QEI - Qualified Elevator Inspector Car and Counterweight Assemblies Questions and Answers — Questions and Answers
Question 1: During a routine inspection of a traction elevator, you observe that the counterweight guard is missing several bolts and appears loose. According to ASME A17.1, what is the primary safety concern this condition presents?
- Increased energy consumption due to air turbulence.
- Potential for the counterweight to strike the car if it derails.
- Unnecessary noise and vibration during operation.
- Risk of entanglement or injury to personnel working in the pit. (Correct answer)
Correct answer: Risk of entanglement or injury to personnel working in the pit.
ASME A17.1 requires counterweight guards to protect against accidental contact. A loose or incomplete guard poses a significant risk of entanglement or crushing injury to any inspector or maintenance personnel who may be in the pit while the elevator is in motion.
Question 2: An inspector is measuring the horizontal clearance between the car platform sill and the hoistway enclosure. Which of the following measurements would be a violation of the standard running clearance specified in ASME A17.1?
- 0.5 inches
- 1.0 inch
- 1.25 inches
- 2.0 inches (Correct answer)
Correct answer: 2.0 inches
ASME A17.1 generally limits the clearance between the car platform sill and the hoistway enclosure. While specific conditions can alter requirements, a 2.0-inch gap typically exceeds the maximum allowable running clearance, which is often cited as being between 1/2 inch and 1-1/2 inches, posing a potential hazard.
Question 3: A QEI is inspecting a newly installed counterweight assembly. Which of the following is a critical inspection point to ensure compliance with safety standards?
- The color of the counterweight filler blocks matches the manufacturer's specifications.
- The counterweight frame is equipped with a data plate indicating its total weight.
- All individual weights are secured within the frame by tie rods or another retaining method. (Correct answer)
- The counterweight is polished to a reflective finish to aid in visual inspection.
Correct answer: All individual weights are secured within the frame by tie rods or another retaining method.
According to elevator safety codes, the individual filler weights of a counterweight must be securely contained within the frame. This is typically achieved with tie rods that pass through all the weights and are secured at both ends. This prevents the weights from shifting or falling out, which could cause a catastrophic failure.
Question 4: During an inspection from the car top, you are evaluating the required refuge space. Which of the following scenarios would be a code violation?
- The top-of-car clearance allows for a refuge space compliant with the minimum vertical dimensions.
- A permanently installed light fixture is located within the designated refuge space area. (Correct answer)
- The stop switch on the car top is easily accessible from the refuge space location.
- The car is traveling at its rated speed of 200 ft/min with adequate top clearance.
Correct answer: A permanently installed light fixture is located within the designated refuge space area.
The refuge space on top of an elevator car must be a clear, unobstructed area to protect personnel. No equipment, including permanent fixtures like lights or junction boxes, should be installed in the area designated as the refuge space, as it would impede its purpose in an emergency.
Question 5: Which component of the car assembly is primarily responsible for engaging the governor rope to initiate a safety stop in an overspeed condition?
- The car door operator.
- The roller guides.
- The safety mechanism (safeties). (Correct answer)
- The car frame (sling).
Correct answer: The safety mechanism (safeties).
The safety mechanism, often referred to as the car safeties, is the component that is mechanically linked to the speed governor. When the governor detects an overspeed condition, it trips, causing the governor rope to activate the safety mechanism, which then clamps onto the guide rails to stop the car.
Question 6: An elevator car's interior panels are being replaced. According to ASME A17.1, what is a primary requirement for the materials used for the car enclosure and lining?
- They must be made of a lightweight, sound-absorbing material.
- They must be a dark, non-reflective color to reduce glare.
- They must meet specific fire-resistance and smoke-development ratings. (Correct answer)
- They must be sourced from a single, certified manufacturer.
Correct answer: They must meet specific fire-resistance and smoke-development ratings.
ASME A17.1 places strict requirements on the fire safety of materials used inside an elevator car. The car enclosure, including wall panels and floor coverings, must be made of materials that meet specific standards for flame spread and smoke development to ensure passenger safety in the event of a fire.
QEI - Qualified Elevator Inspector Car and Counterweight Assemblies Questions and Answers
During a routine inspection of a traction elevator, you observe that the counterweight guard is missing several bolts and appears loose.
According to ASME A17.1, what is the primary safety concern this condition presents?