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FFHB - Chapter 12

True/False
Indicate whether the sentence or statement is true or false.
 

 1. 

Manual fire alarm systems suffer from three typical problems: people must be present, many do not summon help, and when activated they are difficult to reset.
 

 2. 

A serious consideration is where the fire department gets its water supply to determine if water is being robbed from the sprinkler system.
 

 3. 

The fixed temperature heat detector is usually electrically operated with a bimetal strip that bends to touch a contact point.
 

 4. 

Deluge sprinkler systems are designed to protect areas that may have a fast spreading fire engulfing the entire area.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 5. 

____ detectors use a radioactive element that emits ions into the chamber.
a.
Ionization
d.
Light-scattering
b.
Photoelectric
e.
Fixed temperature
c.
Light obscuration
 

 6. 

In what type of sprinkler system are all the heads already open and, when activated, water flows to all heads in the system?
a.
wet pipe systems
d.
residential systems
b.
dry pipe systems
e.
accelerator systems
c.
deluge systems
 

 7. 

A(n) ____ is a device to speed the operation of the dry pipe valve by detecting the decrease in air pressure.
a.
accelerator
d.
A and C
b.
post indicator valve
e.
none of the above
c.
exhauster
 

 8. 

What type of valve in a control valve is mounted on a post case with a small window indicating either “OPEN” or “SHUT”?
a.
a check valve
d.
an alarm valve
b.
an outside stem and yoke valve
e.
a sprinkler valve
c.
a post indicator valve
 

 9. 

The three main control devices for sprinkler and standpipe systems include all of the following except ____.
a.
outside stem and yoke valve
c.
non indicating ball valve
b.
post indicator valve
d.
wall indicator valve
 

 10. 

The most common temperature at which a sprinkler opens is ____.
a.
135°F
c.
325°F
b.
150°F
d.
165°F
 



 
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