Technician A says that truck brake shoe edge codes are used as an exact measure of their coefficient of friction. Technician B says that the first letter of an edge code indicates the coefficient of friction of the friction facing when cold. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: B
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a. True b. False Indicate whether the statement is true or false
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A) When the difference between the coil and outdoor air is constant B) When there is any frost on the coil C) When the coil and air temperature difference increases for a prolonged period of time D) When the air temperature drops below the coil temperature