Walmart Maintenance Assessment 3 — Questions and Answers
Question 1: Which reading on a multimeter indicates a broken (open) circuit when testing continuity?
- No beep / infinite resistance (Correct answer)
- A steady beep
- Zero ohms
- Full battery voltage
Correct answer: No beep / infinite resistance
An open circuit shows no continuity, meaning no beep and infinite resistance.
Question 2: A gearbox shows metal shavings in the oil. This most likely indicates:
- Internal gear or bearing wear (Correct answer)
- Correct operation
- Too much paint
- A loose floor mat
Correct answer: Internal gear or bearing wear
Metal particles in lubricant signal abrasive wear of internal components.
Question 3: The correct fire extinguisher class for an electrical fire is:
- Class C (Correct answer)
- Class A
- Class K
- Class D
Correct answer: Class C
Class C extinguishers are rated for energized electrical equipment fires.
Question 4: When tightening bolts on a flange, the recommended pattern is:
- A star or crisscross sequence (Correct answer)
- All on one side first
- Random order
- Only the top two
Correct answer: A star or crisscross sequence
A crisscross pattern distributes load evenly and prevents warping or leaks.
Question 5: A pneumatic tool runs weakly. The first thing to check is:
- Air pressure and supply line (Correct answer)
- The paint color
- The serial number
- The warranty card
Correct answer: Air pressure and supply line
Weak pneumatic performance usually stems from low air pressure or a restricted line.
Question 6: Which of the following best reduces the risk of a slip-and-fall during maintenance?
- Cleaning up spills and using wet floor signs (Correct answer)
- Leaving tools on the floor
- Working in the dark
- Removing handrails
Correct answer: Cleaning up spills and using wet floor signs
Prompt spill cleanup and warning signs reduce slip-and-fall hazards.
Question 7: What is the purpose of a machine guard?
- To protect workers from moving parts (Correct answer)
- To increase machine speed
- To store spare oil
- To decorate the equipment
Correct answer: To protect workers from moving parts
Guards shield operators from contact with hazardous moving components.
Which reading on a multimeter indicates a broken (open) circuit when testing continuity?