FDNY Q01/Q99 Written Exam / Most Recent Exam 2026
Actual Complete Real Exam Questions And Correct
Answers (Verified Answers) Already Graded A+ For
Guaranteed Success | Just Released!!
The capacity of an evaporative condenser will
A) increase as the entering air wet-bulb temperature
decreases
B) increase as the entering air wet-bulb temperature
increases
C) not change with changes in the entering air wet-bulb
temperature
,D) decrease as the entering air wet-bulb temperature
decreases - ANSWER--A) increase as the entering air
wet-bulb temperature decreases
What is capacity? - ANSWER--The ability of a machine to
move btu's
Refrigerant properties can be classified as __________
and __________. - ANSWER--Thermodynamic; physical
True or False —R-22 is always a miscible refrigerant -
ANSWER--False
,Of the following thermal properties of a refrigerant, the
undesirable ones are
A) High viscosity, low pour point
B) High latent heat of evaporation
C) Low critical and high freezing temperature
D) High viscosity and high film heat conductivity -
ANSWER--C) Low critical and high freezing temperature
When heated, R-12 changes to
A) Hydrochloric acid
B) Phosgene
C) Carbon acid
D) Chlorine gas - ANSWER--B) Phosgene
, What is the static setting of a TXV? - ANSWER--4° F
below superheat set point. It is the point that the valve first
rises off its seat
In an NH3 shell-and-tube condenser using sea water, what
would you use as a the metal for the condenser?
A) Black iron
B) Galvanized steel
C) Muntz or admiralty metal
D) Copper - ANSWER--B) Galvanized steel
Lithium Bromide Absorption Machine
A) What is the temperature/psi of the steam coil?
B) Where is it? - ANSWER--A) 12 psig
Actual Complete Real Exam Questions And Correct
Answers (Verified Answers) Already Graded A+ For
Guaranteed Success | Just Released!!
The capacity of an evaporative condenser will
A) increase as the entering air wet-bulb temperature
decreases
B) increase as the entering air wet-bulb temperature
increases
C) not change with changes in the entering air wet-bulb
temperature
,D) decrease as the entering air wet-bulb temperature
decreases - ANSWER--A) increase as the entering air
wet-bulb temperature decreases
What is capacity? - ANSWER--The ability of a machine to
move btu's
Refrigerant properties can be classified as __________
and __________. - ANSWER--Thermodynamic; physical
True or False —R-22 is always a miscible refrigerant -
ANSWER--False
,Of the following thermal properties of a refrigerant, the
undesirable ones are
A) High viscosity, low pour point
B) High latent heat of evaporation
C) Low critical and high freezing temperature
D) High viscosity and high film heat conductivity -
ANSWER--C) Low critical and high freezing temperature
When heated, R-12 changes to
A) Hydrochloric acid
B) Phosgene
C) Carbon acid
D) Chlorine gas - ANSWER--B) Phosgene
, What is the static setting of a TXV? - ANSWER--4° F
below superheat set point. It is the point that the valve first
rises off its seat
In an NH3 shell-and-tube condenser using sea water, what
would you use as a the metal for the condenser?
A) Black iron
B) Galvanized steel
C) Muntz or admiralty metal
D) Copper - ANSWER--B) Galvanized steel
Lithium Bromide Absorption Machine
A) What is the temperature/psi of the steam coil?
B) Where is it? - ANSWER--A) 12 psig
