Prep Test

1.	The three elements of the fire triangle necessary for a fire to burn include all the following except Fuel Oxygen Heat Nitrogen
2.	Electrical fires are classified as what type of fire and use what extinguishing methods? Class B; CO2 or soda acid Class B; CO2 or FM-200 Class C; CO2 or FM-200 Class A; water or soda acid
3.	A prolonged drop in voltage describes what electrical anomaly? Brownout Blackout Sag Fault
4.	What type of cabling should be used below raised floors and above drop ceilings? CAT-5 Plenum PVC Water-resistant
5.	In order to deter casual trespassers, fencing should be a minimum height of 1–3 ft 3–4 ft 6–7 ft 8 ft or greater
6.	Three types of intrusion detection systems (IDS) used for physical security include photoelectric sensors, dry contact switches, and which of the following? Motion detectors Anomaly-based Host-based Network-based
7.	A water sprinkler system in which no water is initially present in the pipes and upon activation delivers a large volume of water describes what type of system? Wet pipe Dry pipe Deluge Preaction
8.	Portable CO2 fire extinguishers are classified as what type of extinguishing system? Gas discharge systems Water sprinkler systems Deluge systems Preaction systems
9.	Which of the following extinguishing agents fights fires by separating the elements of the fire triangle? Water Soda acid CO2 FM-200
10.	Production of Halon has been banned for what reason? It is toxic at temperatures above 900° F. It is an ozone-depleting substance. It is ineffective. It is harmful if inhaled.

Answers

1.	D. Nitrogen.The fire triangle consists of fuel, oxygen, and heat. Review “Physical SecurityThreats.”
2.	C. Class C; CO2 or FM-200. Class B fires consist of burnable fuels and are extinguished by using CO2, soda acid, or FM-200. Class A fires consist of common combustible materials. Review “Physical Security Threats.”
3.	A. Brownout. A blackout is a total loss of power, a sag is a short drop in voltage, and a fault is a momentary loss of power. Review “Physical Security Threats.”
4.	B. Plenum. CAT-5 cabling can be either plenum or PVC-coated. PVC cabling releases toxic vapors when burned. Both PVC and plenum coatings are water resistant. Review “Designing a secure facility.”
5.	B. 3–4 ft. Fencing of 1–3 ft might deter a toddler or a duck! 6–7 ft is too high to climb easily. Eight-foot high or greater fencing (with three-strand barbed wire) will deter a more determined intruder. Review “Fencing.”
6.	A. Motion detectors. Anomaly-based, host-based, and network-based systems are types of intrusion detection systems (IDS) used for computer systems and networks. Review “Intrusion detection.”
7.	C. Deluge. A wet pipe system always has water present in the pipes. A dry pipe system is similar to a deluge system but doesn’t deliver a large volume of water. A preaction system combines elements of both wet and dry pipe systems. Review “Suppression systems.”
8.	A. Gas discharge systems. Water sprinkler systems are fixed systems that discharge water. Deluge and preaction systems are types of water sprinkler systems. Review “Suppression systems.”
9.	D. FM-200. Water fights fires by removing the heat element. Soda acid fights fires by suppressing the fuel element. CO2 fights fires by removing the oxygen element. Review “Suppression systems.”
10.	B. It is an ozone-depleting substance. Halon does release toxic chemicals at temperatures above 900° F and is harmful if inhaled in concentrations greater than 10 percent, but these are not the reasons that its production was banned. Halon is one of the most effective fire-extinguishing agents currently available. Review “Suppression systems.”