Speed Test – 4
1. China's Guowang program is for satellite-based internet services. TRUE
2. China’s Chang’e-5 lunar mission is the first mission to bring back sample form moon.
FALSE
3. Satellite internet systems like Starlink uses satellite in LEO and mobile handset can
directly connect with the satellite. FALSE
4. Satellite internet systems are more prone to rain and bad weather. TRUE
5. The SpaceX non-geostationary orbit communications satellite constellation will
operate in the high-frequency bands around 300 GHz. FALSE
6. Space optical communications will revolutionise the space sector increasing the
speed of data communication from GSO by 10-100 times. FALSE
7. Li-Fi uses visible light. TRUE
8. Li-Fi is faster than Wi-Fi. TRUE
9. Quantum supremacy refers to the explanation of physical phenomenon through
quantum mechanics that otherwise cannot be done by classical mechanics. FALSE
10. Varunastra is Nuclear-powered submarine. FALSE
11. Quantum key distribution (QKD) makes communication secure as it enables users to
have hack-proof communication through quantum satellites. FALSE
12. Hypersonic missiles generally uses scramjet technology and are faster than Ballistic
missiles. FALSE
13. ‘Pralay’ missile is surface-to -air missile. FALSE
14. Akash missile is India’s first indigenously produced medium range Surface to Air
missile that can engage multiple targets from multiple directions. TRUE
15. Vela is a stealth guided missile destroyers. FALSE
16. INS Vikramaditya is India’s first indigenous aircraft carrier. FALSE