Examination Practice Questions And

Illinois Bulldozer Operator Licensing Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary function of a bulldozer?
• Transport materials over long distances
• Push, spread, or remove material on a construction site
• Drill holes in the ground
• Lift and carry heavy loads

Rationale: Bulldozers are designed mainly to push and move soil,

gravel, or debris, not to transport or lift like cranes or trucks.

• What type of blade is best suited for fine grading?
• Straight blade
• Angle blade 1 / 4

• Universal blade
• U-blade

Rationale: Angle blades allow precise side-to-side movement, which

is essential for fine grading.

• Which track type provides the best stability on soft ground?
• Narrow steel tracks
• Rubber tracks
• Wide steel tracks
• Crawler belts

Rationale: Wide steel tracks distribute weight over a larger surface

area, reducing ground pressure on soft soils.

• Before starting a bulldozer, what should an operator inspect first?
• Blade condition
• Hydraulic oil level
• Surrounding work area and machine components
• Fuel gauge

Rationale: Safety begins with inspecting the environment and the

machine to prevent accidents.

• What is the main hazard when operating a bulldozer on a slope?
• Hydraulic failure
• Tip-over or rollover
• Excessive fuel consumption
• Blade wear 2 / 4

Rationale: Operating on slopes increases the risk of machine

instability and tipping.

• Which of the following is a common maintenance task for bulldozers?
• Changing tires
• Lubricating tracks and joints
• Replacing conveyor belts
• Cleaning and greasing moving parts

Rationale: Regular lubrication prevents wear and ensures smooth

operation of moving components.

• What should you do if the bulldozer engine overheats?
• Increase throttle
• Continue operation
• Shut down the engine and allow it to cool
• Drain fuel immediately

Rationale: Continuing to operate an overheated engine can cause

permanent damage; cooling is necessary.

• Which bulldozer attachment is primarily used for cutting through hard

soil?

• Ripper
• Ripper
• Blade
• Fork 3 / 4

Rationale: Rippers break up compacted soil or rock, making it easier

for the blade to move material.

9. When pushing a load, the bulldozer blade should be:

• Fully raised
• Partially lowered
• Tilted backward
• Locked in transport position

Rationale: Lowering the blade slightly ensures better contact with

material and efficient pushing.

• How often should daily inspections be performed?
• Once a week
• Once a month
• Every day before operation
• Only when the machine shows a problem

Rationale: Daily inspections detect potential hazards or maintenance

issues before they become serious.

• What is the recommended method to prevent track slippage on

ice?

• Accelerate quickly
• Turn sharply
• Use chains or reduce speed
• Lift the blade
• / 4