Exam Questions and CORRECT Answers
Four types of fencing - CORRECT ANSWER • Chain-link (Most commonly used for security
delay of 3 to 5 seconds)
• Barbed wire
• Concertina
• Barbed tape
What are the Specifications regarding use of chain-link fences? - CORRECT ANSWER 7 foot
tall material excluding top guard
9 gauge or heavier
Mesh openings larger than 2" per side
twisted and barbed salvage at top and bottom
Securely fastened to rigid metal or reinforced concrete posts
Posts - 10 'apart or less in ground 24
In 2 inches of hard ground
On soft ground must reach below surface deep enough to compensate for shifting soil or sand
Standard barbed wire is: - CORRECT ANSWER Twisted, double-strand, 12 gauge wire, with
4 point barbs
Firmly attached to posts not more than 6' apart
Manhole cover can be how large? And other openings? - CORRECT ANSWER 10 inches or
more and other openings have a cross-sectional area greater than 96 square inches.
What are the Clear Zones for inner and outer perimeter from a building? - CORRECT
ANSWER 20 feet outside the perimeter barrier
50 feet between the perimeter barrier and structures
,How far should Signs be on the perimeter? - CORRECT ANSWER 100-feet intervals
(Minimum) along the perimeter and Legible from 50 feet
What are the types of Mechanical Locks? - CORRECT ANSWER -Warded Lock (Worst lock
-Lever Locks (Safety deposit)
-Pin Tumbler Lock (Used in commercial)
-Interlocking Pins
-Multiple Axes Tumblers
-Wafer Tumbler
What is the minimum height a Window should a be off the ground? As well as trees, poles and
adjoining building away from if the window is more then 96 inches. - CORRECT
ANSWER windows less than 18 feet from the ground or less than 14 feet from trees, poles or
adjoining buildings should be protected if they are larger than 96 square inches in area
What are the Gaseous discharge lamps and what and what are the strike time? - CORRECT
ANSWER Mercury vapor lamps (soft blue light) and sodium vapor lamps (soft yellow light).
2-5 minutes to light when cold and longer periods to re-light when hot.
The maximum number of monitors that can be watched is? - CORRECT ANSWER less than
10
What is identified as the length of time an image is programmed to remain displayed on a
monitor connected to a Sequential Switcher? - CORRECT ANSWER Dwell time
What are the three basic Parts of an Alarm System(A.C.S.)? - CORRECT
ANSWER Annunciator, circuit, sensor
What are some types of Alarm Protection? - CORRECT ANSWER Area, object, perimeter
,Under what conditions should Sensors should initiate alarms? - CORRECT ANSWER Event
Occurrs
Loss of power
Open, short or ground fault
Failure of sensor
Device Tampering
What are the basic principles of operation of
intrusion detection systems? - CORRECT ANSWER Breaking an electrical circuit
Interrupt a light beam
Detect sound
Detect vibration
Detect a change in electrostatic field
What type of alarm is least effective? - CORRECT ANSWER Electro-mechanical
What are the types of volumetric sensors? - CORRECT ANSWER Capacitance
Acoustic
Microwave
Ultrasonic
Passive Infrared
Photo Electric
What type of sensor picks up light air turbulence, vibration and motion outside the room is
present? - CORRECT ANSWER Microwave
What sensor detects objects that are either warmer or cooler than background temperature and
uses Light? - CORRECT ANSWER PIR
, What sensor Interrupts light beams, Used indoors and outdoors and Uses mirrors to reflect light?
- CORRECT ANSWER Photo electric
Basis Communication concerning security systems are? - CORRECT ANSWER Integrity
message
Timeliness of transmission - NFPA 101 needs to responds within 10 seconds
Message Security
What are the types of communications security? - CORRECT ANSWER Line Protection
Line Supervision
End of the Line Sensor
What type of communication security uses an end-of-line resistor installed to introduce a
constant, measurable electrical current, and uses an open circuit (broken connection), or a ground
or a wire-to-wire short? - CORRECT ANSWER Line Supervision
What are some features in using Fiber Optical? - CORRECT ANSWER No electromagnetic
interference
Not regulated
Carry heaver load
Smaller More flexible
Can carry voice, video and digital transmission
A device used with an electric discharge lamp to obtain the necessary voltage and current to start
and operate the lamp is called? - CORRECT ANSWER Ballast
One Foot-candle is equal what in LUX? - CORRECT ANSWER 10.76 Lux
Parking lots should be illuminated so one can identify a human face at how