II. Rockets

The first ever rockets prepared by Chinese were used as
1. Firecrackers
2. Explosives
3. Fire arrows
4. Weapons
Which of the following is not the part of a rocket.
1. Structural system
2. Desktop system
3. Payload system
4. Guidance system
Which system in the rocket takes up most of the space and contains fuel?
1. Structural system
2. Payload system
3. Guidance system
4. Propulsion system
Expansion of PSLV is
1. Polar satellite launch vehicle
2. Polar satellite lunch vehicle
3. Portable satellite launch vehicle
4. Portable satellite lunch vehicle
Which system in the rockets carries the various instruments?
1. Guidance system
2. Structure system
3. Payload system
4. Propulsion system