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What is the core purpose of the inner conductor in a coaxial cable?
a. Carries the data signals
b. Shields from external interference
c. Acts as insulation
d. Grounds the system
Answer: ageeksforgeeks+1
Which of the following layers in a coaxial cable is responsible for blocking electromagnetic interference (EMI)?
a. Outer sheath
b. Dielectric layer
c. Metallic shield
d. Central conductor
Answer: cuninets+1
Which transmission line feature enables coaxial cables to carry high-frequency signals with low losses?
a. Flexible plastic sheath
b. Shielded concentric layers
c. Conductive gel coating
d. Twisted pair interior
Answer: bwikipedia
Who patented the first recognized coaxial cable in 1929?
a. Graham Bell
b. Lloyd Espenschied and Herman Affel
c. Oliver Heaviside
d. Robert Metcalfe
Answer: butmel
What is the function of the dielectric layer in a coaxial cable?
a. Prevents signal loss and maintains electrical properties
b. Increases bandwidth
c. Grounds the cable
d. Boosts power output
Answer: ageeksforgeeks+1
Which of the following is NOT a common use for coaxial cables?
a. Cable television
b. Broadband internet
c. Satellite signals
d. Power supply wiring
Answer: dwikipedia+2
What type of coaxial cable is primarily used for cable TV and broadband internet?
a. RG-59
b. RG-6
c. Triaxial
d. Hardline
Answer: bscaler+1
What is the main advantage of the shielding in coaxial cables?
a. Reduces voltage drop
b. Prevents signal radiation and external interference
c. Makes the cable waterproof
d. Increases cable flexibility
Answer: buninets+1
What impedance are most telecommunication coaxial cables designed for?
a. 25 Ohm
b. 50 Ohm
c. 75 Ohm
d. 100 Ohm
Answer: bhltechmw
The RG-8 coaxial cable is mainly used in:
a. Thin Ethernet
b. Audio control rooms and radio stations
c. Wireless routers
d. USB connections
Answer: bscaler
A major historical application for coaxial cable in the 1936 Berlin Olympics was:
a. Internet distribution
b. Image broadcasting
c. Weather data logging
d. Telephony signaling
Answer: butmel
The twinaxial cable features:
a. Two conductors in the core
b. Fiber outer sheath
c. Higher resistance
d. No shielding layer
Answer: ameridiancableassemblies+1
Which of the following is a disadvantage of coaxial cable?
a. High flexibility
b. Bulky structure
c. Immune to damage
d. Unlimited scalability
Answer: bheadsupb2b+1
The primary risk for outdoor coaxial cable installations is:
a. UV damage
b. Water ingress and moisture
c. Overheating
d. Wire splitting
Answer: bdolphmicrowave
The frequency range for coaxial cables typically spans from:
a. kHz to GHz
b. GHz to THz
c. Hz to kHz
d. MHz to THz
Answer: ahltechmw+1
The first practical use of coaxial cables in transatlantic communications was in which decade?
a. 1880s
b. 1930s
c. 1950s
d. 1970s
Answer: cutmel
On which axis do the inner conductor and outer shield of a coaxial cable lie?
a. Parallel axes
b. Geometric axis
c. Perpendicular axes
d. Offset axis
Answer: bwikipedia
What is the most common failure mode for coaxial cable in outdoor environments?
a. Short circuiting
b. Water ingress causing attenuation
c. Overheating of outer jacket
d. Insulation hardening
Answer: bdolphmicrowave
Which layer in coaxial cable construction provides flexibility for frequent movement?
a. Hardline sheath
b. Flexible polymer
c. Copper braid
d. Dielectric foam
Answer: bmeridiancableassemblies+1
Which coaxial cable type is best for minimal bending and maximum stability?
a. Flexible cable
b. Semi-rigid cable
c. Rigid cable
d. Triaxial cable
Answer: cgeeksforgeeks+1
Which of the following is an important technical characteristic of coaxial cable?
a. Poor impedance stability
b. Environmental resistance
c. Low bandwidth
d. High installation difficulty
Answer: bhltechmw
Coaxial cables are most similar in function to:
a. Twisted pair cables
b. Optical fiber cables
c. Ribbon cables
d. Flat power cords
Answer: ageeksforgeeks+1
What is a unique advantage of coaxial cable compared to twisted pair cable?
a. Lower cost
b. Higher bandwidth and better noise immunity
c. Smaller size
d. Simpler connectors
Answer: btutorialspoint+1
Common coaxial cable connector type used in networking is:
a. RJ-45
b. BNC
c. USB Type-A
d. SC
Answer: buninets+1
What is one main disadvantage of using coaxial cable over fiber optics?
a. Lower noise immunity
b. Slower data rates and scalability limits
c. Higher installation complexity
d. No outdoor capability
Answer: brfwireless-world+2
Which cable was widely used in early Ethernet LANs?
a. STP cable
b. RG-8 cable (Thick Ethernet)
c. RG-6 cable
d. PVC cable
Answer: bbaeldung+1
Which coaxial cable type has the best resistance to signal attenuation in HDTV transmission?
a. RG-6
b. RG-59
c. RG-11
d. LMR
Answer: cgeeksforgeeks
Which of the following best describes the triaxial cable?
a. No metal shield
b. Extra copper braid and higher bandwidth
c. Plastic shielding only
d. Used for power transmission only
Answer: bmeridiancableassemblies+2
Signal transmission in a coaxial cable is mainly done via:
a. Copper mesh
b. Central conductor
c. Dielectric foam
d. Metallic sheath
Answer: bgeeksforgeeks+2
In what mode does baseband coaxial cable operate for dedicated bandwidth?
a. Split-band mode
b. Unmodulated mode
c. Broadband mode
d. Baseband mode
Answer: dgeeksforgeeks
What is the main effect of cuts, kinks, or bends in coaxial cables?
a. Decreased cost
b. Signal degradation or failure
c. Improved flexibility
d. Reduced attenuation
Answer: bdelcocables+1
The metallic shield in coaxial cable construction also functions as:
a. Protective grounding
b. Visual indicator
c. Power carrier
d. Uninsulated conductor
Answer: auninets+1
Which coaxial cable property allows it to maintain signal integrity in harsh environments?
a. High flexibility
b. Environmental resistance
c. Minimal insulation
d. Vibrant color coding
Answer: bheadsupb2b+1
A defining characteristic of coaxial cable is:
a. Conductors on parallel axes
b. Shield and conductor sharing a geometric axis
c. Reinforced fiber core
d. Exposed metal shield
Answer: bwikipedia
The main reason for using amplifiers with long coaxial cable runs is to:
a. Increase capacitance
b. Counteract signal attenuation
c. Change impedance
d. Reduce cable noise
Answer: brfwireless-world+1
RG-59 is mostly used for which application?
a. High-speed data center backbone
b. CCTV and low-frequency video transmission
c. Fiber channel storage
d. Telephone cabling
Answer: bgeeksforgeeks
During the early 20th century, what key need did coaxial cables address in telecommunications?
a. Transmission of optical signals
b. Reduction of signal interference and support for higher bandwidth
c. Compact power delivery
d. Simplified manufacturing
Answer: bcircuitassembly+1
The outer covering of coaxial cables is mainly made of:
a. Silver
b. Insulating plastic or polymer
c. Braided copper only
d. Aluminum foil
Answer: buninets+1
Attenuation in a coaxial cable is best described as:
a. Increase in signal strength over distance
b. Decrease in signal strength as cable length or frequency increases
c. Improved shielding over time
d. Constant across all frequencies
Answer: bhltechmw
Which property makes coaxial cables suitable for high-power transmission?
a. High resistance
b. Ability to carry higher voltage and power loads
c. Fiber reinforcement
d. Minimal conductor area
Answer: bhltechmw
Flexible coaxial cables are preferred in which situations?
a. Hazardous environments
b. Installations needing frequent cable movement
c. Permanent underground burial
d. Power supply circuits
Answer: bmeridiancableassemblies+1
Triaxial cables are preferred in:
a. Audio systems only
b. High-performance systems with strict noise protection requirements
c. Routine power delivery
d. Fiber-optic networks
Answer: bmeridiancableassemblies+1
What is a “node” in coaxial cable networking context?
a. Shielding layer
b. Connecting device on the segment
c. Dielectric insulator
d. Amplifier box
Answer: btutorialspoint+1
Which technical property of coaxial cable is crucial for matching with connected devices?
a. Voltage rating
b. Color coding
c. Impedance characteristics
d. External diameter
Answer: chltechmw
What is the primary material used for the conductor in most coaxial cables?
a. Aluminum
b. Silver-coated copper or solid copper
c. Gold alloy
d. Lead-tin
Answer: bgradconn+1
Which is a typical node capacity per segment for coaxial cable LAN setups?
a. 2
b. 5
c. 10
d. 30 to 100
Answer: dgeeksforgeeks+1
Why is coaxial cable considered less secure than some alternatives?
a. It is easy to tap by breaking and using T-joints
b. Its signals are encrypted by default
c. It requires expensive connectors
d. Only fibers can be tapped
Answer: arfwireless-world+1
In terms of bandwidth, coaxial cables support:
a. Only low-speed data
b. Moderate to high-speed data
c. Only analog voice signals
d. No data at all
Answer: bgeeksforgeeks+2
Which failure can increase a coaxial cable’s attenuation by 2-4 dB at 1 GHz and raise network noise significantly?
a. Overheating of jacket
b. Water saturation and oxidation
c. UV exposure
d. Incorrect color coding
Answer: bdolphmicrowave
Key historical contributor to coaxial cable technology in the 1880s:
a. Lloyd Espenschied
b. Oliver Heaviside
c. Herman Affel
d. Thomas Edison
Answer: bcircuitassembly+2

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