Diesel-electric

High school (ages 12+)
Transportation

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/diesel-electric

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary power generation?Internal combustion diesel engine driving an electrical generator (alternator or dynamo)
2. What is the propulsion mechanism?Electric traction motors (DC or AC) connected to wheelsets
3. What is a diesel‑electric train?A diesel‑electric train uses a diesel engine to turn a generator that makes electricity. The electricity powers motors that turn the train’s wheels.
4. Why did people switch from steam to diesel‑electric trains?Diesel‑electric trains are cleaner, use less water, need less maintenance, and can run longer without refueling. This makes them more efficient and flexible than steam engines.

Prime Mover: The primary engine or motor that generates the power for a machine or vehicle.
Alternator: A type of electrical generator that produces alternating current (AC).
Adhesion: The grip between the train's wheels and the rails, crucial for traction and preventing slippage.
Catenary System: A network of overhead wires used to supply electricity to electric trains.