2026 NICET LEVEL 1 CORRECT SCRIPTED
QUESTIONS AND ANSWERS RATED A+
✔✔Which circuit class is a fail-safe circuit? - ✔✔Class D
✔✔A circuit class is not monitored for integrity? - ✔✔Class E
✔✔How is a class B circuit different from a class A circuit? - ✔✔Class B does Not have
a redundant path; Operational capability stops at a single open.
✔✔Monitoring for integrity shall not be required for the interconnection between
enclosure containing control equipment located within - ✔✔20 feet
✔✔I or Amperes = - ✔✔E/R
✔✔R or Resistance - ✔✔E/I
✔✔E or Voltage - ✔✔I x R
✔✔K for Copper @ 167 degrees F - ✔✔12.9
✔✔K for Aluminum @ 167 degrees F - ✔✔21.2
✔✔Voltage drop formula for single-phase circuits - ✔✔Vd = (2K x L x I) / Cm
✔✔Voltage drop formula for three-phase circuits - ✔✔Vd = (1.73K x L x I) / Cm
✔✔Total Current for series circuit - ✔✔I(t) = I(1) = I(2) = I(3), etc.
✔✔Total voltage for series circuit - ✔✔E(t) = E(1) + E(2) + E(3), etc.
✔✔Total resistance for series circuit - ✔✔R(t) = R(1) + R(2) + R(3), etc.
, ✔✔Total Current for parallel circuit - ✔✔I(t) = I(1) + I(2) + I(3), etc.
✔✔Total voltage for parallel circuit - ✔✔E(t) = E(1) = E(2) = E(3), etc.
✔✔Total resistance for parallel - ✔✔R(t) = E(t) / I(t)
✔✔Total resistance when current and voltage unknown - ✔✔1/R(t) = 1/R(1) + 1/R(2) +
1/R(3), etc.
✔✔Total resistance when of number of equal resistors in parallel - ✔✔R(t) = Resistance
of 1 resistor /
Number of resistors in circuit
✔✔Total resistance of only 2 resistors in parallel - ✔✔R(t) = R(1) x R(2) /
R(1) + R(2)
✔✔A device suitable for connection to a circuit that has a sensor that responds to a
physical stimulus such as gas, heat, or smoke. - ✔✔Detector
✔✔Ceilings that have solid structural or solid nonstructural members projecting down
from the ceiling surface more than 4 in. and spaced more than 36 in apart, center to
center. - ✔✔Beam Construction
✔✔Actuation of alarm notification appliances or EVC's, emergency control function
interface devices, and annunciation at the protected premises shall occur within - ✔✔10
seconds
✔✔indication and restoring of self-restoring supervisory device shall be automatically
indicated within - ✔✔90 seconds
✔✔Maximum air sample transport time from the farthest sampling port to the detector
shall not exceed - ✔✔120 seconds
✔✔Wire splices angle or are you polls are made, the distance between each raceway
entry inside the box or condo and body and the opposite wall of the box or kind a wood-
burning or not be less than - ✔✔6 times the trade size of the largest raceway in a row.
✔✔Vertical runs of a metal wireway shall be securely supported at intervals not
exceeding - ✔✔15 feet
✔✔Metal wireways shall be supportive wire run horizontally at each end and at intervals
not to exceed - ✔✔5 feet
QUESTIONS AND ANSWERS RATED A+
✔✔Which circuit class is a fail-safe circuit? - ✔✔Class D
✔✔A circuit class is not monitored for integrity? - ✔✔Class E
✔✔How is a class B circuit different from a class A circuit? - ✔✔Class B does Not have
a redundant path; Operational capability stops at a single open.
✔✔Monitoring for integrity shall not be required for the interconnection between
enclosure containing control equipment located within - ✔✔20 feet
✔✔I or Amperes = - ✔✔E/R
✔✔R or Resistance - ✔✔E/I
✔✔E or Voltage - ✔✔I x R
✔✔K for Copper @ 167 degrees F - ✔✔12.9
✔✔K for Aluminum @ 167 degrees F - ✔✔21.2
✔✔Voltage drop formula for single-phase circuits - ✔✔Vd = (2K x L x I) / Cm
✔✔Voltage drop formula for three-phase circuits - ✔✔Vd = (1.73K x L x I) / Cm
✔✔Total Current for series circuit - ✔✔I(t) = I(1) = I(2) = I(3), etc.
✔✔Total voltage for series circuit - ✔✔E(t) = E(1) + E(2) + E(3), etc.
✔✔Total resistance for series circuit - ✔✔R(t) = R(1) + R(2) + R(3), etc.
, ✔✔Total Current for parallel circuit - ✔✔I(t) = I(1) + I(2) + I(3), etc.
✔✔Total voltage for parallel circuit - ✔✔E(t) = E(1) = E(2) = E(3), etc.
✔✔Total resistance for parallel - ✔✔R(t) = E(t) / I(t)
✔✔Total resistance when current and voltage unknown - ✔✔1/R(t) = 1/R(1) + 1/R(2) +
1/R(3), etc.
✔✔Total resistance when of number of equal resistors in parallel - ✔✔R(t) = Resistance
of 1 resistor /
Number of resistors in circuit
✔✔Total resistance of only 2 resistors in parallel - ✔✔R(t) = R(1) x R(2) /
R(1) + R(2)
✔✔A device suitable for connection to a circuit that has a sensor that responds to a
physical stimulus such as gas, heat, or smoke. - ✔✔Detector
✔✔Ceilings that have solid structural or solid nonstructural members projecting down
from the ceiling surface more than 4 in. and spaced more than 36 in apart, center to
center. - ✔✔Beam Construction
✔✔Actuation of alarm notification appliances or EVC's, emergency control function
interface devices, and annunciation at the protected premises shall occur within - ✔✔10
seconds
✔✔indication and restoring of self-restoring supervisory device shall be automatically
indicated within - ✔✔90 seconds
✔✔Maximum air sample transport time from the farthest sampling port to the detector
shall not exceed - ✔✔120 seconds
✔✔Wire splices angle or are you polls are made, the distance between each raceway
entry inside the box or condo and body and the opposite wall of the box or kind a wood-
burning or not be less than - ✔✔6 times the trade size of the largest raceway in a row.
✔✔Vertical runs of a metal wireway shall be securely supported at intervals not
exceeding - ✔✔15 feet
✔✔Metal wireways shall be supportive wire run horizontally at each end and at intervals
not to exceed - ✔✔5 feet
