Infusing Mathematics into
Automotive Technology Instruction

    
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Brake Work Example 20

ACT Work Keys Level: 3
NATEF Task(s): V.C.10

Problem:

The wheel lug torque specification for a Mercedes Benz E430 is 105 Newton Meters. All data lists that this specification can be ±5 Newton Meters from the listed specification.

  1. What is the range of acceptable torque for this vehicle?
  2. The technician set the torque on the Mercedes Benz E430 to 115 Newton Meters. Is this acceptable? Why? Why not?

Solution:
  1. 105 Newton Meters + 5 = 110 Newton Meters
    105 Newton Meters – 5 = 100 Newton Meters
    The acceptable range is 100 < x < 110
    .

  2. No, this is not acceptable because it exceeds the acceptable range of 100–110 Newton Meters.

 




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