As shown in the illustration, the ammeter...

Question 1 / 205eccef9cbacbc34ba4d45b48

Question 1 of 205eccef9cbacbc34ba4d45b48

As shown in the illustration, the ammeter measures what current? See illustration EL-0090.

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Question 1 of 20

5eccef9cbacbc34ba4d45b48

As shown in the illustration, the ammeter measures what current? See illustration EL-0090.

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🔍 Key Concepts

• Look carefully at where the ammeter symbol (A) is placed in the circuit relative to the rectifier bridge and the cables going to the protective anodes and reference anodes. • Notice that the reference anodes have a selector switch and a voltmeter, while the protective anodes do not show an individual selector switch near the meter in question. • Think about whether the ammeter is in a single branch or in a common return/feeder that serves more than one anode.

💭 Think About

• Trace the current path from the rectifier bridge output, through the ammeter, and then to the anodes on the hull. Does the ammeter sit in a line that all protective anode currents must pass through, or only one? • Compare how the reference anodes are monitored versus how the protective anodes are monitored in this diagram. Which device (ammeter or voltmeter) is associated with each group? • Ask yourself: is there any switching device drawn in series with the ammeter that would allow you to select one anode at a time, or is it fixed in a single location in the main circuit?

✅ Before You Answer

• Identify exactly which conductor(s) the ammeter is inserted into and whether that conductor is common to all protective anodes or to just one. • Verify whether the selector switch shown is connected to the voltmeter (V) and reference anodes, or to the ammeter (A) and protective anodes. • Confirm whether any part of the diagram shows a separate control winding or other control circuit in series with the ammeter, or if the meter is only in the main anode output line.

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Question 1 of 20

As shown in the illustration, the ammeter measures what current? See illustration EL-0090.

It measures the control winding current of the saturable core reactor.

It measures the total sum of protective anode currents.

It measures the individual protective anode current as selected.

It measures the individual reference anode current as selected.

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Question 1 / 205eccef9cbacbc34ba4d45b48

Question 1 of 205eccef9cbacbc34ba4d45b48

As shown in the illustration, the ammeter measures what current? See illustration EL-0090.

Back

Question 1 of 20

5eccef9cbacbc34ba4d45b48

As shown in the illustration, the ammeter measures what current? See illustration EL-0090.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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