FDNY Z-51 EXAM QUESTIONS AND
CORRECT ANSWERS EXPERT
VERIFIED GRADED A+.
⩥ What is the responsibility of A B-29 ( cof )certificate of fitness holder.
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. 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. Answer:
Asphyxiation(no oxygen)
⩥ When is a chemical fire extinguisher and system needed. Answer: Where
water is not sufficient
⩥ What type of refrigerants found inside the machine gauge. Answer: Same
type as the refrigerant inside the machine
⩥ Fireproof decorations in buildings used are mandatory. Answer: So they
don't catch fire in an emergency
⩥ Water regulating valves are used for. Answer: Maintain condenser
pressure To a pre- determined level
, ⩥ How long does it take to warm up a steam turbine. Answer: 10 to 15
minutes
⩥ Why is a pressure relief out better than a fusible plugs. Answer: Minimize
refrigerant lost
⩥ You are performing hot work near a sprinkler head what can you do to
prevent the fire alarm system from going off. Answer: Put a non
combustible barrier to protect the sprinkler
⩥ What type of sprinkler heads need inspecting. Answer: Automatic
⩥ Filter driers remove. Answer: Moisture and particles
⩥ You are the engineer running a 2000 t steam driven Turbine centrifugal
rug fridge eration system supplying chilled water to a college campus with
multiple buildings you are supplying 46ﾟ chilled water all the buildings are
satisfied except one building what should you do. Answer: Put on a
additional chilled water pump online
⩥ If 29.92 HG = 14.7 PSIA then 26" HG converts to what in PSIA. Answer:
12.77 (.491 is constant for HG)
⩥ What is the device used to measure the speed of a turbine. Answer:
Tachometer
⩥ The charge in TEV sensing bulb is. Answer: Similar to the refrigerant in
this system
⩥ The cooling medium for a cooling tower is. Answer: Air
CORRECT ANSWERS EXPERT
VERIFIED GRADED A+.
⩥ What is the responsibility of A B-29 ( cof )certificate of fitness holder.
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. 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. Answer:
Asphyxiation(no oxygen)
⩥ When is a chemical fire extinguisher and system needed. Answer: Where
water is not sufficient
⩥ What type of refrigerants found inside the machine gauge. Answer: Same
type as the refrigerant inside the machine
⩥ Fireproof decorations in buildings used are mandatory. Answer: So they
don't catch fire in an emergency
⩥ Water regulating valves are used for. Answer: Maintain condenser
pressure To a pre- determined level
, ⩥ How long does it take to warm up a steam turbine. Answer: 10 to 15
minutes
⩥ Why is a pressure relief out better than a fusible plugs. Answer: Minimize
refrigerant lost
⩥ You are performing hot work near a sprinkler head what can you do to
prevent the fire alarm system from going off. Answer: Put a non
combustible barrier to protect the sprinkler
⩥ What type of sprinkler heads need inspecting. Answer: Automatic
⩥ Filter driers remove. Answer: Moisture and particles
⩥ You are the engineer running a 2000 t steam driven Turbine centrifugal
rug fridge eration system supplying chilled water to a college campus with
multiple buildings you are supplying 46ﾟ chilled water all the buildings are
satisfied except one building what should you do. Answer: Put on a
additional chilled water pump online
⩥ If 29.92 HG = 14.7 PSIA then 26" HG converts to what in PSIA. Answer:
12.77 (.491 is constant for HG)
⩥ What is the device used to measure the speed of a turbine. Answer:
Tachometer
⩥ The charge in TEV sensing bulb is. Answer: Similar to the refrigerant in
this system
⩥ The cooling medium for a cooling tower is. Answer: Air
