Lens 2

Lens 2

University

17 Qs

quiz-placeholder

Similar activities

Ethical Decision making

Ethical Decision making

University

16 Qs

The Flash

The Flash

KG - University

18 Qs

OCAP 07042022

OCAP 07042022

University

20 Qs

Lenses and Perspective

Lenses and Perspective

9th Grade - University

15 Qs

Chapter 6 continued Sensation and Perception

Chapter 6 continued Sensation and Perception

University

20 Qs

REMEDIAL ACTIVITY

REMEDIAL ACTIVITY

University

20 Qs

Photography

Photography

10th Grade - Professional Development

20 Qs

Chapter 42-- Extraoral Imaging

Chapter 42-- Extraoral Imaging

University

20 Qs

Lens 2

Lens 2

Assessment

Quiz

Other

University

Hard

Created by

Sheikh Fawazi

Used 2+ times

FREE Resource

17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the main functions of a lens or lens assembly on a camera in a surveillance system?

Defining the field of view

Controlling the amount of light passing through to the image sensor

Focusing by adjusting elements within the lens assembly

All of the above

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the amount of light passing through a lens affect the quality of the picture in a surveillance system?

The more light that passes through, the worse the quality of the picture

The less light that passes through, the better the quality of the picture

The more light that passes through, the better the quality of the picture

The amount of light does not affect the quality of the picture

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of a lens in a security camera?

Capture sound for audio recordings.

Define the field of view (how much of the scene is seen).

Connect the camera to the security system.

Power the camera with electricity.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What factors affect the size and clarity of the image quality in a surveillance system?

Distance from the scene

Focal length and Field of view

Lighting and format

All of the above

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the selection of a lens critical in a surveillance system?

It directly affects the size, shape, and sharpness of the image

It indirectly affects the size, shape, and sharpness of the image

It has no effect on the size, shape, and sharpness of the image

It only affects the lighting of the image

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which type of environment is a fixed lens typically used?

Outdoor environments where the viewing angle needs to be adjusted

 Indoor environments where the viewing angle does not need to be adjusted

Outdoor environments where the scene lighting is constantly changing

Indoor environments where the iris needs to be adjusted

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a varifocal lens differ from a fixed lens?

A varifocal lens allows the user to manually adjust the camera's lens, while a fixed lens cannot be adjusted by the user

A varifocal lens is recommended for outdoor conditions, while a fixed lens is recommended for indoor conditions

A varifocal lens offers a range of focal length, while a fixed lens only offers one focal length

A varifocal lens is not recommended for outdoor conditions, while a fixed lens is recommended for outdoor conditions

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?