ESSENTIAL SKILLS
INVENTORY NUMERACY
S-2
AUTOMOTIVE SERVICE TECHNICIAN
NOC 7321
Page 59
Automotive Service Technician
NOC 7321
- The torque strength of a shaft is proportional to the cube of the shaft
diameters as shown:
Strength of shaft 1 = (diameter of shaft 1)^3
Strength of shaft 2 (diameter of shaft 2)^3
How much stronger would a 1-inch diameter shaft be than one that is ½-inch
in diameter?
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- A 28-tooth gear running at 320 rpm drives another gear. The other gear runs
at 128 rpm. How many teeth are on the other gear?
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- What is the diameter of a hose that is^1 / 16 inch larger than 2^5 / 8 inches?