The harbor tug to which you are assigned has...

Question 1 / 2066636eef28f7522a1c51fc8f

Question 1 of 2066636eef28f7522a1c51fc8f

The harbor tug to which you are assigned has diesel generators fitted with intake and exhaust systems that includes the device as shown in figure "A" of the illustration. What is the name of this device? Illustration MO-0178

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66636eef28f7522a1c51fc8f

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🔍 Key Concepts

• Compare the internal shapes in figure "A" with each choice: lobes, vanes, or a centrifugal impeller wheel. • Think about what drives the device: is it turned by the engine crankshaft (mechanically) or by exhaust gas flow? • Recall that a turbocharger must have both a turbine (exhaust side) and a compressor (air side) on the same shaft.

💭 Think About

• Look closely at figure "A": do you see flat vanes sliding in and out of a rotor, curved blades on a spinning wheel, or a pair of intermeshing rounded rotors? • Ask yourself which option would require an exhaust turbine housing, and whether any exhaust passages are visible in figure "A". • For each answer choice, picture the typical cross‑section: which one best matches the multiple rounded elements shown and the straight-through air path indicated by the arrows?

✅ Before You Answer

• Verify whether figure "A" shows two or more intermeshing rotors (a clue to one specific type of blower). • Confirm that there is no exhaust gas turbine housing or separate exhaust path in figure "A" (that would rule out one option). • Check if the air seems to move around the outside of the rotors in pockets, rather than radially outward from the center like in a centrifugal blower.

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Question 1 of 20

Electric motor-driven centrifugal blower

Engine-driven lobe type rotary blower

Engine-driven vane type rotary blower

Exhaust gas-driven turbocharger

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Question 1 / 2066636eef28f7522a1c51fc8f

Question 1 of 2066636eef28f7522a1c51fc8f

Back

Question 1 of 20

66636eef28f7522a1c51fc8f

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

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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