Technician A says that the anchor pin (shoe anchor) is used to hold one end of the primary and secondary shoe return springs. Technician B says that shoe anchor prevents the brake shoes from rotating with the drum when the brakes are applied. Which technician is correct?
A) Technician A only B) Technician B only
C) Both Technicians A and B D) Neither technician A nor B
C
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Survivability requires a minimum rating of _________ to ensure the functional use of the system during a fire.
A. 1 hour B. 1.5 hours C. 2 hours D. 4 hours
Plant tissue testing may be useful in all of the following EXCEPT ____
a. determining trace element problems b. determining soil acidity c. distinguishing symptoms of nutrient problems from disease or other problems d. indicating nutrient uptake problems e. checking the effectiveness of a fertilizer program
Instead of wood firestops, the wall cavity can be blocked off with fire-resistant ____ insulation.
A. polyester B. steel wool C. fiberglass D. plaster
The current through a 40-mH inductor is