Oklahoma Cctv (Closed Circuit Television) Practice Test
.
- 1.In reference to cabling, UTP means:
- A.
Universal twisted plenum
- B.
Unshielded twisted pair
- C.
Unshielded twisted plenum
- D.
Universal twisted pair
- 2.According to NFPA 70, what determines the type of insulation used on conductors in an installation?
- A.
Length of conductor run
- B.
Type of raceway
- C.
Environment
- D.
Current of the circuit
- 3.What feature helps improve picture quality when aiming cameras towards brightly lit areas?
- A.
Manual iris
- B.
Backlight compensation
- C.
IR illumination
- D.
Electric iris
- 4.The term CIF refers to:
- A.
A common bandwidth requirement
- B.
A common resolution
- C.
The light output of a camera
- D.
The grey scale of an image
- 5.A characteristic of direct current is that it:
- A.
Cannot be stored
- B.
Changes polarity
- C.
Has a constant polarity
- D.
Is produced by a transformer
- 6.What crime is committed by a technician or salesperson who falsifies a customer’s signature or adds content to a document that has already been signed?
- A.
Fraud
- B.
Larceny
- C.
Indigent interference
- D.
Invasion of privacy
- 7.What does CCD stand for?
- A.
Compressed Capture Device
- B.
Charged Compressed Device
- C.
Capacitive Coupled Device
- D.
Charged Coupled Device
- 8.What is the correct setting on a meter for measuring VAC?
- A.
Ohms
- B.
V
- C.
A_ _ _
- D.
V_ _ _
- 9.A blown fuse in a power supply usually indicates:
- A.
Inadequate voltage
- B.
Too much resistance
- C.
Too much current is being drawn
- D.
The poser supply is too large
- 10.GSM and CDMA are two types of:
- A.
Two-way radio mesh networks
- B.
Cellular networks
- C.
Public-switched telephone networks
- D.
Internet networks
- 11.What is the total current of the circuit shown above? (Table not shown here)
- A.
0.125A
- B.
1.25A
- C.
1.58A
- D.
7.58A
- E.
Need the table to better answer this question
- 12.What type of network address is needed to remotely view a NVR or DVR on a long term basis?
- A.
Media Access Control
- B.
Dynamic Host Configuration Protocol
- C.
Static
- D.
Dymanic
- 13.What does WDR stand for?
- A.
Wide Dynamic Range
- B.
Wide Distance Reading
- C.
Wide Dynamic Resolution
- D.
Wide Distance Resolution
- 14.What measurement is needed to determine focal length?
- A.
IR cut filter rating
- B.
Operating voltage of the camera
- C.
Electronic iris lens size
- D.
Distance from the camera to the desired view
- 15.If a conflict exists between adopted references, the reference that applies shall be the one:
- A.
That is adopted by the OSFM
- B.
With the more stringent standard
- C.
That is adopted by the local jurisdiction
- D.
Used by the AHJ
- 16.In video surveillance systems, RS485 is commonly used for:
- A.
Displaying images on a remote monitor
- B.
Controlling PTZ actions
- C.
Connecting video from a network camera
- D.
Transmitting images over distances greater than 3000’
- 17.How many trainees per job site can work under the supervision of a licensed technician?
- A.
Two
- B.
Three
- C.
Four
- D.
Five
- 18.Low voltage wiring installations must:
- A.
Comply with NFPA 70
- B.
Use D-rings to secure cable
- C.
Comply with manufacturer’s recommendations
- D.
Use jacketed, shielded cable
- 19.According to NFPA 70, direct buried cables must be:
- A.
Temperature rated
- B.
Arranged so as to prevent damage when the ground settles
- C.
Armored and jacketed
- D.
Protected from animals that burrow underground
- 20.A technician experiences sudden weakness on the right side of her body and is having trouble speaking and understanding simple statements. What is the likely cause of her symptoms?
- A.
Dehydration
- B.
Stroke
- C.
Low blood sugar
- D.
High blood sugar
- 21.If a system draws 500mA, approximately how long will a 7Ah battery last?
- A.
14 minutes
- B.
140 minutes
- C.
14 hours
- D.
140 hours
- 22.Any physical assault, threatening behavior, or verbal abuse that occurs in an employment setting is called:
- A.
Bullying
- B.
Occupational battery
- C.
Workplace violence
- D.
Harassment
- 23.0.0500A equals:
- A.
1.5mA
- B.
5A
- C.
50A
- D.
500A
- 24.When measuring current draw in a circuit, meter leads must be placed:
- A.
In parallel with the circuit with power removed from the circuit
- B.
In series with the circuit with power removed from the circuit
- C.
In series with the circuit with the circuit intact
- D.
In parallel with the circuit with the circuit intact
- 25.What shortcut calculation is used to approximate the total resistance of a circuit that includes several identical devices wired in parallel?
- A.
Divide the source voltage by the resistance of one of the devices
- B.
Multiply the source voltage by the resistance of one of the devices
- C.
Find the resistance of one of the devices, then divide that by the number of devices in the circuit
- D.
Find the resistance of one of the devices, then multiply that by the number of devices in the circuit
Questions: 10 | Attempts: 156135 | Last updated: Jul 25, 2021
-
Sample QuestionAn enemy finds you.You will:
Questions: 10 | Attempts: 143021 | Last updated: Jan 12, 2022
-
Sample QuestionWhat is your favorite food?
Questions: 10 | Attempts: 92640 | Last updated: Jul 16, 2021
-
Sample QuestionWhat is your favorite weather?
Back to top