Fire Alarm Systems, Level II

Question 1

What are the three sides of the fire triangle?

Select one:

a. Flames, radiant energy, smoke
b. Heat, smoke, flames
c. Oxygen, fuel, ignition source
d. Oxygen, fuel, radiant energy

Answer 1

c. Oxygen, fuel, ignition source

Question 2

Which of the following is not a product of combustion?

Select one:

a. Heat
b. Pyrolysis
c. Radiant energy
d. Smoke

Answer 2

b. Pyrolysis

Question 3

Heat is produced when materials?react to form simpler compounds.

Select one:

a. endothermically
b. exothermically
c. intrathermically
d. introthermically

Answer 3

b. exothermically

Question 4

Smoke particles are usually about what size?

Select one:

a. Between 0.01 microns to about 5,000 microns
b. Between 0.1 microns to about 4,000 microns
c. Between 1 micron to about 4,000 microns
d. Between 1 micron to about 5,000 microns

Answer 4

a. Between 0.01 microns to about 5,000 microns

Question 5

Smoke detectors undergoing UL testing must actuate between?per foot obscuration.


Select one:

a. 0.4–4.4%
b. 0.4–5.5%
c. 0.5–3.5%
d. 0.5–4.4%

Answer 5

d. 0.5–4.4%

Question 6

A condition where a burning fuel produces smoke without flames is known as?.

Select one:

a. deflagration
b. oxidation
c. pyrolysis
d. radiation

Answer 6

c. pyrolysis

Question 7

During the UL tests, system-powered smoke detectors must respond to a polystyrene fire within?.

Select one:

a. 1 minute
b. 2 minutes
c. 3 minutes
d. 4 minutes

Answer 7

b. 2 minutes

Question 8

What kind of detector is most appropriate for an elevator lobby in an apartment building?

Select one:

a. Air-sampling smoke detector
b. Heat detector
c. Radiant energy-sensing fire detector
d. Spot-type smoke detector

Answer 8

d. Spot-type smoke detector

Question 9

What kind of detector is most appropriate for an unenclosed, unheated parking garage?

Select one:

a. Air-sampling smoke detector
b. Heat detector
c. Radiant energy sensing fire detector
d. Spot-type smoke detector

Answer 9

b. Heat detector

Question 10

Rooms or spaces with high ceilings may be subject to what condition during a fire?

Select one:

a. Increased sensitivity
b. Layering
c. Smoke condensation
d. Stratification

Answer 10

d. Stratification

Question 11

The most appropriate type of detection for a computer room is?.

Select one:

a. air-sampling smoke detection
b. heat detection
c. radiant energy-sensing fire detection
d. any of the above

Answer 11

a. air-sampling smoke detection