The switch board instruments________________?
Correct answer: A. should be mounted in vertical position
- A. should be mounted in vertical position
- B. should be mounted in horizontal position
- C. either A. or B.
- D. neither A. nor B.
Explanation
Switchboard instruments are mounted vertically so their calibrated movement operates in the intended position and gravity does not introduce a significant reading error. Horizontal mounting is not the standard arrangement for these panel instruments.
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