Which classes have a maximum speed of 1 foot per second for gate operation?

• A. Class I only
• B. Class II only
• C. Class II and Class I
• D. Class III and Class IV

Answer: (C)

The speed limit being tested is the maximum gate operation speed tied to each class. For both Class I and Class II, the standard sets the maximum at 1 foot per second, reflecting safety-focused operation in environments with more pedestrian or vehicle interaction. Higher classes (III and IV) are designed for more demanding or larger installations and allow speeds above 1 ft/s, so they don’t fit the 1 ft/s limit.

So, the correct understanding is that both Class I and Class II gates share the 1 ft/s maximum, which is why the option including both of them is the right choice.