TradeExamPro › Fire & Security
30 free practice questions for this exam, each with the reason for the answer and where to look it up.
10 questions, graded as you go, with the reason for every answer. No sign-up.
| Exam | Fire alarm technician / RME state license |
|---|---|
| Who runs it | State fire marshals |
| Where | United States (varies by state) |
Question count, time limit and pass mark differ by where you take it. Check the official candidate bulletin from the organisation that runs your exam.
A tamper switch on a sprinkler control valve operates because someone has partly closed the valve. What signal should the control unit show?
A. Supervisory
A valve that is off-normal is a supervisory condition: the sprinkler system may not work, but there is no fire. It is not a trouble signal, because the alarm system's own wiring and power are fine.
Reference: NFPA 72 topic: supervisory signal initiating devices
A 24 V circuit has a total resistance of 1,200 ohms. How much current flows?
B. 20 mA
I = E / R = 24 V / 1,200 ohms = 0.020 A = 20 mA. Dividing the other way (1,200 / 24) gives 50, which is not a current, and the other choices are decimal-point slips.
Reference: Basic electricity: Ohm's law
A rate-of-rise heat detector responds when
C. The temperature climbs faster than a set rate
Rate-of-rise detectors react to a rapid temperature increase whatever the starting temperature. A detector that operates at one set temperature is a fixed-temperature type; many units combine both.
Reference: NFPA 72 topic: heat-sensing fire detectors
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