![There are dozens of railroad crossings
you have to blow the whistle for.
There are dozens of railroad crossings
you have to blow the whistle for.](https://content2.mcqstudy.com/ss/tbbt-10-15-00:06:22.174.jpeg)
There are dozens of RAILROAD crossings
you have to blow the whistle for.
The Big Bang Theory Season 10, Episode 15
![...a hot dog stand in a different
converted railroad dining car.
...a hot dog stand in a different
converted railroad dining car.](https://content2.mcqstudy.com/ss/tbbt-4-6-00:03:23.671.jpeg)
...a hot dog stand in a different
converted RAILROAD dining car.
The Big Bang Theory Season 4, Episode 6
![...an outdoor museum
featuring 43 railroad engines, cars...
...an outdoor museum
featuring 43 railroad engines, cars...](https://content2.mcqstudy.com/ss/tbbt-4-6-00:03:07.684.jpeg)
...an outdoor museum
featuring 43 RAILROAD engines, cars...
The Big Bang Theory Season 4, Episode 6
![...a hot dog stand
in a converted railroad dining car.
...a hot dog stand
in a converted railroad dining car.](https://content2.mcqstudy.com/ss/tbbt-4-6-00:03:01.848.jpeg)
...a hot dog stand
in a converted RAILROAD dining car.
The Big Bang Theory Season 4, Episode 6
![In 1944, the Pacific Railroad
built number 6131,
In 1944, the Pacific Railroad
built number 6131,](https://content2.mcqstudy.com/ss/tbbt-7-15-00:10:53.090.jpeg)
In 1944, the Pacific Railroad
built number 6131,
The Big Bang Theory Season 7, Episode 15