Blue Book Chapter 3

Question 1

How many splices are allowed in a run of coaxial video surveillance cabling
what is industry standard

Answer 1

5 max

industry standard is two

Question 2

How do you eliminate lighting bloom

Answer 2

reposition camera or add more light in a different direction to even out lighting

Question 3

What is the purpose of the camera lens

Answer 3

reflect light and refocus it into the camera sensor

Question 4

what is a disadvantage of using a tinted dome

Answer 4

less light is let in

Question 5

List some common sources of EMI

Answer 5

Florescent lights
motors
antennas
cable

Question 6

PTZ

Answer 6

Pan-Tilt-Zoom Camera

Question 7

What are two main methods for controlling PTZ cameras

Answer 7

digital and hardwire

keyboard and joystick

Question 8

what is the most common voltage for full body cameras

Answer 8

24 VAC

Question 9

what is the unit of measure for light sensitivity

Answer 9

lux or foot candle

Question 10

What is the purpose of surge protection

Answer 10

Provide supplemental protection to CCTV equipment

Question 11

What connector is industry standard for cctv Coax

Answer 11

BNC - Bayonet Neill–Concelman

Question 12

ALC

Answer 12

automatic lens control - allows the camera to control auto iris lens

Question 13

the five factors that determine the amount of recording time you will get out of your DVR/NVR are

Answer 13

Image record rate
picture size
image quality
scene activity
storage space

Question 14

What is the most common type of BNC connector

Answer 14

compression

Question 15

What are 4 types of BNC connectors

Answer 15

twist on
two piece crimp
three piece crimp
compression

Question 16

what is the advantage of using a tinted dome

Answer 16

disguise the direction a camera is pointing

Question 17

when is it safe to look down a fiber optic cable

Answer 17

when it is powered down or not connected to a lazer

Question 18

What type of camera is more sensitive in low light condition

Answer 18

Black and white - more light is required to produce an accurate color image

Question 19

what is the difference between general coverage and detail coverage

Answer 19

general covers a wide area while detail has a smaller coverage but more detail

Question 20

when selecting a transformer, be sure that it has sufficient ___________ to power all devices

Answer 20

wattage: current and voltage

Question 21

BLC

Answer 21

Back Light Compensation - dim light behind target increase light of target

Question 22

List three alternate methods for video transmission

Answer 22

twisted (STP, UTP)
fiber
wireless

Question 23

what are the distance limitations for passive baluns

Answer 23

under 1000 feet

Question 24

What are advantages of using fiber optic cable

Answer 24

smaller and lighter
immune to lightning, RFI, EMI
can be in same cable tray as High voltage
no ground loop issues - electrically isolated
most secure

Question 25

what are seven common camera types

Answer 25

Full body cam
Bullet Cam
Dome Cam
Board Cam
Covert Cam

Question 26

what is the purpose of camera housing/domes

Answer 26

protect cameras from: tampering, the environment, and damage

hide the direction the camera is pointing

Question 27

list the three common sixes and distance limitations for coax cable

Answer 27

RG-59: 500 FT
RG-6: 750 FT
RG-11: 1,500 FT

Question 28

EMI

Answer 28

electromagnetic interferance

Question 29

1 candle foot equals _____ lux

Answer 29

10 lux

Question 30

AGC

Answer 30

automatic gain control - increase image sensitivity in low light situations

Question 31

how do day/night cameras work

Answer 31

switch to blk/white when less than favorable light conditions occur