TRIVIA QUIZ FOR NOVEMBER 26 -- ANSWERED

[Anonymous]

Why does a trolleybus (a/k/a trolleycoach) use two trolley poles instead of one, as on vintage streetcars?

1. The trolleybus requires more power.

2. Rubber-tired trolleybus is not grounded; the second pole is for grounding.

3. Newer design keeps better contact with catenary wires.

4. Harmonically-tuned poles are for noise reduction purposes.


Hope y'all don't mind one li'l wireheaded question?

Lotus, I hope this is OK with you.

Allen Smalling

[csmith9474]

What a polarizing question.[;)]

[trainboyH16-44]

Exactly.Use them for different directions.
And please suport Lotus098, he has been given the boot.

[joseph2]

2

[Texas Zepher]

Well, electricity needs a complete circuit so it needs two conductors and has no rail. I don't know if I would call it "grounding" or not.

#2