NICET Fire Alarm Systems Level 1 Study Guide
______________ must provide head protection when working in areas where there is a possible danger of head injury from impact, or from falling or flying objects, or from electrical shock and burns.
OSHA 1926.100(b)(1)
*Correct* - The employer
A 20 X 20' ft room with a 20'ft high ceiling requires at a minimum a ___ ceiling mounted strobe
*Correct* - 30 candela
A 24VDC bell draws 0.8 amps of current and it is located 500'ft from the fire alarm control panel. According to the manufacturer, the bell will operate with no more than a 10% voltage drop. Assuming a temperature of 70*F, what is the smallest sized, coated solid copper conductor that shall be used to provide power to the bell?
-Find Chapter 9 table 8 in the NEC, plug ohm values into your equation E = I*R and solve
*Correct* - 12 AWG
A 200 ohm resistor draws 2 amps of current when connected to a power source. What is the voltage applied to the resistor?
*Correct* - 400 volts
A ceiling mounted horn/strobe light was selected to be installed on a 40'ft high ceiling. Which mounting method best matches NFPA 72 requirements?
*Correct* - Suspended horn/strobe light at or below 30'ft
A ceiling shall be treated as a smooth celing if the beams project no more than ____ below the ceiling
*Correct* - 4"inches
A circuit contains 2 resistors connected in series. When 24VDC are applied to the circuit, 2.4 amps of current are drawn. What is the total resistance of the circuit?
-R = E/I
*Correct* - 10 ohms
A circuit contains three resistors in parallel. There values are R1=300, R2=300 and R3=300. What is the total resistance of the circuit?
*Correct* - 100 ohms
A diode's function is?
*Correct* - To only allow current to flow one way A fire alarm system with a pre-signal feature installed on the protected premises shall be permitted if ______________.
NFPA 72 - 23.8.1.2.1
*Correct* - approved by the AHJ
A fixed-temperature, non-restorable spot type heat detector shall be tested ____ from initial installation.
*Correct* - 15 years after
A heat detector with a listed spacing of 50'ft will be installed. What spacing shall be used for a **20'ft** ceiling that is smooth and flat?
*Correct* - 32'ft - because detectors at or above 20'ft shall multiply the listed detector spacing by 0.64. i.e.(50x0.64=32)
A horn was installed to provide notification for a sleeping area. According to NFPA 72, what is the minimum sound level, in dB, allowed above average ambient sound level?
*Correct* - 15dB
A horn will be installed in the hallway of a Holiday Inn (hotel). According to NFPA 72, what is the minimum mounting height above the finished floor?
*Correct* - 90"inches
A parallel circuit has a total circuit current of 2 amps. What is the applied circuit voltage if total resistance is 6 Ohms?
E=IxR
*Correct* - 12 volts
A pressure supervisory signal-initiating device for a dry-pipe sprinkler system shall indicate ______________.
NFPA 72 - 17.16.2.2.2(A)
*Correct* - Both high and low pressure conditions
A Room is 200' long and 150' wide and the 8' high ceiling is smooth and flat. A spot type
heat detector has been selected that is listed for a 50' maximum spacing between detectors. According to NFPA 72 how many detectors will be needed to protect this room? x =
*Correct* - 12
______________ must provide head protection when working in areas where there is a possible danger of head injury from impact, or from falling or flying objects, or from electrical shock and burns.
OSHA 1926.100(b)(1)
*Correct* - The employer
A 20 X 20' ft room with a 20'ft high ceiling requires at a minimum a ___ ceiling mounted strobe
*Correct* - 30 candela
A 24VDC bell draws 0.8 amps of current and it is located 500'ft from the fire alarm control panel. According to the manufacturer, the bell will operate with no more than a 10% voltage drop. Assuming a temperature of 70*F, what is the smallest sized, coated solid copper conductor that shall be used to provide power to the bell?
-Find Chapter 9 table 8 in the NEC, plug ohm values into your equation E = I*R and solve
*Correct* - 12 AWG
A 200 ohm resistor draws 2 amps of current when connected to a power source. What is the voltage applied to the resistor?
*Correct* - 400 volts
A ceiling mounted horn/strobe light was selected to be installed on a 40'ft high ceiling. Which mounting method best matches NFPA 72 requirements?
*Correct* - Suspended horn/strobe light at or below 30'ft
A ceiling shall be treated as a smooth celing if the beams project no more than ____ below the ceiling
*Correct* - 4"inches
A circuit contains 2 resistors connected in series. When 24VDC are applied to the circuit, 2.4 amps of current are drawn. What is the total resistance of the circuit?
-R = E/I
*Correct* - 10 ohms
A circuit contains three resistors in parallel. There values are R1=300, R2=300 and R3=300. What is the total resistance of the circuit?
*Correct* - 100 ohms
A diode's function is?
*Correct* - To only allow current to flow one way A fire alarm system with a pre-signal feature installed on the protected premises shall be permitted if ______________.
NFPA 72 - 23.8.1.2.1
*Correct* - approved by the AHJ
A fixed-temperature, non-restorable spot type heat detector shall be tested ____ from initial installation.
*Correct* - 15 years after
A heat detector with a listed spacing of 50'ft will be installed. What spacing shall be used for a **20'ft** ceiling that is smooth and flat?
*Correct* - 32'ft - because detectors at or above 20'ft shall multiply the listed detector spacing by 0.64. i.e.(50x0.64=32)
A horn was installed to provide notification for a sleeping area. According to NFPA 72, what is the minimum sound level, in dB, allowed above average ambient sound level?
*Correct* - 15dB
A horn will be installed in the hallway of a Holiday Inn (hotel). According to NFPA 72, what is the minimum mounting height above the finished floor?
*Correct* - 90"inches
A parallel circuit has a total circuit current of 2 amps. What is the applied circuit voltage if total resistance is 6 Ohms?
E=IxR
*Correct* - 12 volts
A pressure supervisory signal-initiating device for a dry-pipe sprinkler system shall indicate ______________.
NFPA 72 - 17.16.2.2.2(A)
*Correct* - Both high and low pressure conditions
A Room is 200' long and 150' wide and the 8' high ceiling is smooth and flat. A spot type
heat detector has been selected that is listed for a 50' maximum spacing between detectors. According to NFPA 72 how many detectors will be needed to protect this room? x =
*Correct* - 12
