ESSENTIAL SKILLS
INVENTORY NUMERACY
S-3
AUTOMOTIVE SERVICE TECHNICIAN
NOC 7321Page 62Automotive Service Technician
NOC 7321- Use the formula C = πD to answer the following question.
If the diameter of a flywheel is 20”, what is the outside circumference?
_____
- You need to calculate the area of the top of a piston whose diameter is 82
mm. How would you do this?
a = πr^2
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- You need to understand Ohm’s Law to diagnose problems in electrical
systems. The formula is:
E (voltage) = I (amperes) x R (ohms)
a) What is the formula for I? ____
b) What is the formula for R? ____
- Your timecard shows that you worked 9 hours each day for 5 days at $23.29
per hour.
a) Explain how you would determine your gross pay.
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b) Calculate your pay for the week.