Referring to the illustration of a DC...

Question 1 / 2707066636eed28f7522a1c51d9b3

Question 1 of 2707066636eed28f7522a1c51d9b3

Referring to the illustration of a DC diesel-electric drive system, what type of DC propulsion motors are used? Illustration EL-0141

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Question 1 of 27070

Referring to the illustration of a DC diesel-electric drive system, what type of DC propulsion motors are used? Illustration EL-0141

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

🔍 Key Concepts

• Trace how the motor field windings are connected compared to the armature (propulsion armature loop) in the diagram. • Notice which components are fed from the controlled rectifier and which are fed from the non-controlled rectifier. • Recall the difference between shunt-wound and series-wound DC motors in terms of how the field coils are energized.

💭 Think About

• Follow the thick propulsion armature loop and ask: are the field windings in that same series path, or are they supplied separately? • Look at the labels ‘Motor Field’, ‘Field Rheostat’, and the rectifier symbol on the right: what does that tell you about how the field current is controlled? • Compare the connection of the motor fields to the source marked ‘Non-Controlled Rectifier’ with the text in the answer choices. Which wording matches that arrangement?.

✅ Before You Answer

• Verify whether the motor field leads physically join the armature loop or branch off to a separate supply. • Confirm which rectifier (controlled vs non-controlled) is feeding the motor field circuits in the illustration. • Eliminate any option that describes the field being in series with the armature, if the diagram does not show that series connection.

Question 1 of 27070

Referring to the illustration of a DC diesel-electric drive system, what type of DC propulsion motors are used? Illustration EL-0141

shunt wound where the field is wired in parallel with the armature

shunt wound where the field is separately excited from a non-controlled rectifier

shunt wound where the field is separately excited from a controlled rectifier

series wound where the field is wired in series with the armature

Question 1 / 2707066636eed28f7522a1c51d9b3

Question 1 of 2707066636eed28f7522a1c51d9b3

Referring to the illustration of a DC diesel-electric drive system, what type of DC propulsion motors are used? Illustration EL-0141

Back

Question 1 of 27070

Referring to the illustration of a DC diesel-electric drive system, what type of DC propulsion motors are used? Illustration EL-0141

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