Which of the examples below expresses the distributive law?
A) (A + B) + C = A + (B + C) B) A(BC) = (AB) + C
C) A + (B + C) = AB + AC D) A(B + C) = AB + AC
D
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Technician A says that improper transmission fluid can be the cause of excessive shift effort during the dynamic shift test. Technician B says that worn or defective clutch components could be the cause of excessive shift effort during the dynamic shift test. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Answer the following statements true (T) or false (F)
1. A wall framed with wood or steel studs is a mass wall. 2. Although leakage and diffusion are two separate mechanisms, their impact on the performance of the envelope is the same. 3. Liquid-applied air barriers and membrane air barriers can be used interchangeably. 4. The use of membrane or liquid air barriers is required in the envelope of all heated or cooled buildings.
Technician A says to clean an aluminum engine in an alkaline solution for best results. Technician B says for best results, disassemble the heads before hot tanking. Which technician is right?
A. Technician A B. Technician B C. Both technicians D. Neither technician
The majority of air leaks in sheet metal duct systems occur:
A) Around takeoffs on supply and return plenums. B) In the seams of adjustable elbows. C) At joints between ducts. D) Along the lengthwise seam in the duct.