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These multiple-choice quizzes will challenge your knowledge of basic and even advanced automotive systems and are based on ASE G1 test prep questions. The winners will be randomly selected from all correct entries each week. Entries must be received by midnight Sunday following each puzzle’s publication. Chances of winning are dependent upon the number of correct entries received. Employees of Babcox Media, Tomorrow’s Technician, sponsors and advertisers are not eligible to enter. Click here to view the contest rules.

Thanks to our friends at TechForce Foundation for supplying the questions for this week's PopQuiz. For more information visit TechForce Foundation

How many spark plugs does a diesel engine require?





Diesel engines are compression-ignition and therefore do not require any spark plugs

An oxygen sensor is a component of what engine system?





An oxygen sensor is used to monitor unburned oxygen in the exhaust as the exhaust leaves the engine.

True or False: Because a diesel engine is a compression ignition engine, it is always a two-stroke design.



False. Diesel engines have been produced for decades in both 2-stroke and 4-stroke designs

Which of these components is not found in an automatic transmission?





Spider gears are found in differential units, not transmissions

True or False; In a vehicle suspension system, there is sprung weight and unsprung weight. Wheels and tires are considered unsprung weight.



The weight of wheels, tires, and brake assemblies is defined as “unsprung weight” as it is not cushioned by the suspension springs.

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