CET Modernization & Upgrades 4

Question 1

What does 'selective modernization' mean in the context of elevator upgrades?

Accepted Answer

Upgrading specific components while retaining other existing parts that still meet code

Answer

Selective modernization targets specific components—such as controls or doors—while leaving compliant existing components in place to control cost.

Question 2

When a new microprocessor controller is installed during modernization, what must be provided in the machine room for the new system?

Accepted Answer

Updated wiring diagrams reflecting the as-installed condition

Answer

ASME A17.1 requires current, accurate wiring diagrams to be available in the machine room so technicians can safely service the system.

Question 3

During a traction elevator modernization, the existing wire rope is found to have broken wires within the allowable limit but shows significant corrosion. What is the correct action?

Accepted Answer

Replace the ropes because corrosion is an independent disqualifying condition

Answer

Corrosion is an independent condition requiring rope replacement, regardless of broken wire count, because it compromises tensile strength unpredictably.

Question 4

A building owner wants to add destination dispatch during a modernization. Which existing system must be replaced or significantly modified to support this feature?

Accepted Answer

The hall call fixtures and controller

Answer

Destination dispatch replaces conventional hall call buttons with key-pad or touchscreen hall fixtures and requires a new group controller to manage assignments.

Question 5

What is the purpose of a 'ride quality analysis' conducted before and after a traction elevator modernization?

Accepted Answer

To measure vertical and horizontal vibration levels to ensure passenger comfort and proper equipment operation

Answer

Ride quality analysis using vibration meters documents baseline and post-modernization performance to confirm the upgrade meets comfort and mechanical standards.

(CET) Certified Elevator Technician Practice Test

(CET) Certified Elevator Technician Practice Test

CET Modernization & Upgrades 4