Physical And Environmental Security

Question 0

Replacement for Halon

Answer 0

FM-200 (best)
NAF-S-III
CEA-410
Fe-13
Inergen
Argon
Aragonite

Question 1

Fire classes

Answer 1

A - common combustibles (A ..)
B - liquid (in “Bottles”)
C - electrical (“C”omputer)
D - combustible metals (“D”

Question 2

Wet pipe

Answer 2

Always contain water in the pipes

Question 3

Dry pipe

Answer 3

Water in holding tank before released into pipes in case of fire

Question 4

Preaction

Answer 4

Same as dry pipe but with further delay on the sprinklers (thermal fusible link has to melt first)

Question 5

Deluge

Answer 5

Large water volumes in short amount in time - bad for data centers etc

Question 6

CCTV: wide angle lense

Answer 6

short focal length

Question 7

CCTV: telephoto lens

Answer 7

long focal length

Question 8

CCTV: depth of field

Answer 8

increases when lens opening size decreases, subject distance increases or focal length of the lense decreases

Question 9

Warded Lock

Answer 9

simple, less parts than a tumbler lock

Question 10

how do fire suppressing agents work?

Answer 10

water: reduces temperature
CO2: displaces oxygen
other Gas (e.g. Halon) disrupts chemical process
soda acid: reduces the available fuel