67 EXAM STUDY GUIDE 2026/2027
ACCURATE QUESTIONS WITH
CORRECT DETAILED SOLUTIONS ||
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1. Alternating Current (AC) always flows one way then the other? - ANSWER
✔ True. AC always flows one way then the other.
2. The frequency of AC is measured in? - ANSWER ✔ Measured in hertz Hz
3. What refers to a voltage can convey information? - ANSWER ✔ Electrical
Signal
4. What refers to the maximum voltage that can be reached by a signal? -
ANSWER ✔ Amplitude
5. Electricity may flow only when? - ANSWER ✔ There has to be a for it to
return making a complete circuit
6. What is the return path for electrical power to flow back to the service
panel? - ANSWER ✔ Neutral
7. The live wire is always ungrounded? - ANSWER ✔ True. They are very
hot caring electrical power
8. A ground electrode conductor originates at the neutral or equipment ground
bus of the service panel? - ANSWER ✔ True
,9. A ground electrode should not be made in contact with the earth? -
ANSWER ✔ False. sound be on contact with the earth
10.Compare Watts with Voltage - ANSWER ✔ Watts are the measure of
power. Voltage is the measure of potential energy.
11.You should size conductors no less ______ of the continuous loads plus
_________ of the non-continuous loads,. - ANSWER ✔ 125% / 100%
12.Conductor sizes are often expressed in? - ANSWER ✔ American Wire
Gage (AWG)
13.What refers to the allowable current-carrying capacity of a conductor? -
ANSWER ✔ Ampacity
14.The insulation type determines the areas the writers can and cannot used? -
ANSWER ✔ True
15.RHH wires use rubber insulation that is high heat resistant and is good in? -
ANSWER ✔ Is only good in dry locations.
16.Raceways or bushing that enter a building should be? - ANSWER ✔
Sloped upward from the outside or a service loop made
17.Whenever practicable, a distance of ____ feet or more should be maintained
between communications wires and lighting conductors. - ANSWER ✔ 6
feet
18.Only plastic splice cases may be used as enclosures for terminating
telephone cables. - ANSWER ✔ False
19.Cables and conductors of Class 3 circuits should not be placed in. a cable
compartment with conductors of non - power -limited fire alarm circuits. -
ANSWER ✔ True
20.The bonding conductors for use with the primary protector should never be
smaller than _______ AWG. - ANSWER ✔ 14 AWG
,21.Secondary protectors on those circuits exposed to possible accidental contact
with electric light conductors _____ Volts to ground should be used with
primary protectors. - ANSWER ✔ 300+ Volts
22.Whenever there is lightning exposure, the interbuilding circuit must be
protected? - ANSWER ✔ By a listed protector on each end
23.An area with an average of _____ or less thunderstorm days a year plus an
earth resistivity of fewer than ______ ohmmeters is not considered to have
lightning exposure. - ANSWER ✔ 5/100 ohmmeters
24.The fire alarm circuit disconnect should be designed in such a way that it
can be secured in the "on" position. - ANSWER ✔ True
25.Concerning fire alarm systems, the overcurrent protection should not exceed
_________ amperes for 18 AWG conductors. - ANSWER ✔ 7 amperes
26.The location of the branch-circuit overcurrent protective device for
supplying fire alarm equipments must be permanently identified at the fire
alarm control unit. - ANSWER ✔ True
27.The fire alarm circuit disconnecting means should have _______
identification. - ANSWER ✔ Red
28.The power source off non- power limited fire alarm circuits should have an
output voltage no larger than _______ volts nominal - ANSWER ✔ 600
volts
29.The branch circuits for supplying fire alarm equipment is normally allowed
to supply other loads? - ANSWER ✔ False
30.Power -supply and fire alarm circuits conductors may stay in the same cable
as long as? - ANSWER ✔ They are connected to the same equipment.
31.Only metallic terminal boxes may be used as enclosures for splicing
telephone cables. - ANSWER ✔ False
, 32.You can only use copper conductors for fire alarm systems. - ANSWER ✔
True
33.The proper size of conductors in a multi conductors cable should be at least.
- ANSWER ✔ 26 AWG
34.The proper size of single conductors should be at least? - ANSWER ✔ 18
AWG
35.A cable that is low smoke-producing should exhibit a max peak optical
density of no more than? - ANSWER ✔ 0.5
36.Direct -buried cables that are emerging from the ground must be protected
by enclosures or other means. - ANSWER ✔ True
37.Primary electrical protections are necessary on aerial network -powered
broadband communications conductors? - ANSWER ✔ That are not
grounded or interrupted
38.A cable that is fire resistant should exhibit a max flame spread distance of no
more than _____ feet. - ANSWER ✔ 5 feet
39.Primary electrical protections are necessary on underground network -
powered broadband communications conductors? - ANSWER ✔ That are
not grounded or interrupted.
40.On those networks -powered broadband communications conductors that are
not exposed to lightning you do not need to provide primary electrical
protection. - ANSWER ✔ False
41.fuseluse -type primary protectors are never allowed. - ANSWER ✔ False
42.Hot water pipes may be used as grounding electrodes for the protectors. -
ANSWER ✔ False
43.A bonding jumper at least _____ AWG copper in size should be used to
connect the network - powered broadband communications system