![I bought an N-gauge locomotive.
I bought an N-gauge locomotive.](https://content2.mcqstudy.com/ss/tbbt-5-3-00:17:41.613.jpeg)
I bought an N-gauge LOCOMOTIVE.
The Big Bang Theory Season 5, Episode 3
![and I get to operate an actual locomotive.
and I get to operate an actual locomotive.](https://content2.mcqstudy.com/ss/tbbt-10-15-00:04:56.297.jpeg)
and I get to operate an actual LOCOMOTIVE.
The Big Bang Theory Season 10, Episode 15
![U.S. locomotive
ever built?
U.S. locomotive
ever built?](https://content2.mcqstudy.com/ss/tbbt-7-15-00:10:42.295.jpeg)
U.S. LOCOMOTIVE
ever built?
The Big Bang Theory Season 7, Episode 15
![An Alcoa FA-4 diesel locomotive
An Alcoa FA-4 diesel locomotive](https://content2.mcqstudy.com/ss/tbbt-7-15-00:01:45.171.jpeg)
An Alcoa FA-4 diesel LOCOMOTIVE
The Big Bang Theory Season 7, Episode 15