, Question 1
A vertical platform lift installed in a public facility has a rated load of 750 lb
and a travel distance of 12 ft. According to ASME A18.1, which of the
following safety features is mandatory for this installation?
A. Automatic fire-rated door assembly
B. Emergency battery backup for lowering
C. Overhead obstruction sensing device
D. Manual emergency lowering valve
Correct Answer: C - Overhead obstruction sensing device
RATIONALE
ASME A18.1 requires an overhead obstruction sensing device for
vertical platform lifts with travel exceeding 6 ft to prevent crushing
hazards. Fire-rated doors are not required unless specified by the
building code, battery backup is optional, and manual lowering is not
mandated for this configuration.
Question 2
In a mixed-use building, a platform lift serves a stage that is 24 inches above
the main floor. Under ADA Standards, which of the following is a compliant
approach for providing accessible route?
A. A ramp with a slope of 1:10
B. A platform lift with a clear floor space of 30 in. by 48 in.
C. A stairway with handrails on both sides
D. A vertical platform lift with a maximum rise of 24 in.
Correct Answer: B - A platform lift with a clear floor space of 30
in. by 48 in.
Page 2
, RATIONALE
ADA Standards require platform lifts to have a clear floor space of at
least 30 in. by 48 in. for wheelchair access. Ramps with 1:10 slope are
not compliant for this rise without landings; stairways are not
accessible; and vertical platform lifts are limited to 12 ft but must still
meet clear space requirements.
Question 3
A platform lift is installed in a historic building where the required clear floor
space cannot be met. Which of the following exceptions in ASME A18.1
allows a reduction in clear floor space?
A. When the lift is used solely for maintenance access
B. When the building is listed on the National Register of Historic Places
C. When the lift travel is less than 24 inches
D. When the lift is installed outdoors
Correct Answer: B - When the building is listed on the National
Register of Historic Places
RATIONALE
ASME A18.1 provides an exception for historic buildings where
compliance with clear floor space is structurally infeasible, provided
equivalent facilitation is achieved. Other options do not qualify for
reduced clear floor space under the code.
Question 4
During an inspection, a platform lift's suspension chain shows signs of
elongation beyond the manufacturer's limit. According to ASME A18.1, what
is the required action?
A. Adjust the chain tension and continue use
B. Replace the chain immediately
C. Lubricate the chain and re-inspect in 6 months
Page 3
A vertical platform lift installed in a public facility has a rated load of 750 lb
and a travel distance of 12 ft. According to ASME A18.1, which of the
following safety features is mandatory for this installation?
A. Automatic fire-rated door assembly
B. Emergency battery backup for lowering
C. Overhead obstruction sensing device
D. Manual emergency lowering valve
Correct Answer: C - Overhead obstruction sensing device
RATIONALE
ASME A18.1 requires an overhead obstruction sensing device for
vertical platform lifts with travel exceeding 6 ft to prevent crushing
hazards. Fire-rated doors are not required unless specified by the
building code, battery backup is optional, and manual lowering is not
mandated for this configuration.
Question 2
In a mixed-use building, a platform lift serves a stage that is 24 inches above
the main floor. Under ADA Standards, which of the following is a compliant
approach for providing accessible route?
A. A ramp with a slope of 1:10
B. A platform lift with a clear floor space of 30 in. by 48 in.
C. A stairway with handrails on both sides
D. A vertical platform lift with a maximum rise of 24 in.
Correct Answer: B - A platform lift with a clear floor space of 30
in. by 48 in.
Page 2
, RATIONALE
ADA Standards require platform lifts to have a clear floor space of at
least 30 in. by 48 in. for wheelchair access. Ramps with 1:10 slope are
not compliant for this rise without landings; stairways are not
accessible; and vertical platform lifts are limited to 12 ft but must still
meet clear space requirements.
Question 3
A platform lift is installed in a historic building where the required clear floor
space cannot be met. Which of the following exceptions in ASME A18.1
allows a reduction in clear floor space?
A. When the lift is used solely for maintenance access
B. When the building is listed on the National Register of Historic Places
C. When the lift travel is less than 24 inches
D. When the lift is installed outdoors
Correct Answer: B - When the building is listed on the National
Register of Historic Places
RATIONALE
ASME A18.1 provides an exception for historic buildings where
compliance with clear floor space is structurally infeasible, provided
equivalent facilitation is achieved. Other options do not qualify for
reduced clear floor space under the code.
Question 4
During an inspection, a platform lift's suspension chain shows signs of
elongation beyond the manufacturer's limit. According to ASME A18.1, what
is the required action?
A. Adjust the chain tension and continue use
B. Replace the chain immediately
C. Lubricate the chain and re-inspect in 6 months
Page 3
