If You're Not a True Auto Expert, Don't Even Bother with This Car Engine Quiz

AUTO

Becky

6 Min Quiz

What part of the engine sets fire to the air and gasoline mixture?

Sure, this is a pretty simplistic explanation, but basically,​ a spark plug ignites the oxygen and gas mixture to make energy for the engine. Engine experts just call these "plugs," but they are often called "sparking plugs" in the U.K.

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Which of the following is NOT a function of a four-stroke engine?

Funneling is not a function of a combustion, or four-stroke, engine. The strokes are intake, compression, combustion, and exhaust.

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What engine component allows fuel to enter the combustion chamber?

The intake valve allows fuel to enter the combustion chamber. In the combustion chamber, gas and air combine and are combusted (see how much sense these parts make?).

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Which valve moves engine waste products out of the engine?

The exhaust valve moves engine waste products out of the engine via the exhaust pipe. Waste materials in a combustion engine include fuel that has been burned off.

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True or False? A jet engine is not an internal combustion engine.

This is false. A jet engine, just like a car engine, is an internal combustion engine, but on a much larger scale.

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In a combustion engine, what part moves up and down to power the engine?

Pistons pump up and down to power the engine. Pistons are typically cylindrical​ and move power to a rod that, through a series of mechanisms, moves the wheels.

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What are used to seal piston heads?

Piston rings are used to seal the piston heads. The purpose of the seal is to prevent gas from getting into the crank case.

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How often should you change your car's oil?

Most oil manufacturers recommend that you change your car's oil every 3,000 miles. However, you should always follow your car manufacturer's recommendations about when to service your engine.

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Which of the following is not a function of today's combustion engine?

Stephen King might be able to make a car growl, but growling is not a function of today's combustion engine. The four functions of a four-stroke engine are intake, compression, combustion, and exhaust.

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What engine component rotates to help move the wheels?

The crankshaft rotates to help move the wheels of the car. Think of this as a sort of handle that turns to produce movement or power.

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What connects the piston to the crankshaft?

The piston rod connects the piston to the crankshaft. The crankshaft turns to move power to the wheels.

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What happens to an engine when it gets too hot?

If an engine gets too hot, it can burn up. The fluids in your car's engine help keep it from getting too hot.

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What type of engine is a common combustion engine?

Today's common combustion engine is a four-stroke engine. The strokes are intake, compression, combustion, and exhaust.

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Which of the following is NOT a function of a four-stroke engine?

Fill up is not a function of a four-stroke engine. The four functions are intake, compression, combustion, and exhaust.

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Why are today's car engines called internal combustion engines?

Today's car engines are called internal combustion engines because the combustion that powers the car takes place inside the engine. Yes, there are such things as external combustion engines - like a steam engine.

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Today's internal combustion engine uses what to make power?

Today's internal combustion engine uses heat to make power. The magic takes place in a combustion chamber.

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True or False? A car engine can't have more than eight cylinders.

This is false. A car engine can have more than eight cylinders. In fact, it's rare, but a car engine can have even more than 20 cylinders.

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True or False? A rocket engine is not a combustion engine.

This is false. A rocket engine is an internal combustion engine that functions in much the same way as a car engine.

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Why are V6 engines called that?

V6 engines are referred to as such because there are six cylinders displayed in a V pattern. This pattern helps reduce the size of the engine.

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Internal combustion engines are typically powered by what category of fuel?

Internal combustion engines are typically powered by fossil fuels. Fossil fuels include fuels such as gasoline and diesel.

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How does burning gasoline cause heat in internal combustion engines?

Burning gasoline causes heat in internal combustion engines because the molecules in the gasoline expand and get hot. Gasoline molecules include hydrogen and carbon.

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Pistons equal what in a modern car engine?

Pistons equal power in the modern car engine. The more pistons an engine has, the more powerful it is.

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What gets rid of dirt and dust in the air before it reaches the engine?

A car engine uses a simple air filter to make sure that dirt and dust don't get into the engine. The air is necessary to help ignite the fuel in the engine.

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If a rocket engine is a combustion engine, and combustion engines need oxygen, how do space rockets get oxygen?

Space rockets carry oxygen in storage tanks on the ship. There is no air in space.

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Your car has an ignition and a space launch signals ignition before liftoff. What does ignition mean?

Ignition is the process of setting something on fire. When you turn the ignition key of your car or when a space rocket has ignition, that means the engine has ignited the fuel.

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What car part helps keep the engine cool?

A car's radiator helps keep the engine cool. The radiator uses a coolant to keep things cool. The exhaust system also helps keep the engine cool by moving used fuel out of the engine.

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Why can't we use wood or coal to power a car engine?

We actually could use wood or coal to power a car's engine, but that would be an external combustion engine, like a steam engine. External combustion engines tend to be large and inefficient. Today's internal combustion engines use fuel that is more efficient so the engines are smaller.

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Which of the following is not a function of today's combustion engine?

Although you may be able to do a wheelie with your car, wheelies are not a function of the engine. The four functions of a four-stroke combustion engine are intake, compression, combustion, and exhaust.

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What component sits at the bottom of the sump?

The oil pan sits at the bottom of the pump. The job of the oil pan is to collect oil.

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Four-cylinder​ engines are typically what configuration?

Four-cylinder​ engines are typically straight or inline - two names for the same configuration. Engines with six to eight cylinders are displayed in a V shape.

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What substance provides lubrication to an engine?

Motor oil, or just oil, is used to lubricate the engine parts. Without motor oil, your car's engine will cease to function.

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What part keeps the engine from vibrating?

The flywheel keeps the engine from vibrating too much. Combustion causes vibration, but the flywheel balances the engine so it does not vibrate too much.

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Which of the following is NOT a type of cylinder arrangement?

Crowded is not a type of cylinder arrangement. Typical arrangements include the V shape, straight or inline, or flat, although flat arrangements are less common.

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What type of engine does not have pistons?

A rotary engine does not have pistons. A rotary engine is an early type of combustion engine that did not have a moving crankshaft, and therefore, had no need for pistons.

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From start to finish, the four functions of a four-stroke engine are intake, compression, combustion, and what?

From start to finish, the four functions of a four-stroke engine are intake, compression, combustion, and exhaust. These are the functions of today's combustion engine.

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Image: Morsa Images/ DigitalVision/gettyimages

About This Quiz

Are you a true car buff... nay, a true car expert? Do you live and breathe cars? Is your idea of a great weekend tinkering with your classic car in your own home-based garage? Do you go to car shows just to look at the engines (who cares about the body)? If these sentences describe you, then you just might have enough car smarts to ace this quiz. Are you ready to find out how much you really know about car engines?

Today's car engines are typically internal combustion engines. But here's what you may not know. Although it is certainly possible to use an external combustion engine to power a vehicle (think locomotive), the fuel used in an external combustion engine is inefficient and you'd need too much of it to make your car's engine go vroom. Today's internal combustion engine is so efficient, it takes a relatively small amount of fuel to make the engine ignite immediately. Wouldn't it be frustrating to not only have to carry around a trunk full of wood or coal but to also have to wait until that fuel source heated up enough to result in enough power to move the vehicle? Not to mention the pollution. We know that fossil fuels such as gasoline produce more in the way of emissions than we'd like, but can you imagine puffing down the road like a locomotive? Whew! That doesn't sound like fun at all.

But what does sound like fun is this quiz. Click on begin if you're ready to prove how much you know about car engines.

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