OB AFE 3.0 MANAGERS GUIDE EXAM QUESTIONS

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OB AFE 3.0 MANAGERS GUIDE EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -14 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Rebin Wall

Answer:

The Rebin Wall is a collection of Chutes grouped together and associated with a specific Induct Station and lane off of the AFE Sorter. NonSort AFE systems have 75 Chutes per wall, while Sortable sites have between 122 and 166 Chutes per wall. Each Rebin Wall represents the smallest possible chunk of AFE capacity.

Question 2: Pack

Answer:

Shipments are moved into the Pack Chute once completed. Here, the push-to-light button will light to inform Pack associates that the shipment is available, with different colors used to prioritize the shipment as needed. After scanning the barcode, the items are removed from the Chute and taken to the Pack Station, where the items are confirmed, boxed, and sent to SLAM.

Question 3: Rebin Chute

Answer:

Items are placed into the Rebin Chutes to wait until all items for the shipment have arrived, then the shipment is ready to move on to be packed out. Chutes have physical dimensions and placement that are also mapped virtually. Each chute is configured to be able to accept shipments of specific sizes and types (which will be reviewed in detail in the Rebin section of the guide).

Question 4: AFE Sorter

Answer:

After the merge, the trays are now sent to the high speed sorter. There will be one lane off of the sorter for each of the Rebin walls where the items will be paired up to complete shipments. There is also one lane used for Jackpot and Problem Solve. In most cases, the trays will successfully divert off of the Sorter to the appropriate Rebin wall. There are two common causes of failure to divert. First, if the lane is full, the tray obviously cannot divert. Second, if there are many consecutive trays in a row going to the same divert, the sorter logic will prevent them all from releasing simultaneously to avoid a jam. In both cases, the tray will recirculate and try again, and if the lane remains full the tray will eventually be sent to Jackpot. Other reasons for a failure to divert include unscannable barcodes, communication errors, and jams.

Question 5: Zipper Merge

Answer:

The takeaway lanes from Induct that lead into the AFE Sorter. The first step on this sorter is the Zipper Merge, also known as the "Induct Merge" or "3:1 merge". Here the full trays from multiple induct stations (usually 3, but occasionally 2 or 4) are fed onto the same conveyor. Also, the Zippers can become a bottleneck if 3 high performing Induct associates are feeding into the same Zipper merge. Most Zippers and the conveyors leading away from them are rated at 2700 trays per hour, although this may vary by site.

Question 6: Discharge Lane

Answer:

Trays are pushed off of the AFE Sorter and onto a conveyor that leads to the Rebin wall. The section of this conveyor between the Sorter and the first photo eye is called the Discharge Lane. It is typically curved to assist with the significant reduction in speed as a tray comes off the main sorter. The distance between the sorter and the first photo eye, along with the speed of the trays determines the maximum number of consecutive trays that can go to any given lane. Most sites have this set at 6 trays.Jams in this area are somewhat frequent, and unlike other areas like the Zippers or rebin stations, jams here may shut down the entire AFE. There are "Long Range" photo eyes that reach the length of the AFE, and when a jammed tray blocks that photo eye it can stop the sorter.

Question 7: Routing Sorter

Answer:

After items are picked into a tote, the tote is conveyed to the main routing sorter. From the sorter there are multiple outlets that lead to AFE - typically one for every two walls. When a tote destined for AFE is scanned on the routing sorter, software checks to see which of these lanes is available and will send the work evenly among the active lanes.

Question 8: Induct

Answer:

Totes are routed down a lane which usually will feed into two Induct stations. Totes will stop at a T intersection, and totes must be moved to left or right to reach the induct station. In sites where this left/right decision is automated, there is a small control panel at each T intersection which will send trays to left or right, or split the totes to both lanes. In most sites this is done manually as associates move between stations.

Question 9: What happens in AFE at a high level

Answer:

items are picked into the AFE process path, singulated, conveyed to a rebin station, paired with the remaining items of the shipment, then packed out and sent to SLAM.

Question 10: Rebin Station

Answer:

Approximately 5 minutes after the item is placed into an AFE tray at Induct, it will arrive at a Rebin Station. Once the item is virtually moved into its chute, the now empty tray is released from the Rebin Station and conveyed to the corresponding Induct Station. There can only be 12 - 20 trays between Rebin and Induct, which is only about one minute of supply. When Induct associates are performing faster or slower than the Rebin associates, this imbalance can cause downtime. Induct associates cannot process without empty trays, and Rebin associates cannot process while their takeaway conveyor is full. At the Rebin Station, a tray with product is presented to the associate. The associate will take the product from the tray, press the button on the station, and turn to place the product into the Rebin wall. While this is happening, the newly emptied tray will be ejected from the Rebin Station and sent towards Induct.Each Rebin Station has a conveyor feeding into and out of the station; a hand scanner for exception handling; a display unit used to communicate the current step of the process; a push to light button. The majority of Rebin stations actually have dual displays, with one designated "red" and the other "green".The newest systems have 3 separate stations, but with only one display per station. These are designated "red", "magenta" and "green".

Question 11: Amazon Fulfillment Engine (AFE)

Answer:

is a semi-automated sortation system used to process multiple-item shipments (multis).Question 12: AFE Categorization - CCC - Cost and Capacity Categorization Software

Answer:

This software looks at the properties of a shipment and the current state of a site's backlog and decides which process path the shipment should belong in. It does this to balance work between batchy and AFE paths in Legacy Sortable sites as well as between the two AFE systems in AR Sortable sites.

Question 13: Trays

Answer:

The AFE utilizes uses a closed loop system of containers deemed "Trays". These containers are either 18x18" or 18x24" depending on site. Each tray will contain a single item only, and will be directed to a specific rebin station. Each tray has a unique identifier, using the prefix "st" and between 5 and 10 digits.

Question 14: Main Merge

Answer:

After the trays are through the Zipper Merges, they will be routed to the Main Merge, also known as "7-1" or "9-1" merge. At the end of each lane, trays are fed forward and loaded into "slugs". There is also a lane that feeds recirculation back into the main merge after the AFE routing sorter. As each lane completes a slug, the slug is released onto the main merge. This process is the most constrained mechanical system in AFE and, if all is running perfectly, it will dictate your max volume.