Blue Book Chapter 3 Questions

Question 1

What type of camera is more sensitive in low light conditions: color or black and white? Why?

Answer 1

Back and white because it produces images in lower light.

Question 2

How do day/night cameras work?

Answer 2

Produces image in color under favorable lighting conditions and switches over to black and white when lighting gets too low for color.

Question 3

What is the unit of measure for light sensitivity?

Answer 3

LUX

Question 4

Define the following common camera feature terms?

a. ALC
b. AGC
c. BLC

Answer 4

a. ALC - controls auto iris lenses
b. AGC - increases sensitivity of image in lower light situations
c. BLC - adjusts bright light by darkening

Question 5

What is the most common voltage for full body camera?

Answer 5

24 VAC

Question 6

What are the seven common camera types?

Answer 6

full body, bullet, dome, board, vandal resistant, covert, outdoor

Question 7

How do you eliminate lighting bloom?

Answer 7

reposition camera, tinting it

Question 8

What is the purpose of the camera lens?

Answer 8

To focus the camera

Question 9

What is the difference between General Coverage and Detail Coverage?

Answer 9

General: wider view
Detail: narrower view

Question 10

List the three common sizes and distance limitations for coax cable.

Answer 10

Rg 59, Rg 6, Rg 11

Question 11

What connector is the industry standard for CCTV coax?

Answer 11

BNC

Question 12

What are the four types oof BNC connectors?

Answer 12

twist on, two-piece crimp, three-piece crimp, compression

Question 13

How many splices are allowed in a run of coaxial video surveillance cabling?

Answer 13

five

Question 14

List some common cources of MIE

Answer 14

Flourescent lights, motors, antennas

Question 15

When selecting a transformer, ensure it has sufficient ____ to power all devices.

Answer 15

coattage

Question 16

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

Answer 16

image record rate, picture size, image quality, scene activity, storage space

Question 17

What is the purpose of camera housing/domes?

Answer 17

protection from the elements, tampering and damage

Question 18

What is an advantage of using a tinted dome?

Answer 18

more covert

Question 19

What is a disadvantage of using a tinted dome

Answer 19

1 f-stop (flux), light loss,

Question 20

What are two main methods for controlling PTX cameras?

Answer 20

tilt, zoom

Question 21

List three alternate methods of video transmission.

Answer 21

hardware controls, digital controls, coax control

Question 22

What are the distant imitations for passive baluns?

Answer 22

1000’

Question 23

When is it safe to look down a fiber optic cable?

Answer 23

NEVER

Question 24

What is the purpose of surge protection?

Answer 24

It provides protection from spikes that come over power, video, and data connections.

Question 25

What are the advantages of using fiber optic cabling?

Answer 25

Immune to EMI and Rf and more secure