Environmental Modification & Accessibility Design Flashcards

Under ADA Standards, what is the maximum slope for an accessible route in a site arrival area?

Answer: 1:20 (5%)

Accessible routes must not exceed 1:20 (5%) slope; steeper slopes are ramps requiring handrails and landings.

A grab bar installed in a bathtub transfer configuration must support a minimum static load of:

Answer: 250 lbs

ADA and ICC A117.1 require grab bars to withstand a minimum 250-pound static load in any direction.

When modifying a doorway for wheelchair access, the minimum clear width required by ADA Standards is:

Answer: 32 inches

ADA requires a minimum 32-inch clear opening width measured between the face of the door and the opposite stop when the door is open 90 degrees.

In an accessible kitchen modification, what is the maximum height for a reach range to a side-approach shelf?

Answer: 48 inches

ADA Standards set the maximum high side reach at 48 inches above the floor for a side approach.

Which flooring characteristic is MOST critical when selecting materials for a dementia-accessible environment?

Answer: Low-contrast, non-patterned surface to reduce spatial confusion

High-contrast or busy patterns can cause perceptual disturbances in individuals with dementia; low-contrast uniform flooring reduces confusion.

A CEAC consultant is assessing a home for a client with low vision. What minimum illumination level is recommended for task areas such as kitchen counters?

Answer: 50 foot-candles

Task areas for individuals with low vision typically require a minimum of 50 foot-candles to ensure adequate visibility for detailed activities.

When installing a vertical platform lift (wheelchair lift) in a residential setting, which code primarily governs its safety requirements in the US?

Answer: ASME A18.1 (Safety Standard for Platform Lifts and Stairway Chairlifts)

ASME A18.1 governs vertical platform lifts and stairway chairlifts in the United States, covering construction, installation, and inspection.