Walmart Maintenance Test Question and Answers 2

Question 1

What is the recommended air filter replacement frequency for a commercial rooftop HVAC unit in a retail environment?

Accepted Answer

Every 30-90 days depending on conditions

Answer

Once a year

Answer

Only when the unit stops working

Answer

Every 5 years with the unit replacement

Question 2

When using a multimeter to check for voltage in a 120V outlet, between which points should you place the probes?

Accepted Answer

Hot (narrow slot) and neutral (wide slot) or hot and ground

Answer

Both probes in the hot slot

Answer

Both probes in the ground hole

Answer

Neutral and ground only

Question 3

A belt-driven exhaust fan is making a squealing noise. What is the most probable cause?

Accepted Answer

The belt is loose, worn, or glazed

Answer

The fan blades are bent

Answer

The exhaust ductwork is clogged

Answer

The motor is running backwards

Question 4

What is the purpose of a backflow preventer in a commercial plumbing system?

Accepted Answer

To prevent contaminated water from flowing back into the potable water supply

Answer

To increase water pressure

Answer

To reduce water usage

Answer

To heat water more efficiently

Question 5

During a routine inspection, you notice corrosion on the battery terminals of an emergency generator. What should you do?

Accepted Answer

Clean the terminals with a baking soda solution, apply anti-corrosion compound, and tighten connections

Answer

Replace the entire generator

Answer

Ignore it since the generator only runs during emergencies

Answer

Pour water on the terminals to rinse them

Question 6

What does the acronym PPM stand for in the context of maintenance scheduling?

Accepted Answer

Planned Preventive Maintenance

Answer

Parts Per Million

Answer

Personal Protection Methods

Answer

Power Plant Management