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Petrol engine: Quiz


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Question 1: The coolant was formerly water, but is now usually a mixture of water and ________.
1,2-DichloroethaneEthylene glycolIsopropyl alcoholGlycerol

Question 2: This mixture has a lower freezing-point and a higher boiling-point than pure water, and also prevents corrosion, with modern antifreezes also containing lubricants and other additives to protect ________ seals and bearings.
Bernoulli's principleTurbinePumpGas compressor

Question 3: Petrol engines use spark ignition and ________ current for the spark may be provided by a magneto or an ignition coil.
Tesla coilElectrical breakdownNikola TeslaHigh voltage

Question 4: Alternatives include rotary and ________ the latter typically have 7 or 9 cylinders in a single ring, or 10 or 14 cylinders in two rings.
Four-stroke engineRadial engineReciprocating engineTwo-stroke engine

Question 5: ________ -- like a V design flattened out-- are common in small airplanes and motorcycles and were a hallmark of Volkswagen automobiles into the 1990s.
Flat-four engineFlat-six engineFlat engineV8 engine

Question 6: A petrol engine (known as a gasoline engine in ________) is an internal combustion engine with spark-ignition, designed to run on petrol (gasoline) and similar volatile fuels.
AmericasSouth AmericaNorth AmericaAmericas (terminology)

Question 7: In modern car engines the ignition timing is managed by an electronic ________.
ThrottleFuel injectionInternal combustion engineEngine control unit

Question 8: Small machines, such as lawn mowers, ________ and portable engine-generators
Garden forkChainsawCircular sawAxe

Question 9: It differs from a ________ in the method of mixing the fuel and air, and in the fact that it uses spark plugs to initiate the combustion process.
Internal combustion engineDiesel engineHot bulb engineTwo-stroke engine

Question 10: The pre-mixing was formerly done in a ________, but now (except in the smallest engines) it is done by electronically-controlled fuel injection.
ThrottleIgnition systemSpark plugCarburetor


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