Question 1

ASME A17.1 requires a full-load, full-speed safety test on a traction elevator at a maximum interval of:

Accepted Answer

ASME A17.1 (and most state codes adopting it) requires a Category 5 (full-load safety test) at 5-year intervals for most traction elevators. Category 1 tests (no-load safety operation test) are performed annually. Category 3 (governor and safety test without load) may be required at different intervals. Always verify local jurisdiction requirements, as some states have different intervals.

Question 2

When performing leveling adjustment on a traction elevator that is stopping 2 inches above the landing, the FIRST step is to:

Accepted Answer

Mis-leveling (stopping above or below the landing) can be caused by multiple factors: incorrect slowdown switch position, encoder/tachometer feedback errors, controller parameter settings, worn brake, or worn ropes causing rope stretch. The proper approach is diagnosis first — identify the root cause before making adjustments. Adjusting slowdown switches without understanding the cause may mask underlying problems.

Question 3

A buffer test on a traction elevator requires the car to strike the buffer at:

Accepted Answer

Buffer tests vary by buffer type. For oil (hydraulic) buffers (required for elevators above 200 FPM), the test is performed at rated speed with rated load. The buffer must return to its extended position within 90 seconds. Solid (spring/polyurethane) buffers are used on lower-speed elevators. Always consult ASME A17.1 and the buffer manufacturer's specifications for the specific test requirements.

Question 4

When should the governor rope on a traction elevator be replaced?

Accepted Answer

Governor ropes should be replaced when wire breaks exceed the code limits (typically 6 broken wires in one rope lay or 3 in one strand), after any safety trip activation, or when corrosion, kinking, or wear is evident. Continued use of a rope that has activated a safety creates fatigue concerns.

Question 5

Elevator guide rail lubrication is critical because:

Accepted Answer

Rail lubrication reduces friction between guide shoes (or rollers) and the rails, extending guide shoe life, preventing rail corrosion, and ensuring smooth, quiet car travel. However, safeties require clean, unlubricated sections of rail in some designs.

Question 6

Before entering an elevator pit, a mechanic must first:

Accepted Answer

Entering the pit requires operating the pit stop switch (which removes power to the drive) and verifying safe conditions. ASME A17.1 requires the pit stop switch to be operated before accessing the pit, preventing the car from descending onto the worker.

Question 7

A periodic oil sample analysis on a hydraulic elevator helps identify:

Accepted Answer

Oil analysis detects contamination (water, metal particles from pump wear, bacterial growth), oxidation products, and viscosity changes. Early detection allows preventive maintenance before a component failure occurs.

Question 8

During an elevator safety test, the car is run into the buffers at rated speed with rated load. What is being verified?

Accepted Answer

Buffer tests (required periodically under ASME A17.1) verify that the buffer absorbs kinetic energy within the deceleration limits specified by code, ensuring passenger safety in a worst-case scenario where the car travels past the lowest landing.

Question 9

The leveling accuracy of an elevator (stopping within a certain distance of the floor) is most directly adjusted by:

Accepted Answer

Floor leveling accuracy is controlled by the positions of hoistway inductors, vanes, or magnets that signal the controller to begin slowdown and then stop at the landing level. Modern controllers allow software adjustment of stopping position.

Question 10

ASME A17.1 requires that elevator hoistway doors be kept in good repair, with self-closing force not exceeding:

Accepted Answer

ASME A17.1 Rule 2.11.8.2 limits hoistway door closing force to 30 pounds and the kinetic energy of the closing door to 2.5 ft-lbs maximum. This prevents doors from injuring passengers who are caught by a closing hoistway door.

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