SpaceX Rocket Engines and Fuels Quiz

What is the primary goal of SpaceX's new Raptor engine?

• To improve fuel efficiency for Earth-based missions

• To enable missions to Mars and back

• To replace the Merlin engine for all missions

• To reduce the cost of satellite launches

Which combination of fuels was used by Dr. Robert Goddard in 1926 for the first rocket launch?

• Liquid hydrogen and liquid oxygen

• Gasoline and liquid oxygen

• RP-1 and liquid oxygen

• Methane and liquid oxygen

What is specific impulse a measure of in rocket fuels?

• The cost-effectiveness of the fuel

• The efficiency of energy conversion into thrust

• The boiling point of the fuel

• The density of the fuel

Why is RP-1 considered an ideal fuel for smaller fuel tanks?

• It is highly volatile

• It has a low boiling point

• It has a high density

• It is eco-friendly

What is a significant advantage of using methane as a rocket fuel for Mars missions?

• It has a lower specific impulse than RP-1

• It can be produced on Mars using local resources

• It is more volatile than other fuels

• It requires larger fuel tanks