Satellite Communication MCQ Quiz!

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  • 1/19 Questions

    Two types of satellites.

    • Natural, Manmade
    • Natural, Human
    • Nature, man-made
    • Nature, Human
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About This Quiz

Explore the world of satellite communications with this engaging MCQ quiz! Test your knowledge on satellite definitions, types, historical contributions by Arthur C. Clarke, and subsystems. This quiz is ideal for learners interested in space science and telecommunications.

Satellite Communication MCQ Quiz! - Quiz

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  • 2. 

    How far away are synchronous satellites from earth?

    • 22,366 miles or 35,786 km

    • 20,000 miles or 34,569 km

    • 19,326 miles or 30,000 km

    • 21,455 miles or 34,786 km

    Correct Answer
    A. 22,366 miles or 35,786 km
    Explanation
    Synchronous satellites are located at a specific distance from the Earth's surface known as the geostationary orbit. This orbit is approximately 22,366 miles or 35,786 kilometers away from the Earth. At this distance, the satellite's orbital period matches the Earth's rotation period, allowing it to remain stationary relative to a specific point on the Earth's surface. This characteristic is crucial for applications such as telecommunications, weather monitoring, and navigation systems, as it ensures continuous coverage of a specific region on the Earth.

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  • 3. 

    Two types of synchronous orbits.

    • Geostationary,Geosynchronous

    • Low Earth Orbits,Geosynchronous

    • Low Earth Orbits,Medium Earth Orbits

    • Low Earth Orbits,Geostationary

    Correct Answer
    A. Geostationary,Geosynchronous
    Explanation
    Geostationary and geosynchronous orbits are two types of synchronous orbits. Geostationary orbit refers to a specific circular orbit around the Earth's equator at an altitude of approximately 35,786 kilometers. Satellites in this orbit appear stationary from the Earth's surface, making them ideal for communication purposes. Geosynchronous orbit, on the other hand, is a broader term that includes any orbit with a period equal to the Earth's rotation, which is approximately 24 hours. This means that satellites in geosynchronous orbit can have different inclinations and altitudes, unlike geostationary orbit which has specific requirements.

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  • 4. 

    Which orbit requires no tracking?

    • Geostationary

    • Geosynchronous 

    • Low earth orbit

    • Medium earth orbit

    Correct Answer
    A. Geostationary
    Explanation
    Geostationary orbit requires no tracking because it is a special type of geosynchronous orbit where the satellite remains fixed in a specific position above the Earth's equator. This means that the satellite orbits at the same rotational speed as the Earth, allowing it to stay in a fixed position relative to the Earth's surface. As a result, there is no need for constant tracking adjustments, making it an ideal orbit for communication and weather satellites.

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  • 5. 

    Three basic types of orbits.

    • Polar,Sub-Synchronous,Synchronous

    • Polar,Synchronous,chronous

    • North Polar,Sub-Synchronous,Synchronous

    • South Polar,North Polar,Synchronous

    Correct Answer
    A. Polar,Sub-Synchronous,Synchronous
    Explanation
    The correct answer is Polar, Sub-Synchronous, Synchronous. These are the three basic types of orbits. A polar orbit is when a satellite passes over or near the Earth's poles on each orbit. A sub-synchronous orbit is an orbit with a period shorter than the Earth's rotational period, causing the satellite to move westward relative to the Earth's surface. A synchronous orbit is when a satellite's orbital period matches the Earth's rotational period, resulting in the satellite appearing to stay fixed in the sky relative to a specific location on Earth.

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  • 6. 

    Who was the Man who laid out a virtual blueprint for broadcasting and communcations from space by using 3 satellites 120 degrees apart.

    • Arthur C Clark

    • Greg R Martin

    • Daniel P Brian

    • Thomas T Rockhelm

    Correct Answer
    A. Arthur C Clark
    Explanation
    Arthur C. Clark is the correct answer because he was a renowned science fiction writer and futurist who proposed the concept of using three satellites positioned 120 degrees apart to create a global communications network in geostationary orbit. This concept, known as the "Clarke orbit," laid the foundation for modern satellite communications and broadcasting systems. Clark's visionary idea revolutionized the way we communicate and paved the way for the development of technologies like satellite TV, internet, and GPS.

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  • 7. 

    Which orbit is mainly used for communications?

    • Synchronous

    • Low earth orbit

    • Medium earth orbit

    • Sub-Synchronous

    Correct Answer
    A. Synchronous
    Explanation
    Synchronous orbit is mainly used for communications because it is a geostationary orbit, meaning that the satellite remains fixed relative to a specific point on the Earth's surface. This allows for continuous communication as the satellite remains in a fixed position relative to the Earth. In contrast, low earth orbit, medium earth orbit, and sub-synchronous orbits are not geostationary and therefore not ideal for continuous communication.

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  • 8. 

    Which of the following statements best defines a satellite?

    • A body that orbits around the Earth.

    • A man-made body that orbits around another body in space.

    • A body that orbits around another body in space.

    • An object that orbits something.

    Correct Answer
    A. A body that orbits around another body in space.
    Explanation
     The term "satellite" encompasses both natural and artificial objects that orbit around another body in space. Natural satellites include the Moon, which orbits Earth, while artificial satellites include man-made objects like the International Space Station or communication satellites. The definition in option C is the most comprehensive as it includes both natural and artificial satellites and is not restricted to bodies orbiting Earth only. Options A and B are more restrictive, and option D is too vague.

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  • 9. 

    The two types of satellite networks are:

    • Complex and simple

    • In and out of orbit

    •  Natural and manmade

    • Simple and Complicated

    Correct Answer
    A. Complex and simple
    Explanation
    The correct answer is "Complex and simple." This answer accurately describes the two types of satellite networks. Satellite networks can be categorized as either complex or simple based on their design and capabilities. Complex satellite networks involve advanced technologies and sophisticated systems, allowing for a wide range of functionalities. On the other hand, simple satellite networks are less advanced and have limited capabilities. By categorizing satellite networks into complex and simple types, it becomes easier to understand their varying levels of complexity and functionality.

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  • 10. 

    Two types of Sub-Synchronous Orbits.

    • Low Earth Orbits,Medium Earth Orbits

    • Geostationary,Geosynchronous

    • Low Earth Orbits,Geosynchronous

    • Geostationary,Medium Earth Orbits

    Correct Answer
    A. Low Earth Orbits,Medium Earth Orbits
    Explanation
    The correct answer is Low Earth Orbits, Medium Earth Orbits. Sub-Synchronous Orbits refer to orbits that have a period shorter than the rotation period of the planet they are orbiting. Low Earth Orbits (LEO) are orbits that are close to the Earth's surface, typically at altitudes below 2,000 kilometers. Medium Earth Orbits (MEO) are orbits that are higher than LEO but lower than Geostationary Orbit (GEO), typically between 2,000 and 36,000 kilometers in altitude. Therefore, the correct answer includes both LEO and MEO as the two types of Sub-Synchronous Orbits.

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  • 11. 

    Which orbit requires tracking?

    • Geostationary

    • Geosynchronous 

    • Low earth orbit

    • Medium earth orbit

    Correct Answer
    A. Geosynchronous 
    Explanation
    Geosynchronous orbit requires tracking because it is an orbit in which a satellite orbits the Earth at the same speed as the Earth's rotation, allowing it to stay in a fixed position relative to the Earth's surface. Tracking is necessary to ensure that the satellite remains in its designated position and to make any necessary adjustments to its trajectory to compensate for any deviations. This is important for applications such as communication and weather satellites, which need to maintain a constant line of sight with the ground.

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  • 12. 

    What are the 7 parts of a satellite transponder?

    • Receiving antenna,BPF,LNA,Frequency translator,HPA,BPF,Transmitting antenna

    • Receiving antenna,BPF,LNA,Frequency translator,HPR,BFF,Transmitting antenna

    • Receiving antenna,BPF,HPA,Frequency translator,LNA,BPP,Transmitting antenna

    • Receiving antenna,BPF,HPA,Frequency translator,LNA,BPP,Transmitting antenna

    Correct Answer
    A. Receiving antenna,BPF,LNA,Frequency translator,HPA,BPF,Transmitting antenna
    Explanation
    The correct answer is Receiving antenna, BPF, LNA, Frequency translator, HPA, BPF, Transmitting antenna. This sequence of components is commonly found in a satellite transponder. The receiving antenna captures the incoming signals, which are then filtered by the bandpass filter (BPF) to select the desired frequency range. The low noise amplifier (LNA) amplifies the weak signals before they are translated to a different frequency by the frequency translator. The high power amplifier (HPA) boosts the signal strength for transmission, and another bandpass filter (BPF) is used to further refine the frequency range. Finally, the transmitting antenna sends the signals back to Earth.

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  • 13. 

    Principles of satellite communications.

    • Satellite

    • TX

    • RX

    • Power

    • Line of sight

    • Cables

    • Modem

    • Router

    • Telephone

    Correct Answer(s)
    A. Satellite
    A. TX
    A. RX
    A. Power
    A. Line of sight
    Explanation
    The given answer includes the key components and principles of satellite communications. A satellite is a crucial element in this system as it acts as a relay station in space. TX and RX refer to the transmission and reception of signals, respectively. Power is necessary to operate the satellite and its components. Line of sight is important for the satellite to establish a clear communication path. While not explicitly mentioned, cables are required to connect the various components. Additionally, a modem, router, and telephone may be involved in the satellite communication system for data transmission and connectivity purposes.

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  • 14. 

    Advantages of Satcomms.

    • Worldwide

    • Communications

    • Quick to set up

    • Versatile

    • Remote location

    • Weak Connection

    • Deley in communication

    • Cheap

    • Can be used Inside and with objects overhead

    • Harmless

    Correct Answer(s)
    A. Worldwide
    A. Communications
    A. Quick to set up
    A. Versatile
    A. Remote location
    Explanation
    Satcomms, or satellite communications, offer several advantages. Firstly, they provide worldwide coverage, allowing communication to be established across the globe. Additionally, Satcomms are quick to set up, enabling fast and efficient communication. They are also versatile, as they can be used in various applications and industries. Satcomms are particularly beneficial in remote locations where traditional communication infrastructure may be lacking. They can function even with a weak connection, ensuring communication is still possible. Satcomms are cost-effective, offering a cheaper alternative to other communication methods. They can be used both indoors and with objects overhead, making them flexible in different environments. Lastly, Satcomms are harmless, posing no risks to human health or the environment.

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  • 15. 

    4 disadvantages of satellite communications.

    • Lifespan of Fuel

    • Cost

    • Network of Satellites needed

    • Planning, Development & Deployment time of satellites

    • Hard to set up

    • Can only be used in certain places

    • Can only be used inside

    • Easy to break

    Correct Answer(s)
    A. Lifespan of Fuel
    A. Cost
    A. Network of Satellites needed
    A. Planning, Development & Deployment time of satellites
    Explanation
    Satellite communications have several disadvantages. Firstly, the lifespan of fuel is limited, requiring regular refueling or replacement of satellites. Secondly, the cost of building, launching, and maintaining a satellite network can be expensive. Additionally, a large network of satellites is needed to provide global coverage, increasing complexity and cost. Furthermore, the planning, development, and deployment time of satellites can be time-consuming. These factors make satellite communications hard to set up and maintain. Moreover, satellite communications can only be used in certain places and are limited to indoor use. Lastly, satellites are fragile and can easily break, leading to potential disruptions in communication.

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  • 16. 

    What are the three main hazards presented by SATCOMMS?

    • RF Hazard

    • Deployment

    • Electrical

    • Damage to kit

    • Damage to persons 

    • Radiation Hazard

    Correct Answer(s)
    A. RF Hazard
    A. Deployment
    A. Electrical
    Explanation
    The three main hazards presented by SATCOMMS are RF Hazard, Deployment, and Electrical. RF Hazard refers to the potential dangers associated with radio frequency emissions, such as interference with other systems or health risks. Deployment hazards include risks related to the installation and setup of satellite communication systems, such as falls or equipment damage. Electrical hazards involve the potential dangers of working with electrical equipment, such as electric shocks or fires. These hazards can pose risks to both the equipment and the individuals involved in SATCOMMS operations.

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  • 17. 

    What are the areas that satellites provide information?

    • Observation

    • Navigation

    • Weather

    • Research

    • Communication

    • Defence

    • Attack

    • Surveillance

    • Counter

    • Support

    Correct Answer(s)
    A. Observation
    A. Navigation
    A. Weather
    A. Research
    A. Communication
    Explanation
    Satellites provide information in various areas such as observation, navigation, weather monitoring, research, and communication. They are equipped with sensors and instruments that enable them to collect data and images of the Earth's surface, atmosphere, and space. This information is used for scientific research, monitoring weather patterns, guiding navigation systems, and facilitating global communication networks. Satellites also play a crucial role in defense and surveillance activities, providing intelligence and support in military operations. However, there is no evidence to suggest that satellites are used for attack or counter purposes.

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  • 18. 

    6 Sub-systems of the space segment.

    • Thrust Sub-system

    • Stabilisation Sub-system

    • Electrical power generation Sub-system

    • Tracking telemetry and command Sub-system

    • Communication Sub-system

    • Antenna Sub-system

    • Power Sub-system

    • Counter measure Sub-system

    • Protective Sub-system

    • Satellite Sub-system

    • Power Down  Sub-system

    • Sub Sub-system

    Correct Answer(s)
    A. Thrust Sub-system
    A. Stabilisation Sub-system
    A. Electrical power generation Sub-system
    A. Tracking telemetry and command Sub-system
    A. Communication Sub-system
    A. Antenna Sub-system
    Explanation
    The correct answer includes the six sub-systems of the space segment: Thrust Sub-system, Stabilisation Sub-system, Electrical power generation Sub-system, Tracking telemetry and command Sub-system, Communication Sub-system, and Antenna Sub-system. These sub-systems are essential for the functioning of a satellite in space. The Thrust Sub-system provides propulsion to the satellite, the Stabilisation Sub-system helps maintain the satellite's orientation, the Electrical power generation Sub-system generates power for the satellite's operations, the Tracking telemetry and command Sub-system allows communication and control of the satellite, the Communication Sub-system enables communication with Earth, and the Antenna Sub-system is responsible for transmitting and receiving signals.

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  • 19. 

    8 parts of a typical earth satellite station.

    • Users

    • Baseband

    • Power

    • Transmit

    • Receive

    • Clocking

    • Antenna

    • Montoring and control

    • Cables

    • LNA

    • HPA

    • BPF

    • Frequency translator

    • Satellite

    Correct Answer(s)
    A. Users
    A. Baseband
    A. Power
    A. Transmit
    A. Receive
    A. Clocking
    A. Antenna
    A. Montoring and control
    Explanation
    The given answer lists the 8 parts of a typical earth satellite station. These parts include Users, Baseband, Power, Receive, Transmit, Clocking, Antenna, and Monitoring and control. These components are essential for the functioning of a satellite station. The Users refer to the individuals or organizations that are utilizing the satellite station. The Baseband is responsible for the processing of signals. Power is needed to provide electricity to the station. Receive and Transmit components handle the reception and transmission of signals. Clocking ensures synchronization of operations. The Antenna is used for sending and receiving signals. Monitoring and control enable the operators to monitor and manage the station effectively.

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  • Current Version
  • Jul 26, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 09, 2019
    Quiz Created by
    Jack

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