1. Which private railway company in Tokyo runs the longest suburban trains? Eidan/TOEI subway with their combined 14 car Namboku/Mita line sets. Odakyu with the 11 car Romance Car sets. Keikyu with 12 cars on their main line. JR East with 15 cars on the Tokaido/Yokosuka lines.

2. The trains of which lines have the highest speeds? (Watch out for that pesky red herring!) JR Chuo line commuter expresses at 130km/h Keikyu Limited Expresses at 120km/h JR Keihin Tohoku line daytime Limited Express services at 120km/h Tobu 'New Red Arrow' services at 120km/h

3. Which line was the first to introduce 'Women Only' cars during late night services? Seibu Shinjuku JR Saikyo JR Yamanote Tokyu Toyoko

4. Which line does not use trains with 6 door cars? Keihin Tohoku Sobu Joban Yokohama

5. Which line has cars with 5 doors for quicker passenger entry/exit? Seibu Shinjuku JR Yamanote Tokyo Metro Hibiya TOEI Shinjuku

6. Which two lines were connected (not physically - a change of platform is required) in December 2002? TOEI Arakawa & Tokyu Setagaya JR Saikyo & JR Keiyo JR Keihin Tohoku & JR Negishi Tokyo Metro Hanzomon & JR Musashino

7. Which of these pairs of lines is not the same gauge? Keikyu Daishi & Keio Inokashira TOEI Shinjuku subway & Tokyu Setagaya JR Tokaido Shinkansen & Tokyo Metro Ginza subway JR Yamanote & Tsukuba Express

8. Which of these pairs of lines do not use the same voltage power supply? Saitama Shin Kotsu (New Shuttle) & Yokohama Shin Kotsu (Kanazawa Seaside Line) Chiba Town Liner (monorail) & TOEI Oedo subway Tokyo Metro Ginza subway & Tokyo Rinkai Shin Kotsu Tokyo Metro Fukutoshin subway & JR Itsukaichi

9. Which of these pairs of lines are connected for thru-running? Keikyu Kuko & JR Narita Tokyu Toyoko & TOEI Hibiya Tobu Isesaki & Tokyu Den'en-toshi Odakyu Odawara & JR Joban

10. Which line did not receive ex-Yamanote line 205 cars? Sendai Senseki line JR Chuo line JR Keiyo line JR Saikyo line