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22 Cards in this Set
- Front
- Back
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define stroke
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movement of piston from top of travel to bottom of travel
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what stroke starts ar tdc?
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intake stroke
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what stroke starts at bdc?
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exhaust stroke
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how can we find cubic inch displacement?
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b 2 X stroke X cylinders X 0.7854
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how much practical efficiency an engine has?
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15%
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how much mechanical efficiency an enine has?
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90%
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how much thermal efficiency an engine has?
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33%
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how can we give an estimate of repair estimate?
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using flat rate
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what is the purpose of shop manual?
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gives information
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what is the purpose of a vin?
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identification of a part or car
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what kind of repairs affect the compression ratio?
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thickness, deck, different piston design
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name 3 different engine configurations?
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V type
In line Opposed |
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define volumetric efficiency
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real air flow compared to theoretical airflow
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whcih two strokes have valve open?
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Intake stroke
Exhaust stroke |
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what are the four events that take place in an engine?
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Intake stroke
Compression stroke Power stroke Exhaust stroke |
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what is an internal combustion engine?
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engine where combustion of air and fuel occurs inside a chamber
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how can we find how often an engine will fire?
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720/ cylinders
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what si the cam speed compared to crank speed?
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Cam speed is twice the crank speed
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Two cylinders travelling from tdc to bdc are called?
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companion cylinders
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Define brake horsepower
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Power lost in heat and friction
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Define torque
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Force that rotates a body
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What is the purpose of vehicle castings and forging numbers?
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Identification of the parts
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