2017
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Brahmos - II
|
|
|
Agni - III
|
|
|
GSLV - III
|
|
|
Geostationary Communication satellite (GSAT-9)
|
Detailed explanation-1: -Once a satellite is in position above Earth it needs a method of propulsion to make sure it can move if needed, avoiding space debris, compensating for drag over time, and even de-orbiting itself at the end of its mission. The current standard propellant for satellites is hydrazine-based fuel, which is highly toxic.
Detailed explanation-2: -The different applications which currently make or may make use of Electric Propulsion Systems in the future, are: LEO (e.g. Earth Observation, Earth Science, constellations) MEO (e.g. Navigation) GEO (e.g. Telecommunications)
Detailed explanation-3: -Electric thrusters provide various types or propulsion split into two categories. The first category is ion and plasma drives which include electrostatic, electrothermal, and electromagnetic propulsion. The second category is non-ion drives including photonic, electrodynamic tether, and unconventional propulsion.
Detailed explanation-4: -Ionic Propulsion from NASA NASA’s new X3 thruster, which is being developed by researchers at the University of Michigan in collaboration with the agency and the US Air Force, has broken records in recent test. It’s hoped that the technology could be used to ferry humans to Mars.