They run on extremely high voltages both AC and DC. 1500 to 15000 volts is common.
no
Normal car engines will run off a 12 volt supply.
A rail road engine
It depends on how much running experience you have already and how much time you have to train.
Can I run 480 volt , 60 HZ motor at a 380 volt , 60 Hz system?
If you have 12 volt output on the engine it can be done. Hook the engine 12 volt output to the positive side of your meter and ground the other side back to the engine block. When you start the engine the meter will run and when you shut it down the meter stops. Many newer snow blowers that a 12 volt output for lighting whether lighting was put on the blower or not.
It won't run.
Depends on what is plugged into that plug and the current it is drawing.
No, you cannot.
You can but the motor may not run, however you will not burn the motor.
Yes 480 volt electric wiring can be run in emt conduit.
That is probably too much for the circuitry, so it might work but only for a short time.