Texas Landfill Equipment Operator
Certification Practice Exam Questions
And Correct Answers (Verified Answers)
Plus Rationales 2025|2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of daily cover at a landfill?
A. Reduce leachate production
B. Minimize odors and deter pests
C. Increase decomposition rate
D. Maximize available space
Daily cover controls vectors, odors, fires, and windblown litter by
covering the waste with soil or other approved materials.
2. Which type of waste is prohibited in municipal solid waste landfills?
A. Yard trimmings
B. Hazardous waste
C. Food waste
D. Cardboard
Hazardous waste is not allowed in MSW landfills due to risks to
human health and the environment.
,3. What is the maximum allowable slope for a working face in a landfill
for safety?
A. 1:1
B. 3:1
C. 5:1
D. 10:1
A 3:1 slope is generally considered safe and stable for landfill
operations and equipment.
4. The compactor's main function is to:
A. Move soil
B. Cover waste
C. Densify waste
D. Monitor gas levels
Compactors densify the waste to increase landfill life and stability.
5. Leachate is:
A. Clean rainwater
B. Liquid gas byproduct
C. Contaminated liquid from waste
D. Water used to extinguish landfill fires
Leachate is produced when water percolates through waste and
extracts contaminants.
6. What color is typically used to designate hazardous materials?
A. Green
B. Blue
C. Orange
D. Red
Red commonly indicates danger or hazardous material.
7. Which of the following is a vector?
A. Tree root
, B. Rat
C. Plastic bag
D. Concrete block
Vectors are living organisms like rats or flies that spread disease.
8. Why is it important to keep the working face small?
A. It increases job speed
B. It reduces exposure to wind and scavengers
C. It makes the landfill larger
D. It saves diesel
A small working face helps reduce litter, odor, and access for vectors.
9. Which piece of equipment is most commonly used to spread and
compact waste?
A. Bulldozer
B. Landfill compactor
C. Backhoe
D. Dump truck
Landfill compactors are specifically designed to spread and compress
waste efficiently.
10. Landfill gas is primarily composed of:
A. Nitrogen and oxygen
B. Hydrogen and carbon dioxide
C. Methane and carbon dioxide
D. Sulfur and oxygen
Methane and CO2 are the main components of landfill gas from
anaerobic decomposition.
11. What is the required frequency for applying daily cover to
working face waste?
A. Once a week
B. At the end of each operating day
Certification Practice Exam Questions
And Correct Answers (Verified Answers)
Plus Rationales 2025|2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of daily cover at a landfill?
A. Reduce leachate production
B. Minimize odors and deter pests
C. Increase decomposition rate
D. Maximize available space
Daily cover controls vectors, odors, fires, and windblown litter by
covering the waste with soil or other approved materials.
2. Which type of waste is prohibited in municipal solid waste landfills?
A. Yard trimmings
B. Hazardous waste
C. Food waste
D. Cardboard
Hazardous waste is not allowed in MSW landfills due to risks to
human health and the environment.
,3. What is the maximum allowable slope for a working face in a landfill
for safety?
A. 1:1
B. 3:1
C. 5:1
D. 10:1
A 3:1 slope is generally considered safe and stable for landfill
operations and equipment.
4. The compactor's main function is to:
A. Move soil
B. Cover waste
C. Densify waste
D. Monitor gas levels
Compactors densify the waste to increase landfill life and stability.
5. Leachate is:
A. Clean rainwater
B. Liquid gas byproduct
C. Contaminated liquid from waste
D. Water used to extinguish landfill fires
Leachate is produced when water percolates through waste and
extracts contaminants.
6. What color is typically used to designate hazardous materials?
A. Green
B. Blue
C. Orange
D. Red
Red commonly indicates danger or hazardous material.
7. Which of the following is a vector?
A. Tree root
, B. Rat
C. Plastic bag
D. Concrete block
Vectors are living organisms like rats or flies that spread disease.
8. Why is it important to keep the working face small?
A. It increases job speed
B. It reduces exposure to wind and scavengers
C. It makes the landfill larger
D. It saves diesel
A small working face helps reduce litter, odor, and access for vectors.
9. Which piece of equipment is most commonly used to spread and
compact waste?
A. Bulldozer
B. Landfill compactor
C. Backhoe
D. Dump truck
Landfill compactors are specifically designed to spread and compress
waste efficiently.
10. Landfill gas is primarily composed of:
A. Nitrogen and oxygen
B. Hydrogen and carbon dioxide
C. Methane and carbon dioxide
D. Sulfur and oxygen
Methane and CO2 are the main components of landfill gas from
anaerobic decomposition.
11. What is the required frequency for applying daily cover to
working face waste?
A. Once a week
B. At the end of each operating day
