Technician A says that the general operating principles of Caterpillar and Siemens built HEUIs are identical. Technician B says that the Siemens HEUI is smaller and lighter than the Caterpillar equivalent. Who is correct?

A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B


Answer: C

Trades & Technology

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Cut flower coolers must have high relative humidity levels to keep flowers from desiccating (drying

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a. 70% c. 90% b. 80% d. 98%

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