Amazon Maintenance Technician Preventive Maintenance & Lubrication

Question 1

What is the main goal of a Preventive Maintenance (PM) program in an Amazon fulfillment center?

Accepted Answer

Detect and correct potential failures before unplanned downtime occurs

Answer

Reduce equipment purchase costs

Answer

Eliminate the need for spare parts inventory

Answer

Increase the number of maintenance technicians

Question 2

Which lubrication method is BEST suited for hard-to-reach bearings on continuously running conveyor systems?

Accepted Answer

Auto-lubricator (single-point or multi-point) that delivers grease during operation

Answer

Manual grease gun applied during shutdowns

Answer

Splash lubrication from an oil bath

Answer

Dry lubricant spray applied weekly

Question 3

What does the NLGI grade number indicate on a grease specification label?

Accepted Answer

The grease consistency or thickness

Answer

The grease's operating temperature range

Answer

The additive package type

Answer

The base oil viscosity in cSt

Question 4

Over-greasing a bearing can cause which of the following problems?

Accepted Answer

Bearing overheating due to churning and increased friction

Answer

Insufficient lubrication film

Answer

Corrosion of bearing races

Answer

Under-loading of rolling elements

Question 5

What information should be recorded when completing a PM work order in Amazon's CMMS?

Accepted Answer

Equipment ID, technician ID, tasks performed, parts used, condition notes, and completion time

Answer

Only the date completed

Answer

Only parts replaced

Answer

Only whether the task passed or failed

Question 6

What does MTBF stand for, and why is it important in PM planning?

Accepted Answer

Mean Time Before Failure — helps set PM intervals based on average component life

Answer

Maintenance Task Breakdown Form — used to write procedures

Answer

Maximum Torque Before Fracture — used in fastener specifications

Answer

Minimum Temperature Before Freezing — used in HVAC scheduling