Class D Electrical License Questions With Complete
Solutions
____ detectors are used to shut down elevator power prior to
sprinkler operation. Correct Answers Heat
(NFPA 72, Article 24.4.1)
A compartment of chamber to which two air ducts are connected
and which forms a part of the air distribution system is called?
Correct Answers Plenum
(NFPA 70, Article 300.22, Pg. 148)
(NFPA 70, Article 100)
A DACT shall be connected to: Correct Answers A public
switched telephone network upstream of any private telephone
system at the protected premise
(NFPA 72, Article 26.6.4.1.1)
A Fire Alarm cable installed under a slab to a fire sprinkler flow
switch, the cable is not installed in conduit the cable shall be?
Correct Answers Listed for wet locations
(NFPA 70, Article 310.10(C3))
A fire sprinkler water flow switch, when actuated, will produce
a(n) ____ signal. Correct Answers Alarm
(NFPA 72, Article 17.12.1, Pg. 105)
A large, open plan area has 28 ft high ceilings. By a 110 candela
(cd) ceiling-mount strobe?
What is the maximum size square space that can be covered?
Correct Answers 53 ft x 53 ft
,(NFPA 72, Article 18.5.5.4.1(b), Pg. 110)
A manual fire alarm box ( A.K.A. pull station), when actuated,
will produce a(n) ____ signal. Correct Answers Alarm
A performance-based design of visible notification requires:
Correct Answers A design that provides a minimum of 0.0375
lumens/ft²
(NFPA 72, Article 18.5.5.6.1)
A photoelectric smoke detector is best at detecting the following
types of fires: Correct Answers Smoldering fires
(NFPA 72, 17.7.7, Pg. 103)
A pull station is mounted near an inside corner in a hall how
close to the corner can it be mounted Correct Answers 18"
A rectifier converts? Correct Answers AC to DC
A resistor has color bands of red, violet, brown, and gold. What
is the resistance and tolerance of the resistor? Correct Answers
270 Ω, 5%
A strobe, horn, bell, or chime is connected to a(n) _________.
Correct Answers notification appliance circuit
(NFPA 72, Article 3.3.172, Pg.)
A zigzag line in a schematic diagram represents a ___. Correct
Answers resistor
, A(n) __ system is a system used to deny those without proper
credentials access to a specific building, area, or room. Correct
Answers Access control
According to Article 760 of the NEC, the fire alarm conductors
must be protected from mechanical damage when the cable is
installed within ___ of the finished floor. Correct Answers 7
feet
(NFPA 70, Article 760.53(A2), Pg. 649)
According to Massachusetts General Law a Certificate B holder
is a? Correct Answers Journeyman Electrician License
According to Massachusetts General Law a Certificate D holder
is a? Correct Answers System Technician
Alarm notification appliances must be tested: Correct Answers
Annually
(NFPA 72, Article 14.3.1, Pg. 79)
Alarm notification appliances must be tested: Correct Answers
annually
(NFPA 72, Article T14.4.3.2)
An active multiplex system in which signaling device such as
___ are employed to transmit status. Correct Answers
transponder
(NFPA 72, Article 3.3.7, Pg.)
Solutions
____ detectors are used to shut down elevator power prior to
sprinkler operation. Correct Answers Heat
(NFPA 72, Article 24.4.1)
A compartment of chamber to which two air ducts are connected
and which forms a part of the air distribution system is called?
Correct Answers Plenum
(NFPA 70, Article 300.22, Pg. 148)
(NFPA 70, Article 100)
A DACT shall be connected to: Correct Answers A public
switched telephone network upstream of any private telephone
system at the protected premise
(NFPA 72, Article 26.6.4.1.1)
A Fire Alarm cable installed under a slab to a fire sprinkler flow
switch, the cable is not installed in conduit the cable shall be?
Correct Answers Listed for wet locations
(NFPA 70, Article 310.10(C3))
A fire sprinkler water flow switch, when actuated, will produce
a(n) ____ signal. Correct Answers Alarm
(NFPA 72, Article 17.12.1, Pg. 105)
A large, open plan area has 28 ft high ceilings. By a 110 candela
(cd) ceiling-mount strobe?
What is the maximum size square space that can be covered?
Correct Answers 53 ft x 53 ft
,(NFPA 72, Article 18.5.5.4.1(b), Pg. 110)
A manual fire alarm box ( A.K.A. pull station), when actuated,
will produce a(n) ____ signal. Correct Answers Alarm
A performance-based design of visible notification requires:
Correct Answers A design that provides a minimum of 0.0375
lumens/ft²
(NFPA 72, Article 18.5.5.6.1)
A photoelectric smoke detector is best at detecting the following
types of fires: Correct Answers Smoldering fires
(NFPA 72, 17.7.7, Pg. 103)
A pull station is mounted near an inside corner in a hall how
close to the corner can it be mounted Correct Answers 18"
A rectifier converts? Correct Answers AC to DC
A resistor has color bands of red, violet, brown, and gold. What
is the resistance and tolerance of the resistor? Correct Answers
270 Ω, 5%
A strobe, horn, bell, or chime is connected to a(n) _________.
Correct Answers notification appliance circuit
(NFPA 72, Article 3.3.172, Pg.)
A zigzag line in a schematic diagram represents a ___. Correct
Answers resistor
, A(n) __ system is a system used to deny those without proper
credentials access to a specific building, area, or room. Correct
Answers Access control
According to Article 760 of the NEC, the fire alarm conductors
must be protected from mechanical damage when the cable is
installed within ___ of the finished floor. Correct Answers 7
feet
(NFPA 70, Article 760.53(A2), Pg. 649)
According to Massachusetts General Law a Certificate B holder
is a? Correct Answers Journeyman Electrician License
According to Massachusetts General Law a Certificate D holder
is a? Correct Answers System Technician
Alarm notification appliances must be tested: Correct Answers
Annually
(NFPA 72, Article 14.3.1, Pg. 79)
Alarm notification appliances must be tested: Correct Answers
annually
(NFPA 72, Article T14.4.3.2)
An active multiplex system in which signaling device such as
___ are employed to transmit status. Correct Answers
transponder
(NFPA 72, Article 3.3.7, Pg.)
