Technician A says that it is okay to work on a defective mains electrical system providing you have learned to identify the three color codes used in the wiring. Technician B says that only qualified electricians should work on 3-phase, high-voltage circuits and components. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
B. Technician B only
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The vector in Figure 4.8 is the sum of vectors A and B. Assume that vector B is horizontal. Given that ? = 31°, ? = 22°, and the magnitude of B = 29 m, find the magnitudes and directions of vectors and .
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A(n) ____ electrician is an experienced electrician who may have completed training through an apprenticeship program and is able to work independently without supervision. a. tradesman c. journeyman b. salesman d. apprentice
xa. tradesman b. salesman c. journeyman d. apprentice
A vehicle with the engine in the front can be ________
A) Four wheel drive B) Rear wheel drive C) Front wheel drive D) Any of these
Technician A says that in a paint ratio of 4:1:1, the 4 stands for the amount of reducer that is added to the mixture. Technician B says that a painter with a high transfer efficiency is a painter who will save a paint department money by using less materials. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B