Inside Machine Gauges - Answer: The refrigerants found inside the machine gauges are
the same type as the refrigerant inside the machine.
Refrigerants Inside Machine Gauges - Answer: The refrigerants found inside the machine gauges are
the same type as the refrigerant inside the machine.
Fireproof Decorations Purpose - Answer: Fireproof decorations in buildings are used so they don't
catch fire in an emergency.
Fireproof Decorations Purpose - Answer: Fireproof decorations in buildings are used so they don't
catch fire in an emergency.
Water Regulating Valves Usage - Answer: Water regulating valves are used to maintain condenser
pressure to a predetermined level.
, Water Regulating Valves Usage - Answer: Water regulating valves are used to maintain condenser
pressure to a predetermined level.
Steam Turbine Warm-up Time - Answer: It takes 10 to 15 minutes to warm up a steam turbine.
Steam Turbine Warm-up Time - Answer: It takes 10 to 15 minutes to warm up a steam turbine.
Pressure Relief Out vs. Fusible Plugs - Answer: A pressure relief out is better than fusible plugs to
minimize refrigerant loss.
Pressure Relief Out vs. Fusible Plugs - Answer: A pressure relief out is better than fusible plugs to
minimize refrigerant loss.
Hot Work Near Sprinkler Head - Answer: To prevent the fire alarm system from going off, put a non-
combustible barrier to protect the sprinkler.
Hot Work Near Sprinkler Head - Answer: To prevent the fire alarm system from going off, put a non-
combustible barrier to protect the sprinkler.
Inspection of Sprinkler Heads - Answer: Automatic sprinkler heads need inspecting.
Inspection of Sprinkler Heads - Answer: Automatic sprinkler heads need inspecting.
Filter Driers Function - Answer: Filter driers remove moisture and particles.
Filter Driers Function - Answer: Filter driers remove moisture and particles.
Action for Unsatisfied Building in Chilled Water System - Answer: If one building is not satisfied, put
in an additional chilled water pump online.
Action for Unsatisfied Building in Chilled Water System - Answer: If one building is not satisfied, put
in an additional chilled water pump online.
Questions and Correct Detailed
Answers
Engineer's Minimum Reading Log Requirement - Answer: An engineer needs to log readings once
per shift.
Engineer's Minimum Reading Log Requirement - Answer: An engineer needs to log readings once
per shift.
Phase 2 Firemen Service - Answer: The elevator operator is the only person that can control the
elevator.
Phase 2 Firemen Service - Answer: The elevator operator is the only person that can control the
elevator.
Engineer's Responsibility with Running Machine - Answer: If the machine is running, the engineer
should not leave the building.
Engineer's Responsibility with Running Machine - Answer: If the machine is running, the engineer
should not leave the building.
Emergency Power Testing Frequency - Answer: Emergency power testing must be done monthly.
Emergency Power Testing Frequency - Answer: Emergency power testing must be done monthly.
AB29 Certificate of Fitness Holder's Responsibility - Answer: The holder should inspect the battery
system.
AB29 Certificate of Fitness Holder's Responsibility - Answer: The holder should inspect the battery
system.
,Gauge Reading for Chilled Water System - Answer: A gauge reading of saturation pressure of
refrigerant with chilled water as the cooling medium estimates the temperature of the chilled water
being pumped to the spaces being cooled.
Gauge Reading for Chilled Water System - Answer: A gauge reading of saturation pressure of
refrigerant with chilled water as the cooling medium estimates the temperature of the chilled water
being pumped to the spaces being cooled.
Refrigerant Escape Awareness - Answer: In the event of a refrigerant escape, the engineer should be
aware of asphyxiation.
Refrigerant Escape Awareness - Answer: In the event of a refrigerant escape, the engineer should be
aware of asphyxiation.
Chemical Fire Extinguisher and System Requirement - Answer: A chemical fire extinguisher and
system are needed where water is not sufficient.
Chemical Fire Extinguisher and System Requirement - Answer: A chemical fire extinguisher and
system are needed where water is not sufficient.
Refrigerants Inside Machine Gauges - Answer: The refrigerants found inside the machine gauges are
the same type as the refrigerant inside the machine.
Refrigerants Inside Machine Gauges - Answer: The refrigerants found inside the machine gauges are
the same type as the refrigerant inside the machine.
Fireproof Decorations Purpose - Answer: Fireproof decorations in buildings are used so they don't
catch fire in an emergency.
Fireproof Decorations Purpose - Answer: Fireproof decorations in buildings are used so they don't
catch fire in an emergency.
Water Regulating Valves Usage - Answer: Water regulating valves are used to maintain condenser
pressure to a predetermined level.
, Water Regulating Valves Usage - Answer: Water regulating valves are used to maintain condenser
pressure to a predetermined level.
Steam Turbine Warm-up Time - Answer: It takes 10 to 15 minutes to warm up a steam turbine.
Steam Turbine Warm-up Time - Answer: It takes 10 to 15 minutes to warm up a steam turbine.
Pressure Relief Out vs. Fusible Plugs - Answer: A pressure relief out is better than fusible plugs to
minimize refrigerant loss.
Pressure Relief Out vs. Fusible Plugs - Answer: A pressure relief out is better than fusible plugs to
minimize refrigerant loss.
Hot Work Near Sprinkler Head - Answer: To prevent the fire alarm system from going off, put a non-
combustible barrier to protect the sprinkler.
Hot Work Near Sprinkler Head - Answer: To prevent the fire alarm system from going off, put a non-
combustible barrier to protect the sprinkler.
Inspection of Sprinkler Heads - Answer: Automatic sprinkler heads need inspecting.
Inspection of Sprinkler Heads - Answer: Automatic sprinkler heads need inspecting.
Filter Driers Function - Answer: Filter driers remove moisture and particles.
Filter Driers Function - Answer: Filter driers remove moisture and particles.
Action for Unsatisfied Building in Chilled Water System - Answer: If one building is not satisfied, put
in an additional chilled water pump online.
Action for Unsatisfied Building in Chilled Water System - Answer: If one building is not satisfied, put
in an additional chilled water pump online.
