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Insert the missing words in describing an internal combustion engine's components and their functions.<\/p>\n","overallFeedback":[{"from":0,"to":100}],"showSolutions":"Show solution","tryAgain":"Retry","checkAnswer":"Check","notFilledOut":"Please fill in all blanks to view solution","answerIsCorrect":"':ans' is correct","answerIsWrong":"':ans' is wrong","answeredCorrectly":"Answered correctly","answeredIncorrectly":"Answered incorrectly","solutionLabel":"Correct answer:","inputLabel":"Blank input @num of @total","inputHasTipLabel":"Tip available","tipLabel":"Tip","behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"autoCheck":false,"caseSensitive":false,"showSolutionsRequiresInput":true,"separateLines":false,"confirmCheckDialog":false,"confirmRetryDialog":false,"acceptSpellingErrors":false},"scoreBarLabel":"You got :num out of :total points","confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"questions":["

An engine consists of *four* main rotational components<\/p>\n","

A *piston* is a cylindrical device that sits flush within the cylindrical combustion chamber.<\/p>\n","

The *spark plug* ignites the fuel in the combustion chamber.<\/p>\n","

A controlled explosion forces the piston down, this is called the *power* stroke.<\/p>\n","

A common four cylinder internal combustion engine has *four* strokes.<\/p>\n","

A *connecting rod* is attached between the piston and the *crank* shaft.<\/p>\n","

The final stroke of an internal combustion engine is an *exhaust* stroke.<\/p>\n","

A 4 cylinder internal combustion engine of a vehicle normally has *16\/sixteen* valves.<\/p>\n"]}

Engine components

Mark Gilbert