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1. The nominal spacing of spot type smoke detectors is ? .
a.12'
b.15'
c.21'
d.30' - Correct Answer: 30'
2. A circuit that has conductors returning to the control unit from the last device
is best described as a ? circuit.
a.Class 3
b.Class A
c.Class B
d.Style 4 - Correct Answer: CLASS A
3. The sum of all voltage in a series loop circuit is the ? .
a.product over the sum
b.reciprocal of the sum of the voltages
,c.same value throughout the circuit
d.sum of the individual voltages - Correct Answer: d.
sum of the individual voltages
4. Smoke detectors must be installed within ? of the centerline of elevator doors
they control.
a.12'
b.15'
c.21'
d.30' - Correct Answer: 21'
5. According to Article 760 of the NEC, fire alarm conductors must be protected
from mechanical damage when the cable is installed within ? of the finished floor.
a.7'
b.7.5'
c.8'
d.10' - Correct Answer: a. 7'
6. Heat detector spacing on joisted ceilings must be reduced by ? perpendicular
to the joists.
a.25%
b.33%
c.50%
d.66% - Correct Answer: 50%
,7. A 30-candela strobe covers a maximum area of ? when centered on a wall.
a.20' x 20'
b.25' x 25'
c.28' x 28'
d.40' x 40' - Correct Answer: 28' x 28'
8. An emergency voice/alarm communications system must have a minimum
standby capacity of 48 hours. t/f - Correct Answer: false
9. Smoke detection is most appropriate for which of the following occupancy
types?
a.Business occupancies
b.Hotels
c.Medical clinic
d.All of the above - Correct Answer: All of the above
10. A photoelectric smoke detector is best at detecting ? fires.
a.fast-developing
b.flaming
c.incipient
d.smoldering - Correct Answer: smoldering
, 11. Graphic annunciators should be used in ? .
a.a large industrial complex
b.place of a fire alarm panel
c.small residential buildings
d.all of the above - Correct Answer: a large industrial complex
12. In order to become listed, smoke detectors must respond to obscuration levels
between ? .
a.0.5 and 3% per foot
b.0.5 and 4% per foot
c.0 and 2% per foot
d.1 and 3% per foot - Correct Answer: 0.5 and 4% per foot
13. Early warning of fire is best provided by using ? detectors.
a.heat
b.manual
c.smoke
d.waterflow - Correct Answer: smoke
14. An average ambient sound pressure level of 60 dBA with a maximum sound
pressure level of 63 dBA would require a signal sound pressure level of ? for public
mode signaling.
a.65 dBA
b.68 dBA