Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which measurement confirms a module is powered and earthed?

  • A.A visual inspection
  • B.Battery voltage present at the supply terminal together with a negligible voltage drop on the earth under load
  • C.Voltage at its supply pin and drop at its earth pin
  • D.Continuity of the fuse alone, which confirms that the supply has reached the module and requires no further check

Answer: C

Both halves of the circuit must be proved at the module's own connector. The last option states exactly those two measurements, which makes it a correct and more precise version of the same answer. Most errors here come from carrying across a result from a neighbouring case where it does not hold. Reading the definition literally, rather than recalling a summary, avoids the usual confusion. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.