(PL) Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary purpose of a platform lift?
a) To transport heavy equipment
b) To move personnel and mobility devices between floors
c) To lift construction materials
d) To serve as a decorative feature
b) To move personnel and mobility devices between floors
Platform lifts are designed primarily to transport people, including
those in wheelchairs, safely between floors.
2. According to Michigan regulations, what is the maximum rise for a
residential platform lift without a permit?
a) 24 inches
b) 30 inches
c) 48 inches
d) 60 inches
c) 48 inches
Platform lifts with a rise over 48 inches typically require a permit
due to safety and inspection requirements.
3. Which safety feature prevents a platform lift from moving when
the doors are open?
, a) Emergency stop
b) Interlock switch
c) Limit switch
d) Hydraulic override
b) Interlock switch
The interlock switch ensures the lift cannot operate unless the
doors are fully closed, preventing accidents.
4. What is the recommended maximum speed for a platform lift
used in a residential setting?
a) 10 feet per minute
b) 15 feet per minute
c) 30 feet per minute
d) 50 feet per minute
c) 30 feet per minute
Residential platform lifts are designed to operate at slower speeds
for safety and stability.
5. Which type of power source is commonly used in platform lifts?
a) Hydraulic
b) Pneumatic
c) Diesel
d) Steam
a) Hydraulic
Hydraulic systems are common in platform lifts because they
provide smooth and controlled motion.
6. What is the minimum platform size required for a wheelchair-
accessible lift?
a) 24 x 36 inches
, b) 30 x 48 inches
c) 36 x 54 inches
d) 40 x 60 inches
b) 30 x 48 inches
This size accommodates most wheelchairs while ensuring safe
operation.
7. How often should a platform lift undergo a full inspection
according to MI regulations?
a) Every 3 months
b) Every 6 months
c) Annually
d) Every 2 years
c) Annually
Annual inspections ensure that all mechanical, electrical, and
safety components remain functional.
8. What device stops the lift if it travels beyond its designed travel
limits?
a) Overload switch
b) Limit switch
c) Interlock
d) Control relay
b) Limit switch
Limit switches prevent the lift from moving past the top or bottom
of its intended travel range.
9. Which condition requires immediate shutdown of a platform lift?
a) Minor noise during operation
b) Platform leveling slightly off
, c) Oil leakage from hydraulic system
d) Normal door operation delay
c) Oil leakage from hydraulic system
Hydraulic oil leaks can cause sudden failure or uncontrolled
descent, posing a major safety hazard.
10. What is the primary code reference for platform lifts in
Michigan?
a) ASME A17.1/CSA B44
b) NFPA 70
c) OSHA 1910
d) IBC 2018
a) ASME A17.1/CSA B44
Platform lifts are regulated under the safety code for elevators and
platform lifts, ASME A17.1.
11. Which safety feature is designed to prevent a lift from
tipping over during operation?
a) Emergency stop
b) Anti-tilt mechanism
c) Interlock switch
d) Platform guard rails
b) Anti-tilt mechanism
Anti-tilt devices stabilize the lift and prevent sudden tipping,
especially in higher-rise installations.
12. What is the maximum load capacity commonly allowed for
residential platform lifts?
a) 300 pounds
b) 500 pounds