Final answer:
The number of contact shoes on a SMEE car varies depending on the specific train design and can be found by consulting the manufacturer's specifications or transit authority's fleet information.
Step-by-step explanation:
The SMEE (Surface Mount Equipment) car typically refers to a type of train car used on subway systems, and 'contact shoes' or third-rail shoes are parts of the train's electrical pickup system. Each SMEE car may differ in the number of contact shoes it employs, but generally, trains have one shoe for each truck or bogie. The exact number would depend on the specific design of the train system and the number of trucks on the car. For example, a subway car with two trucks might typically have two contact shoes, one for each truck. To find the precise number of contact shoes on a specific SMEE car, you should refer to the manufacturer's specifications or the transit authority's fleet information.