Rocket Science & Basic Rocket Design Practice Quiz

Which principle must we consider before beginning to solve a rocket equation?

• Venturi Effect

• Bernoulli's Principle

• Conservation of momentum

What must we first determine when starting our rocket equation?

• The force or thrust a rocket engine produces to ultimately achieve the necessary orbital velocity.

• The acceleration potential of the rocket.

After determining the force or thrust required to deliver our rocket to the appropriate orbital velocity, what must we determine?

• The change in momentum from time (t) to a time plus a small change in time (t+dt).

• The change in velocity from time (t) to a time plus a small change in time (t+dt).

What must the momentum change of the rocket be equal to?

• The acceleration change of the rocket

• The momentum change of the exhaust gases

How do you determine a rocket's total thrust?

• To get the total thrust, you must find the product of the rocket's exhaust velocity and the rocket's maximum acceleration

• To get the total thrust, you must find the product of the rocket's total mass and the mass flow rate of the propellant

• To get the total thrust, you must find the product of the rocket's exhaust velocity and the mass flow rate of the propellant.

The throat size is chosen to choke the flow and set the mass flow rate through the system.

• TRUE

• FALSE

What is the effect that you learned about in a previous section that pertains to nozzles and can be compared to when one covers a potion of the end of a garden hose with their thumb?

• The Hall Effect

• The Venturi Effect

• The Doppler Effect

What are the two main components of a combustion chamber?

• The chamber and the nozzle.

• The chamber and the aperture.

• The aperture and the ignition source.

What is the purpose of the Throat section of the aperture?

• To increase the velocity of the created gases.

• To slow down the gasses in the most efficient manner possible.

Atmospheric pressure exerts a force on the combustion chamber, to include the inside of the nozzle. The high enthalpy gas exerts a pressure on the inside walls of the combustion chamber and through the exhaust nozzle, pushing against the atmospheric pressure.

• True

• False