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Auto technology exam
Question | Answer |
---|---|
What are the four strokes in order? | Intake, compression, power, exhaust |
What position are the valves in during the compression stroke? | Closed |
What are two purposes of the flywheel? | 1. It keeps the engine running smooth 2. Starts the engine |
What produces the voltage needed to create a spark? | The coil |
What does the crankshaft turn reciprocating motion into? | Rotary motion |
What does the valve spring do? | It closes the valves |
what does the piston do? | It transfers the force of expanding gasses to the connecting rod. |
What does the connecting rod do? | It transfers force from the piston to the crankshaft. |
What does the crankcase do? | It encloses the internal parts and helps seal in the oil. |
What does the shroud do? | It covers the moving parts and helps air circulation to cool the engine. |
What does the cylinder head do? | It covers the top of the cylinder and contains the combustion chamber. |
What's the job of the throttle valve? | The throttle valve opens both sides for the air/fuel mixture. |
What is the speed of the camshaft, compared to the crankshaft? | Half of its speed |
What is the job of the rocker arm? | To open the intake valve. |