Second Year Final Review Flashcards
Multiple Choice: Identify the choice that best completes the statement: Which of the following types of detectors is considered an active type detector?
a. Capacitance Sensor c. Break Beam Sensor
b. Audio Sensor d. None of the Above
c. Break Beam Sensor
Define the term dual technology/combination detector.
A device that uses two technologies to reduce false alarms.
When selecting glass break detectors, motion detectors, and door contacts for a security system, is it required that they be made by the panel manufacturer? Why or why not?
No, because many systems can use different manufacturers.
How many sets of contacts are there on a DPDT relay? List them.
Two sets: 2 COM 2 NO 2 NC
Match each of the following types of protection to their definition:
a. Specific Area c. Point of entry
b. Spot d. Perimeter
___ Emphasis placed on specific point which might allow entry or exit from a secure area.
c. Point of entry
Match each of the following types of protection to their definition:
a. Specific Area c. Point of entry
b. Spot d. Perimeter
___ Provides protection of the perimeter area of a building, area or facility.
d. Perimeter
Match each of the following types of protection to their definition:
a. Specific Area c. Point of entry
b. Spot d. Perimeter
___ Protects one specific location.
a. Specific Area
Match the glass types with their associated features:
a. Tempered d. Plexiglas
b. Plate e. Wire
c. Laminated
____ Breaks into large jagged pieces
b. Plate
Match the glass types with their associated features:
a. Tempered d. Plexiglas
b. Plate e. Wire
c. Laminated
____ Shatters into thousands of tiny pieces
a. Tempered
Match the glass types with their associated features:
a. Tempered d. Plexiglas
b. Plate e. Wire
c. Laminated
____ Used as a high security application
e. Wire
Match the glass types with their associated features:
a. Tempered d. Plexiglas
b. Plate e. Wire
c. Laminated
____ Made of plastic and snaps easily
d. Plexiglas
Match the glass types with their associated features:
a. Tempered d. Plexiglas
b. Plate e. Wire
c. Laminated
____ Glass between two thin pieces of plastic film.
c. Laminated
Match the glass types with their associated features:
a. Tempered d. Plexiglas
b. Plate e. Wire
c. Laminated
____ Glass between two thin pieces of plastic film.
c. Laminated
Match each of the following system component to their associated function:
a. Notification appliance
b. Ionization smoke detector
c. Emergency voice/alarm communication
d. Photoelectric smoke detector
___ Radioactive material
b. Ionization smoke detector
Match each of the following system component to their associated function:
a. Notification appliance
b. Ionization smoke detector
c. Emergency voice/alarm communication
d. Photoelectric smoke detector
___ Uses reversed polarity in an alarm state to operate appliances.
a. Notification appliance
Match each of the following system component to their associated function:
a. Notification appliance
b. Ionization smoke detector
c. Emergency voice/alarm communication
d. Photoelectric smoke detector
___ Pre-recorded or live messages
c. Emergency voice/alarm communication
Match each of the following system component to their associated function:
a. Notification appliance
b. Ionization smoke detector
c. Emergency voice/alarm communication
d. Photoelectric smoke detector
___ Light obscuration
d. Photoelectric smoke detector
Name the two most commonly used credential types.
mag strip and proximity
A(n) ___ jack has a shorting bar in it so that when a security system is unplugged the rest of the site doesn’t lost connectivity to the phone line.
RJ31X
When installing a glass break detector to monitor plexiglas, what type of detector should NOT be used?
Glass break - - use shock sensor.
What is the difference between a “duress code” and a “hold up alarm”?
Duress is silent set by alarming system keypad.
Hold up alarm is set by a button under a desk.
Explain where the resistor is placed for an open loop and closed loop door contact
open is parallel
closed in 60L series
An earthquake is a potential cause for what kind of frequency that may cause problems for a security system?
seismic, shock sensor
What makes an access control system so beneficial and effective?
No one needs to man a station to let people in because of a lost key - you don’t have to re-key the lock.
What type of access control card has a memory?
Smart card
What type of access control credential is most difficult to duplicate?
Biometric
What term is used to describe when a biometric reader accepts an invalid biometric input?
False acceptance
What are the terms used to describe the types of magnetic contacts normal state, and which is the most common?
N/O - closed loop - most common
N/C - open loop
Where must a smoke detector be placed in an elevator lobby?
within 21’ of center or door
Explain the difference between a control module and a relay module used in fire alarm systems.
Control - supervised and unsupervised - activates by programming or manually.
Relay has dry contacts to be activated.
When installing a smoke/heat detector on a wall, the top of the device shall be how far from the ceiling and why?
4” - 12” because smoke rolls.
What device is used for two-way communication to the FCC?
fireman’s phone.
Duct smoke detectors are permitted to generate what two types of signals?
alarm and supervisory
What NFPA volume and section covers power limited fire alarm wiring?
NFP70, Section 760
A fire alarm system dialer has what requirements for the communication pathways connected to that dialer.
A minimum of two lines for communication, one dedicated and one for RS31X
Control relays and modules must be installed within ____ from the equipment they are controlling.
3’
In a new construction home, name three areas where a smoke detector is required.
Bedrooms, hallway outside bedroom, one on every level
List three circuits that you are not allowed to combine with power limited fire alarm.
Light and power
Power Class 1
Non-power limited FA
What are the requirements for visual notification devices in a corridor?
15’ from end of corridor and no more than 100’ away.
List the alternate names for the following NFPA volumes: 70 72 99 101
70 - NEC
72 - National Fire Alarm
99 - Health Care Facilities
101 - Life Safety
List examples of the AHJ.
Fire Marshall, Building Inspector
Describe why instructions for installing a roller plunger contact call for it to be installed on the hinge side of a door.
because of warp or play - it protects it from paint.
What are the three most common types of fire alarm circuits and describe their operation.
IDC - carrier signals from input devices.
SLC - signals in data format to panel
NAC - notification devices
Describe the term “fail safe” and explain why it is important for fire control functions.
In the event of a specific type of failure, the systems respond in a way that will cause no or minimal harm to other equipment, the environment or to people. The doors will unlock.
What scales are used to measure sound pressure level and light intensity of audio visual devices?
decibles and candela - note to Justin… this is an essay - do they want more info?
Why does a fire alarm IDC circuit monitor for grounds and opens, but not for short circuits?
It looks for EOL. Short = alarm
What are Fire Command Centers used for and what equipment can be located in that facility?
For firemen’s phones, - control units, security equipment associated with FA.
List the two types of wiring methods for fire alarm circuit survivability.
C1 and M1
What is the difference between public signaling mode and private signaling mode?
Public notifies everyone 15dBa and above ambiant, above 5dBA max sound lasting 60 seconds or more.
Private notifies everyone 10dBa and above ambiant, above 5dBA max sound lasting 60 seconds or more.
Define elevator shunt trip.
Stops elevators before water flows into the hoist ways.
Describe the wiring requirements for Classes A, B, C, D and X fire alarm circuits.
A - must have a redundant path (return) to panel
B - doesn’t have a redundant path - connected tin parallel, EOL used.
C - must have a redundant path, not monitored for integrity (LAN).
D - fail safe - used for safely control functions.
X - must have a redundant path (return) to panel (same as Class A) uses isolation modules between devices - used where extremely high reliability is desired.
