Machine-translated by Google. Questions are authored in English.
Top

Discussion

A rocket is the only propulsion type that

  • A.Burns hydrocarbon fuel
  • B.Works outside the atmosphere
  • C.Produces thrust by reaction
  • D.Has no moving parts

Answer: B

Every other type depends on atmospheric oxygen and stops working where there is none. Carrying the oxidiser costs a great deal of mass, so a rocket's endurance is short even though its thrust is independent of flight speed and altitude.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.