The GSLV (Geosynchronous Satellite Launch Vehicle) uses a cryogenic upper stage fueled by liquid _______ and liquid Oxygen.
- Hydrogen
- Helium
- Nitrogen
- Methane
Answer: Hydrogen
The cryogenic upper stage of GSLV uses Liquid Hydrogen (LH2) as fuel and Liquid Oxygen (LOX) as oxidizer. This combination provides high specific impulse, essential for lifting heavy payloads to geostationary orbits.