electric motors
dc series motor
It is a Direct Current Motor which is wound and creates a magnetic field when energized and does not use a permanent magnet. Jeff S.
They use diesel engines.
Most modern helicopters use jet engines.
Except for a few turbine driven locomotives, they won't. Most locomotives use diesel engines to drive a generator, which feeds power to the traction motors.
a railway is a track with engines it can be a mountain railway or just a railway * Added - A railway is a fixed guideway system (vehicles cannot leave the track) and can be powered by gravity, animals (including people), stationary engines, or locomotives (any vehicle that is self propelled). A train is a "consist" of multiple vehicles designed to move on the railway. As the term is used in conventional use today, a railway includes the track and all other wayside equipment, all the vehicles, stations, shops, and control centers.
If you mean motor oil, yes.
Most cars this is not a problem, the engines are identical.
Johnson outboards use the model number to determine the year model of their engines.
Depends on which engine it had... gas and diesel engines were available for that vehicle.
No. You need a specialized engine for that. These engines can burn other oils too, like burnt motor oil, vegetable oil, etc.
DC motors are not common in industry. However traction motors are one such main DC motor application. There are many tools, toys, drones, which use DC motors run by batteries.