The strap-on boosters of PSLV use which type of propellant?
- Liquid only
- Solid only
- Hybrid
- Both solid and liquid depending on variant
Answer: Solid only
PSLV strap-on motors (PSOM) are solid-fuel boosters. Variants differ in number and size of strap-ons (e.g., PSLV-XL uses six larger PSOM-XL boosters).