rockets

Which engine type is the safest?

• hybrid

• liquid

• solid

What is the force that propels a rocket upwards?

• 
  Weight

• Thrust

• Momentum

• Lift

What is the main principle behind the operation of a rocket engine?

• Solar radiation

• Magnetic propulsion

• Newton's Third Law

• Combustion

Which of the following does NOT describe thrust vector control (TVC)?

• Adjusting the direction of thrust from an engine to control the rocket's attitude

• Changing the amount of fuel and oxidizer flow to the engine to alter thrust levels

• Using gimbaled engine mounts to steer the rocket

• Employing secondary control surfaces or vanes in the exhaust flow to direct thrust

Describe the function of a nozzle in a rocket engine and how its design influences thrust and efficiency.

• Nozzle directs fuel into the combustion chamber, affecting engine stability.

• Nozzle compresses air for combustion, increasing thrust.

• Nozzle expands exhaust gases, increasing velocity and thrust.

• Nozzle controls the engine's fuel intake, optimizing efficiency.

What type of engine is usually used as a booster?

• Solid propellant motor

• Hybrid propellant engine

• Electric motor

• Liquid propellant engine

What was the name of the rocket used for the Apollo 11 mission?

• Saturn V

• Wostok 1

• Proton

• Spaceship

What type of rocket is Spaceship?

• Solid-fuel rockets

• Hybrid rockets

• Liquid-propellant rockets

• Monopropellant rockets

What was the name of the chief designer of the Saturn 5 rocket?

• Jurij Gagarin

• Luis Armstrong

• Alan Shepert

• Werner von Braun

How tall is the Spaceship rocket

• 120m

• 60m

• 150m

• 100m