PYQ 2022 Q34 · RaahUPSC PYQ

2022 · Science & TechnologyPrevious Year Question

Q34.

Which one of the following statements best reflects the idea behind the "Fractional Orbital Bombardment System" often talked about in media?

A. A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.

B. A spacecraft lands on another planet after making several orbital motions.

C. A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.

D. A spacecraft moves along a comet with the same speed and places a probe on its surface.

Answer

C

Explanation

A Fractional Orbital Bombardment System (FOBS) is a warhead delivery system that uses a low earth orbit towards its target destination. Just before reaching the target, it deorbits through a retrograde engine burn. The flight path of the warhead does not reveal the target location till the payload hits the destination. China was suspected to have tested FOBS in October 2021.