Which type of switch is utilized to detect the position of an elevator?

The correct choice is a limit switch because it is specifically designed to detect the position of an elevator by signaling when the elevator car has reached a certain point in its travel, such as the top or bottom of the hoistway. Limit switches are essential for ensuring that the elevator operates safely and correctly by providing feedback to the control system regarding the elevator's location.

When the elevator reaches these designated positions, the limit switch is activated, which can then either stop the elevator from going further in that direction or trigger other safety mechanisms, thereby preventing accidents. This functionality is crucial in maintaining the elevator's operational integrity and the safety of its passengers.

In contrast, the emergency switch is typically used to halt the elevator in case of an emergency, rather than to detect its position. A control switch allows the user to operate the elevator and select floors but does not necessarily indicate its current position. A toggle switch is generally utilized for a simple on/off operation and lacks the specificity required for understanding an elevator's position in the hoistway.