Which propellant combination does the Vikas engine used in PSLV/GSLV utilize?
- Solid + Liquid
- UDMH + N2O4
- LH2 + LOX
- Kerosene + LOX
Answer: UDMH + N2O4
The Vikas engine, derived from France's Viking engine, uses hypergolic propellants: Unsymmetrical Dimethylhydrazine (UDMH) as fuel and Nitrogen Tetroxide (N2O4) as oxidizer.