Question : The device in a communication satellite which receives signals from an earth station and transmits them in different directions is______.
Option 1: transformer
Option 2: transistor
Option 3: transponder
Option 4: transducer
Correct Answer: transponder
Solution : The correct option is a transponder.
The transponder is the name for the component located on communication satellites that receive, amplify, and retransmit signals from earth stations. Transponders refer to the channels of a communications satellite since each one has its transceiver or repeater. Multiple video and audio channels may pass via a single transponder on a single wideband carrier thanks to digital video data compression and multiplexing.
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Question : Communication satellites are used to?
Option 1: Transmit communication signals
Option 2: Receive and redirect communication signals
Option 3: Only receive a communication signal
Option 4: Provides information from national sources only
Question : Which of the following was not an aim of the satellite INSAT-1B?
Option 1: Protecting the national borders
Option 2: TV communication
Option 3: Weather forecasting
Option 4: Disaster warning
Question : Directions: Arrange the following planets in a logical and meaningful order. 1. Earth 2. Venus 3. Mars 4. Saturn 5. Jupiter
Option 1: 3, 1, 2, 4, 5
Option 2: 2, 3, 1, 4, 5
Option 3: 2, 1, 3, 5, 4
Option 4: 1, 2, 3, 5, 4
Question : Directions: Select the correct option that indicates the arrangement of the following words in a logical and meaningful order. 1. Satellite 2. Galaxy 3. Universe 4. Planet 5. Sun
Option 1: 1, 3, 5, 4, 2
Option 2: 3, 2, 5, 4, 1
Option 3: 1, 2, 3, 4, 5
Option 4: 3, 4, 5, 1, 2
Question : Earth Summit (Save Earth) was sponsored by:
Option 1: UNESCO
Option 2: UNCED
Option 3: WHO
Option 4: UNICEF
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