dummyengine
nounUK /ˈdʌmiˌɛndʒɪn/
US /ˈdʌmiˌɛndʒɪn/
A dummy engine is a fake engine that only looks real.
The toy train has a dummy engine that does not move on its own.
OTHER MEANINGS
2. A practice or training engine used to learn how machines work without risk.
Students took apart a dummy engine to learn the parts.
3. A computer program that pretends to be an engine for testing.
The game uses a dummy engine to test new physics.
4. A display model of an engine shown in a museum or store.
The museum has a dummy engine you can touch.