In the illustration, the function generators...

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Question 1 of 205eccefa1bacbc34ba4d471fa

In the illustration, the function generators will accept only a signal of a given polarity and the amplifier "M" inverts the polarity of the signal. If negative is used for the ahead and positive for the astern reference potentiometers, moving the bridge reference potentiometer in the direction indicated will have what effect while the system is operating in the mode selected for in the illustration? See illustration SE-0002.

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🔍 Key Concepts

• Signal polarity and inverting amplifier M – how the sign (positive/negative) of the bridge reference changes after passing through M. • Ahead vs. astern function generators – which one is designed to accept negative polarity and which accepts positive polarity, according to the problem statement. • Control mode selection – from the illustration, whether control is at the bridge or in the engine room when the bridge reference potentiometer is being moved.

💭 Think About

• Follow the bridge reference signal path on the diagram: after the potentiometer, where does it go, and does it pass through amplifier M before reaching the function generators? • After M inverts the signal, what is the new polarity, and therefore which function generator (ahead or astern) can actually accept and process that signal? • Look at the mode shown in the illustration: is the engine room reference in the circuit or bypassed/idle, and does that allow or block the bridge signal from affecting the steam valves?

✅ Before You Answer

• Confirm from the diagram which way the arrow on the bridge reference potentiometer is pointing and whether that corresponds to a more ahead or more astern order. • Verify which polarity (positive or negative) each function generator is labeled or described as accepting in the problem statement. • Check whether any control-transfer or manual/remote selector in the illustration shows bridge control active or engine-room control active; this determines if a signal can reach either steam valve at all.

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