FDNY Z51 TEST EXAM ,Z51 WRITTEN TEST TAURIS AND
A STUDY GUIDE EXAM 2024 VERSION 400 QUESTIONS
WITH DETAILED VERIFIED ANSWERS AND
RATIONALES /A+ GRADE ASSURED
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.
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.
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.
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.
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.
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.
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.
Inspection of Sprinkler Heads - ANSWER: Automatic sprinkler heads need inspecting.
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.
PSIA Conversion from HG - ANSWER: If 29.92 HG = 14.7 PSIA, then 26" HG converts
to 12.77 PSIA.
Turbine Speed Measurement Device - ANSWER: The device used to measure the
speed of a turbine is a tachometer.
Charge in TEV Sensing Bulb - ANSWER: The charge in TEV sensing bulb is similar to
the refrigerant in this system.
Cooling Tower Cooling Medium - ANSWER: The cooling medium for a cooling tower
is water
Cost Calculation for Operating a 5 Horsepower Motor - ANSWER: The equivalent
energy consumption of a 5 horsepower motor operating for 9 hours is 33.6 kilowatt
hours.
Refrigerant/Temperature Chart Conversion - ANSWER: If the chart indicates a Celsius
temperature of 5 ﾟ, the equivalent in Fahrenheit is 41 ﾟ.
Centrifugal Chiller Start-up Procedure - ANSWER: Start the chilled water pump, then
start the condenser water pump, check oil, start cooling tower, and start
compressor.
Circuit Breaker Function - ANSWER: A circuit breaker has a similar function as a fuse.
Standpipe Out of Service Fire Watch Duration - ANSWER: If a standpipe system will
be out of service for 2 days, there should be fire watch the entire time the standpipe
is out of service.
Water Supply for Multi Zone Building - ANSWER: Each zone in a multi-zone building
will have its own automatic water supply.
Service Valve for Isolating Dual Pressure Relief Valve - ANSWER: A 3-way valve
should be installed to isolate dual pressure relief valve while keeping the system in
service.
A STUDY GUIDE EXAM 2024 VERSION 400 QUESTIONS
WITH DETAILED VERIFIED ANSWERS AND
RATIONALES /A+ GRADE ASSURED
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.
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.
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.
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.
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.
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.
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.
Inspection of Sprinkler Heads - ANSWER: Automatic sprinkler heads need inspecting.
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.
PSIA Conversion from HG - ANSWER: If 29.92 HG = 14.7 PSIA, then 26" HG converts
to 12.77 PSIA.
Turbine Speed Measurement Device - ANSWER: The device used to measure the
speed of a turbine is a tachometer.
Charge in TEV Sensing Bulb - ANSWER: The charge in TEV sensing bulb is similar to
the refrigerant in this system.
Cooling Tower Cooling Medium - ANSWER: The cooling medium for a cooling tower
is water
Cost Calculation for Operating a 5 Horsepower Motor - ANSWER: The equivalent
energy consumption of a 5 horsepower motor operating for 9 hours is 33.6 kilowatt
hours.
Refrigerant/Temperature Chart Conversion - ANSWER: If the chart indicates a Celsius
temperature of 5 ﾟ, the equivalent in Fahrenheit is 41 ﾟ.
Centrifugal Chiller Start-up Procedure - ANSWER: Start the chilled water pump, then
start the condenser water pump, check oil, start cooling tower, and start
compressor.
Circuit Breaker Function - ANSWER: A circuit breaker has a similar function as a fuse.
Standpipe Out of Service Fire Watch Duration - ANSWER: If a standpipe system will
be out of service for 2 days, there should be fire watch the entire time the standpipe
is out of service.
Water Supply for Multi Zone Building - ANSWER: Each zone in a multi-zone building
will have its own automatic water supply.
Service Valve for Isolating Dual Pressure Relief Valve - ANSWER: A 3-way valve
should be installed to isolate dual pressure relief valve while keeping the system in
service.
