The Rocket Engines Quiz


By: Staff

4 Min Quiz

Image: refer to hsw

About This Quiz

These machines have helped humankind blaze new trails to the heavens. How much do you know about rocket engines?

LOX/RP-1 engines use what sort of chemicals as their fuel?

The combination is ignitable and controllable.


Newton's third law of motion says that for every action force there is an equal and opposite WHAT?

That law comes in play in every part of a rocket's construction and functionality.


Alan Shepard was the first American in space. Which rocket got him there?

The Redstone was actually a military rocket meant to carry warheads, not people.


Rockets require what to fly through the air?

Without thrust, rockets can't even begin their missions.


How are the chemicals in a solid rocket combined before ignition?

They don't burn, though, until they are exposed to an igniter.


The Bell X-1A is best known for accomplishing which feat?

This rocket-powered plane featured some improvements that let it top 1,600 mph in 1954.


What type of rockets were the first created by humans?

These rockets use a solid fuel propellant to create thrust.


In order to work properly, liquid rockets require propellant and what other chemical component?

The propellant and oxidizer are stored in separate compartments and then combined in a combustion chamber.


What is the primary ingredient in the rocket fuel called RP-1?

The kerosene is refined and is in many ways a lot like jet fuel.


In which country were rockets invented?

The Chinese developed rockets that used gunpowder as fuel back in the 1200s.


What is added to a turborocket to make it fly higher?

With extra oxygen in the airstream, the thrust increases dramatically; the extra fuel, however, adds weight to the rocket.


The three propellants used in a tripropellant rocket are usually hydrogen, hydrocarbon and what?

The light weight of the hydrogen cuts down on the heft that must be thrust upwards.


Which person first proposed that rockets could be used to explore space beyond Earth's atmosphere?

He first envisioned the concept in 1861, long before other scientists ever thought of rockets for space travel.


At which speed does a ramjet have its best efficiency?

These rockets use compressed air burned with the rocket exhaust to create high speeds at good efficiency.


In what year was the first liquid-propellant rocket engine tested?

It was the year Robert Goddard worked out a few kinks in the development of these kinds of rockets.


What sort of liquid did Goddard use in his first rocket?

His first rocket flew for fewer than three seconds and went four stories high.


Which rocket was the first to propel an American into orbit?

The rocket sent John Glenn into orbit, where he circled the Earth three times.


Which rocket-powered craft set the world record for the highest speed attained by a manned aircraft?

The U.S. X-15 went right up to the edge of outer space, meaning the pilots technically qualified as astronauts.


What was the maximum speed of the X-15?

That's about Mach 6.72; that speed was achieved in October 1967.


Solid-fuel rockets can sit idle for years before being launched.

These fuels are pretty stable; liquid fuel, however, is loaded just before the rocket is launched.


What is one tremendous benefit of rocket engines over jet engines?

That means rockets work even in space, a place where jets would be useless.


What is a downside to using solid fuel in a rocket?

Once a solid rocket starts, it goes until the fuel is depleted.


What kind of rocket is only theoretical at this point?

If they ever became a reality, they could be very useful for deep space missions.


Rocket exhaust is also called what?

The rocket system accelerates working fluid and eventually creates thrust to launch the rocket.


Why do liquid rockets tend to be heavier than solid fuel rockets?

Liquid rockets require extra parts, like storage tanks and pumps, that add to their overall heftiness.


What sort of fuel did NASA's space shuttles require?

The two huge boosters on the sides of the shuttles carried large loads of solid fuel for the journey towards space.


Which rocket is the tallest and heaviest ever used for actual space operations?

The Saturn V is the rocket that enabled the Apollo missions to the moon.


What sort of fuel did the Saturn V use to make its trailblazing journeys?

The rocket had two burn phases and three types of fuel, including liquid kerosene, liquid hydrogen and liquid oxygen.


How many pounds of thrust could the Saturn V generate?

The incredible thrust was necessary to send the 363-foot-tall rocket into the heavens.


The Saturn V could generate 60 gigawatts of energy, which is about the peak energy demand of which country?

The crazy amount of power created by the Saturn V was nearly impossible to understand in layman terms.


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