Cables

Coaxial cables are classified as a type of:

• Balanced transmission

• Twisted pair transmission

• Unbalanced transmission

• Optical fiber transmission

What is the primary benefit of a larger diameter central conductor in a coaxial cable?

• Reduced signal loss over longer distances

• Increased noise immunity

• Improved flexibility for easier installation

• Higher voltage capacity

Why is proper grounding of the coaxial cable shield important?

• To improve video sound quality

• To increase cable lifespan

• To enable longer transmission distances

• To reduce unwanted electromagnetic interference (EMI)

What is the standard coaxial cable impedance used in CCTV systems?

• 50 Ohm

• 60 Ohm

• 75 Ohm

• 80 Ohm

You are installing a CCTV system in a large building. The camera needs to be connected to the monitor over a distance of 250m. Which type of cable would be the most cost-effective and reliable option?

• RG59 coaxial cable

•  RG6 coaxial cable

• HDMI cable

• Cat5e Ethernet cable

What type of cameras is the coaxial cable typically used for?

• Digital cameras

• Network cameras

• Analog cameras

• All types of cameras

What is the main function of the shielding in a coaxial cable?

• To carry the video signal

• To protect the center conductor from EMI

• To connect the cable to the monitor

• To provide power to the camera

What is the term "unbalanced transmission" referring to in the context of coaxial cables?

• The cable is not physically balanced.

• The video signal is referenced to ground.

• The cable requires two separate wires.

• The transmission quality is poor.

What type of cameras typically use network cables?

• Analog cameras

• Digital cameras

• Network cameras

• All types of cameras

Why are twisted wire pairs used in network cables for security systems?

• To carry more data than a single wire

• To minimize electromagnetic interference

• To provide extra power to the cameras

• To make the cable easier to connect