CDC 3e251 Set B Vol. 2
This quiz will cover all URE multiple choice questions from Vol. 2 of the B-Set of Pavements and Construction Equipment Operator 5-Level upgrade course. All questions are taken directly from the UREs and the multiple choice options are the same. Correct answers reflect the correct answers from the CDC themselves and not necessarily the correct answers from the CERTest.
- 1.
When properly equipped, a front end loader can perform tasks associated with all of the following operations except...
- A.
Dozer tasks
- B.
Scraper jobs
- C.
Trailer operations
- D.
Clamshell operations
Correct Answer
C. Trailer operationsExplanation
A front end loader is a heavy equipment machine that is commonly used in construction and earthmoving projects. It is equipped with a large bucket on the front that can be used to scoop, lift, and transport materials. While a front end loader is capable of performing tasks related to dozer tasks, scraper jobs, and clamshell operations, it is not typically used for trailer operations. Trailer operations involve hitching and towing trailers, which is not a function that a front end loader is designed for.Rate this question:
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- 2.
What must you do before performing any maintenance action on a front end loader?
- A.
Put the transmission in nuetral
- B.
Remove all fuel from the fuel system
- C.
Disconnect and cap the hydraulic system
- D.
Turn the loader off and set the parking brake
Correct Answer
D. Turn the loader off and set the parking brakeExplanation
Before performing any maintenance action on a front end loader, it is important to turn the loader off and set the parking brake. This ensures that the machine is not in operation and prevents any accidental movement or engagement of the loader during maintenance. By turning off the loader and setting the parking brake, it creates a safe environment for the maintenance work to be carried out without any risk of injury or damage.Rate this question:
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- 3.
When equipped with a multi-purpose bucket, what function can the front end loader NOT perform?
- A.
Dozer
- B.
Scraper
- C.
Dragline
- D.
Clamshell
Correct Answer
C. DraglineExplanation
A front end loader equipped with a multi-purpose bucket can perform various functions such as dozing, scraping, and clamshelling. However, it cannot perform the function of a dragline. A dragline is a type of excavating equipment that is used for large-scale digging and earthmoving operations. It typically consists of a large bucket that is suspended from a boom and can be dragged along the ground to remove large amounts of material. Unlike a front end loader, a dragline operates differently and requires specialized equipment for its specific function.Rate this question:
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- 4.
What bucket control is used to raise and lower the bucket on a front end loader?
- A.
Lift control
- B.
Clam control
- C.
Bucket control
- D.
Transmission control
Correct Answer
A. Lift controlExplanation
The correct answer is Lift control. Lift control is used to raise and lower the bucket on a front end loader. This control allows the operator to adjust the height of the bucket according to the task at hand, such as loading or unloading materials. By operating the lift control, the operator can effectively control the vertical movement of the bucket, making it an essential feature for efficient and precise operation of a front end loader.Rate this question:
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- 5.
To pick up materials from a stockpile with a front end loader, which method should you use?
- A.
Scoop
- B.
Dozer
- C.
Dragline
- D.
Clamshell
Correct Answer
A. ScoopExplanation
To pick up materials from a stockpile with a front end loader, the most suitable method would be to use the "Scoop" technique. A front end loader is designed to have a bucket or scoop attachment at the front, which allows it to easily scoop up materials from the stockpile. This method is efficient and effective in collecting and transporting materials using the front end loader. It is important to use the appropriate technique to ensure safe and efficient operations.Rate this question:
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- 6.
When loading a dump truck with a front end loader, how can you prevent damaging the sump body of the truck?
- A.
Keep the travel stance short
- B.
Spot the truck to the stockpile
- C.
Dump the first load a little at a time
- D.
Have a spotter positioned on the truck
Correct Answer
C. Dump the first load a little at a timeExplanation
Dumping the first load a little at a time can prevent damaging the sump body of the truck. By gradually releasing the load, the impact and force on the truck's sump body are reduced, minimizing the risk of damage. This approach allows for better control and ensures that the truck's structure is not overwhelmed by the weight and force of a full load all at once.Rate this question:
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- 7.
What type of front end loader bucket should you use when scooping sticky material that has a tendency to stick to the bucket?
- A.
Drag
- B.
Scoop
- C.
Hopper
- D.
Clamshell
Correct Answer
D. ClamshellExplanation
When scooping sticky material that has a tendency to stick to the bucket, a clamshell bucket would be the most appropriate choice. A clamshell bucket has two hinged buckets that can open and close like a clamshell, allowing for easy release of the sticky material. This design helps prevent the material from sticking to the bucket and allows for efficient scooping and dumping.Rate this question:
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- 8.
How should a dump truck be positioned near the stockpile?
- A.
At a left angle to the pile
- B.
At a right angle to the pile
- C.
Centered on the pile
- D.
Behind the pile
Correct Answer
B. At a right angle to the pileExplanation
A dump truck should be positioned at a right angle to the stockpile because this allows for the most efficient and safe loading and unloading of materials. By positioning the truck perpendicular to the pile, it provides the driver with better visibility and maneuverability. This positioning also ensures that the materials are evenly distributed in the truck bed, preventing any potential imbalance or tipping during the loading process.Rate this question:
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- 9.
How should you backfill a trench when using a front end loader with a narrow bucket?
- A.
Move the loader straight into the material
- B.
Raise the bucket about two inches off the ground
- C.
Move the loader rapidly into the material
- D.
Backfill the area from an angle
Correct Answer
D. Backfill the area from an angleExplanation
When using a front end loader with a narrow bucket to backfill a trench, it is recommended to backfill the area from an angle. This approach allows for better control and precision while spreading the material evenly. Backfilling from an angle also helps to prevent excessive compaction of the material and reduces the risk of damaging the surrounding area or infrastructure. It allows the operator to have a clear view of the trench and ensures that the material is distributed evenly along the trench walls.Rate this question:
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- 10.
On a front end loader, in what position would you place the lift-control lever to backdrag the area?
- A.
Float
- B.
Neutral
- C.
Reverse
- D.
Forward
Correct Answer
A. FloatExplanation
To backdrag the area with a front end loader, the lift-control lever should be placed in the "Float" position. This position allows the bucket or attachment to follow the contour of the ground, essentially floating over it. This is useful when backdragging, as it prevents the bucket from digging into the ground and allows for smoother and more controlled movement.Rate this question:
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- 11.
When stockpiliing with a front end loader, what happens when the material is worked too much?
- A.
Segregation takes place
- B.
Larger particles break up
- C.
Excessive tire wear occurs
- D.
The stockpile becomes flat
Correct Answer
A. Segregation takes placeExplanation
When material is worked too much during stockpiling with a front end loader, segregation takes place. This means that the different components of the material, such as larger and smaller particles, separate from each other. This can result in an uneven distribution of the material and can negatively impact its quality and consistency.Rate this question:
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- 12.
Unlike a regular front end loader, what is the advantage of a skid steer loader?
- A.
It does not need to be hauled to the jobsite
- B.
Machine controls react quicker
- C.
It can operate in a smaller area
- D.
It consumes less fuel
Correct Answer
C. It can operate in a smaller areaExplanation
The advantage of a skid steer loader is that it can operate in a smaller area. Unlike a regular front end loader, which requires more space to maneuver, a skid steer loader is designed to easily navigate tight spaces and confined areas. This makes it a more versatile and efficient machine for various construction and landscaping projects.Rate this question:
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- 13.
Where should you look to determine the type of fluid (hydraulic, oil, etc) required on a front end loader?
- A.
AF Form 1800
- B.
Glove compartment
- C.
Technical Order (TO) or owner's manual
- D.
Passenger side door panel
Correct Answer
C. Technical Order (TO) or owner's manualExplanation
To determine the type of fluid required on a front end loader, one should refer to the Technical Order (TO) or owner's manual. These documents provide detailed information about the equipment, including the recommended fluids for its proper functioning. The TO or owner's manual will specify the type of fluid, such as hydraulic fluid or oil, that should be used in the front end loader. It is important to consult these resources to ensure the correct fluid is used, as using the wrong type of fluid can cause damage to the equipment.Rate this question:
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- 14.
On the skid steer loader, what will happen if you remove your hands and feet from the controls?
- A.
The engine die
- B.
The equipment will stop moving
- C.
The engine will return to an idle speed
- D.
The equipment will automatically resume and forward momentum
Correct Answer
B. The equipment will stop movingExplanation
If you remove your hands and feet from the controls of a skid steer loader, the equipment will stop moving. This is because the controls are responsible for operating the loader and controlling its movements. Without any input from the operator, the loader will not be able to continue moving.Rate this question:
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- 15.
To ensure a good sweeping pattern and avoid damage to equipment or bystanders, you should have a broom pattern that is only...
- A.
2-3 feet wide
- B.
2-3 yards wide
- C.
3-4 inches wide
- D.
2-3 inches wide
Correct Answer
D. 2-3 inches wideExplanation
To ensure a good sweeping pattern and avoid damage to equipment or bystanders, the broom pattern should be 2-3 inches wide. A wider pattern may be difficult to control and may not effectively sweep the desired area. A narrower pattern allows for more precision and control, ensuring that the sweeping is done properly without causing any harm or damage.Rate this question:
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- 16.
When moving pallets with a forklift, why should you make sure the forksd are spaced far enough apart?
- A.
To ensure load stability
- B.
To maximixe the lifting capacity
- C.
To decrease the weight of the load
- D.
To increase your visibility of the forks
Correct Answer
A. To ensure load stabilityExplanation
To ensure load stability, it is important to space the forks of the forklift far enough apart. This allows for a wider base of support, distributing the weight of the load evenly and preventing it from tipping or becoming unbalanced during transportation. By maintaining load stability, the risk of accidents and damage to the load and forklift is minimized, ensuring a safe and efficient operation.Rate this question:
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- 17.
When operating a forklift, what do you do after you have the forks under the pallet?
- A.
Accelerate quickly and push forward on the lift control lever
- B.
Accelerate quickly and pull back on the lift control lever
- C.
Accelerate slightly and pull back on the lift control lever
- D.
Accelerate slowly and push forward on the lift control lever
Correct Answer
C. Accelerate slightly and pull back on the lift control leverExplanation
After positioning the forks under the pallet, it is important to accelerate slightly and pull back on the lift control lever. This action allows the forklift to lift the pallet smoothly and safely without causing any sudden movements or instability. Accelerating slightly ensures a controlled lift, while pulling back on the lift control lever helps in raising the forks and the pallet to the desired height. This combination of actions ensures proper lifting technique and reduces the risk of accidents or damage to the load.Rate this question:
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- 18.
When operating a front end loader with a forklift attachment, what control is used to adjust the forks forward?
- A.
Clamshell
- B.
Fat
- C.
Hoist
- D.
Tilt
Correct Answer
D. TiltExplanation
When operating a front end loader with a forklift attachment, the control used to adjust the forks forward is the "Tilt" control. This control allows the operator to tilt the forks forward or backward, adjusting the angle of the forks to properly lift and transport loads. By tilting the forks forward, the operator can position the forks under the load and secure it for transportation.Rate this question:
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- 19.
What is the efficient operating range of a scraper?
- A.
200 feet
- B.
300 feet
- C.
400 feet
- D.
500 feet
Correct Answer
B. 300 feetExplanation
The efficient operating range of a scraper is 300 feet. This means that the scraper is designed to work optimally within this distance. Operating the scraper within this range ensures maximum efficiency and effectiveness in its intended tasks.Rate this question:
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- 20.
What are the four basic cycles in any scraper operation?
- A.
Hauling, spreading, planning, returning
- B.
Spreading, planning, loading, returning
- C.
Loading, hauling, spreading, returning
- D.
Planning, scraping, hauling, returning
Correct Answer
C. Loading, hauling, spreading, returningExplanation
The correct answer is "Loading, hauling, spreading, returning." In any scraper operation, the first step is to load the scraper with material. After that, the loaded scraper is hauled to the desired location. Once at the location, the material is spread or dumped. Finally, the empty scraper is returned to the starting point to repeat the cycle. This sequence of loading, hauling, spreading, and returning constitutes the four basic cycles in any scraper operation.Rate this question:
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- 21.
What is the best reason to perform a downhill pull with a scraper?
- A.
To increase tire life
- B.
To decrease tire spinning
- C.
To decrease gravitational pull
- D.
To add more material per load
Correct Answer
D. To add more material per loadExplanation
Performing a downhill pull with a scraper allows for the addition of more material per load. When going downhill, gravity assists in pulling the scraper and its load, allowing for a greater amount of material to be collected and transported. This increases efficiency and productivity by reducing the number of trips needed to transport material, ultimately saving time and resources.Rate this question:
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- 22.
Which of these loading methods generally achieves maximum productivity?
- A.
Pusher
- B.
Shuttle
- C.
Straddle
- D.
Backtrack
Correct Answer
A. PusherExplanation
The pusher loading method generally achieves maximum productivity. This method involves using a pusher machine to push the containers or goods into the desired position for loading or unloading. This process is efficient and allows for quick movement of goods, resulting in increased productivity.Rate this question:
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- 23.
Generally, push-loaded scrapers should be loaded within a maximum stance of how many feet?
- A.
50
- B.
75
- C.
100
- D.
150
Correct Answer
C. 100Explanation
Push-loaded scrapers should be loaded within a maximum stance of 100 feet. This means that the distance between the scraper and the material being loaded should not exceed 100 feet. This is important to ensure efficient loading and to prevent excessive strain on the equipment. Loading the scraper within this maximum stance allows for better control and maneuverability, reducing the risk of accidents and improving productivity.Rate this question:
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- 24.
When operating a scraper, at what speed should you enter the loading area?
- A.
Controlled low return speed
- B.
Controlled high return speed
- C.
Same speed as the pusher
- D.
Slower speed than the pusher
Correct Answer
B. Controlled high return speedExplanation
When operating a scraper, it is recommended to enter the loading area at a controlled high return speed. This means that the scraper should be moving at a relatively fast pace while returning to the loading area. This allows for efficient and effective loading of materials onto the scraper. By maintaining a controlled high return speed, the operator can ensure that the scraper is able to quickly and smoothly navigate back to the loading area, minimizing downtime and maximizing productivity.Rate this question:
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- 25.
When the scraper leaves a cut, why should you allow the scraper to travel a few feet before lfiting the bowl to the carrying position?
- A.
To be sure the apron is closed
- B.
To maintain a sense of gravity
- C.
To keep the scraper from bouncing
- D.
To spread loose material piles in front of the bowl
Correct Answer
D. To spread loose material piles in front of the bowlExplanation
When the scraper leaves a cut, allowing it to travel a few feet before lifting the bowl to the carrying position helps to spread loose material piles in front of the bowl. This is important because it ensures that the material is evenly distributed and prevents any potential imbalances or uneven weight distribution in the bowl. By spreading the material piles, it also helps to maintain stability and control while carrying the load, reducing the chances of the scraper bouncing or becoming unstable during transportation.Rate this question:
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- 26.
Which statement describes the proper procedure to begin loading sand in a scraper?
- A.
Use the forward momentum of the scraper
- B.
Start with the blade in the dirt
- C.
Load of a slight upgrade
- D.
Loosen first with rippers
Correct Answer
A. Use the forward momentum of the scraperExplanation
To begin loading sand in a scraper, it is recommended to use the forward momentum of the scraper. This means that the scraper should be in motion while loading the sand, which helps in efficiently scooping and collecting the material. Starting with the blade in the dirt, loading on a slight upgrade, and loosening first with rippers are not described as proper procedures for loading sand in a scraper.Rate this question:
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- 27.
When picking up loose shale with a scraper on level grade, the blade should be positioned to follow...
- A.
Previous cuts
- B.
Spoilage of windrows
- C.
Planes of lamination
- D.
Previously pumped areas
Correct Answer
C. Planes of laminationExplanation
When picking up loose shale with a scraper on level grade, the blade should be positioned to follow the planes of lamination. This means that the blade should be aligned with the natural layers or bedding planes in the shale. By following these planes, the blade can effectively separate and lift the shale without causing excessive damage or disruption to the material. This technique ensures efficient and controlled removal of the shale while minimizing the risk of accidents or equipment damage.Rate this question:
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- 28.
When spreading materials with scrapers, why should you route the scrapers so their tracks overlap?
- A.
Maintain pumping
- B.
To promote compaction
- C.
To guarantee faster exit speeds
- D.
Ensure less tearing of the edge
Correct Answer
B. To promote compactionExplanation
Routing the scrapers so their tracks overlap helps to promote compaction of the materials being spread. When the tracks overlap, it ensures that the materials are evenly distributed and compressed, resulting in better compaction. This helps to create a more stable and durable surface, preventing issues such as settling or erosion. Additionally, promoting compaction can also improve the overall efficiency and effectiveness of the spreading process.Rate this question:
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- 29.
When spreading materials with a scraper, why should you make the fill high on the outside edges?
- A.
To assist in proper compaction
- B.
To complete the compaction process
- C.
To have proper drainage in the center of the fill
- D.
To prevent the scraper from sliding over the edge
Correct Answer
D. To prevent the scraper from sliding over the edgeExplanation
By making the fill high on the outside edges, it creates a barrier that prevents the scraper from sliding over the edge. This is important because if the scraper were to slide over the edge, it could cause uneven spreading of the materials and potentially lead to an incomplete or uneven compaction process. Therefore, by preventing the scraper from sliding, it ensures that the materials are spread evenly and allows for proper compaction to take place.Rate this question:
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- 30.
For best results when loading wet or sticky materials, how far should you bring the scraper tailgate forward each time?
- A.
1 foot
- B.
2 feet
- C.
3 feet
- D.
4 feet
Correct Answer
A. 1 footExplanation
To achieve the best results when loading wet or sticky materials, it is recommended to bring the scraper tailgate forward by 1 foot each time. This allows for better control and prevents excessive material from sticking to the scraper. Bringing the tailgate forward by a shorter distance ensures that the materials are loaded evenly and efficiently, minimizing any potential issues or complications during the loading process.Rate this question:
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- 31.
When using a scraper, what can you do to save valuable time on short radius turns?
- A.
The shuttle method
- B.
Long-radius turns
- C.
A figure-eight cycle
- D.
Circle returns
Correct Answer
C. A figure-eight cycleExplanation
A figure-eight cycle can save valuable time on short radius turns when using a scraper. This method involves making a continuous loop in the shape of a figure-eight, allowing the scraper to efficiently navigate tight turns without the need for stopping and reversing. By smoothly transitioning from one turn to another, the figure-eight cycle minimizes the time spent maneuvering and maximizes productivity.Rate this question:
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- 32.
If the haul road on which you are operating the scraper is rough and there is no grader available, you should...
- A.
Travel at a slower return speed
- B.
Travel at a higher return speed
- C.
Lower the scraper bowl on the haul trip to level the road
- D.
Lower the scraper bowl on the return trip to level the road
Correct Answer
D. Lower the scraper bowl on the return trip to level the roadExplanation
When operating a scraper on a rough haul road without a grader available, lowering the scraper bowl on the return trip to level the road is the correct action to take. Lowering the scraper bowl on the return trip helps to level the road, making it smoother for subsequent trips. This action helps to reduce the impact and vibrations on the scraper, improving its stability and preventing potential damage. It also ensures a safer and more efficient operation by providing a smoother surface for the scraper to travel on.Rate this question:
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- 33.
What can you do to eliminate bouncing when traveling with the scraper unit?
- A.
Carry the scraper bowl low to the ground
- B.
Travel along outside edges of the fill
- C.
Use alternate haul roads
- D.
Travel at higher speeds
Correct Answer
A. Carry the scraper bowl low to the groundExplanation
Carrying the scraper bowl low to the ground helps to eliminate bouncing when traveling with the scraper unit. By keeping the bowl low, the weight is distributed evenly and closer to the ground, providing better stability and reducing the chances of bouncing. This ensures a smoother and safer travel, preventing any damage or accidents that may occur due to bouncing.Rate this question:
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- 34.
When towing a sheepsfoot roller on a road, you should work the roller in what direction?
- A.
Extreme right to left
- B.
Extreme left to right
- C.
Outside to center
- D.
Center to outside
Correct Answer
C. Outside to centerExplanation
When towing a sheepsfoot roller on a road, it is recommended to work the roller from the outside to the center. This means starting from the outer edges of the road and gradually moving towards the center. This technique helps to evenly compact the soil and achieve a smooth and uniform surface. By working from the outside to the center, the roller can effectively compact the entire width of the road, ensuring optimal results.Rate this question:
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- 35.
What happens to the 1-2 inches of loose soil left by the sheepsfoot roller?
- A.
It is hauled away
- B.
It is used to absorb moisture
- C.
It acts as a cushion to tehfinal layer
- D.
It assists in bonding successive layers
Correct Answer
D. It assists in bonding successive layersExplanation
The loose soil left by the sheepsfoot roller assists in bonding successive layers. This means that it helps to create a strong connection between the layers of soil that are compacted on top of it. This is important for the overall stability and strength of the construction project. By bonding the layers together, the loose soil acts as a cohesive force that prevents them from shifting or separating. This ensures that the final layer of soil will be properly supported and less prone to damage or failure.Rate this question:
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- 36.
What is the purpose of equipping steel wheel roller with scraper blades?
- A.
Assist in leveling the area
- B.
Break up hardened surface areas
- C.
Keep the drum rolls in proper alignment
- D.
Keep the drum rolls clean and free of debris
Correct Answer
D. Keep the drum rolls clean and free of debrisExplanation
The purpose of equipping a steel wheel roller with scraper blades is to keep the drum rolls clean and free of debris. As the roller moves over the surface, the scraper blades scrape off any dirt, rocks, or other debris that may have accumulated on the drum rolls. This helps to prevent the debris from affecting the performance of the roller and ensures that the drum rolls maintain proper contact with the surface, resulting in a smoother and more effective leveling process.Rate this question:
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- 37.
How can you prevent asphalt from sticking to the drum rolls of a steel-wheel roller?
- A.
By using scraper blades
- B.
By using water from spray bars
- C.
By using chemically treated drum rolls
- D.
By preheating the drum rolls prior to rolling
Correct Answer
B. By using water from spray barsExplanation
Water from spray bars can prevent asphalt from sticking to the drum rolls of a steel-wheel roller by creating a barrier between the asphalt and the drum rolls. The water helps to cool down the temperature of the drum rolls, preventing the asphalt from adhering to them. Additionally, the water can also help to keep the surface of the drum rolls clean, reducing the chances of any asphalt buildup. This method is commonly used in road construction projects to ensure smooth and efficient asphalt compaction.Rate this question:
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- 38.
When using the steel wheel roller to roll asphalt, how do you prevent the drive wheel from pushing the asphalt up in front of the drum?
- A.
Drive the roller backwards
- B.
Drive the roller forwards
- C.
Increase the vibrations
- D.
Use plenty of water
Correct Answer
B. Drive the roller forwardsExplanation
Driving the roller forwards prevents the drive wheel from pushing the asphalt up in front of the drum. By moving forward, the roller applies pressure on the asphalt, compacting it evenly and preventing it from being pushed up. This technique ensures a smooth and uniform surface.Rate this question:
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- 39.
What can happen if you leave the steel wheel roller standing on a new road surface?
- A.
The heat will warp the drum rolls
- B.
Depressions will be left in the pavement
- C.
Segregation will take place in the asphalt
- D.
Engine oil may leak and deteriorate the asphalt
Correct Answer
B. Depressions will be left in the pavementExplanation
Leaving a steel wheel roller standing on a new road surface can cause depressions in the pavement. This is because the weight of the roller, combined with the heat generated from the steel drum rolls, can cause the asphalt to become soft and malleable. As a result, the roller will leave indentations or depressions in the pavement, which can affect the overall smoothness and quality of the road surface.Rate this question:
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- 40.
Pneumatic-tired rollers are used when the soil to be compacted requires...
- A.
No vibration
- B.
Less moisture
- C.
Less rolling time
- D.
A kneading action
Correct Answer
D. A kneading actionExplanation
Pneumatic-tired rollers are used when the soil to be compacted requires a kneading action. This means that the soil needs to be compressed and shaped in a way that eliminates air voids and creates a dense and stable surface. Pneumatic-tired rollers achieve this by exerting pressure on the soil through the inflation of their tires, which creates a kneading effect. This action helps to improve the soil's load-bearing capacity and overall stability, making it suitable for applications such as road construction and building foundations.Rate this question:
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- 41.
One difference between the self-propelled pnuematic roller, and the 13-wheeled towed rollre is that the self-propelled roller...
- A.
Travels faster
- B.
Has a dozer blade
- C.
Has a watering system
- D.
Can maneuver in smaller areas
Correct Answer
C. Has a watering systemExplanation
The self-propelled pneumatic roller has a watering system, which means it has the capability to spray water onto the surface being rolled. This watering system helps in compacting the material effectively by adding moisture and reducing the friction between the roller and the surface. It also helps in preventing the material from sticking to the roller drum. The 13-wheeled towed roller, on the other hand, does not have a watering system.Rate this question:
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- 42.
How can you ensure uniform compaction with the pnuematic tired-roller?
- A.
Maintain even tire pressure
- B.
Overlap each succeeding pass
- C.
Begin rolling on the west side
- D.
Begin rolling on the outside edge of the project
Correct Answer
A. Maintain even tire pressureExplanation
To ensure uniform compaction with the pneumatic tired-roller, it is important to maintain even tire pressure. This is because maintaining consistent tire pressure across all tires ensures that the weight distribution is uniform, resulting in even compaction of the material being rolled. Uneven tire pressure can lead to uneven weight distribution, which can result in uneven compaction and potential issues with the final quality of the project. Therefore, maintaining even tire pressure is crucial for achieving uniform compaction with the pneumatic tired-roller.Rate this question:
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- 43.
What precaution must you take, when using articulated steering, on a grader with the blade positioned at an acute angle?
- A.
Limited blade lift capability
- B.
Limited side shift capability
- C.
Running the blade into the rear tire on turns
- D.
Putting excessive pressure on the lift cylinders
Correct Answer
C. Running the blade into the rear tire on turnsExplanation
When using articulated steering on a grader with the blade positioned at an acute angle, one must take the precaution of avoiding running the blade into the rear tire on turns. This is because the acute angle of the blade increases the risk of it coming into contact with the rear tire during sharp turns. Such contact can cause damage to the tire and potentially compromise the stability and maneuverability of the grader. Therefore, it is important to be cautious and adjust the steering and blade position accordingly to prevent this issue.Rate this question:
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- 44.
What terms do we use to designate a graders moldboard ends?
- A.
Heel and toe
- B.
Cut and spill ends
- C.
Left and right end bits
- D.
Leading and trailing end bits
Correct Answer
A. Heel and toeExplanation
"Heel and toe" are the terms used to designate a grader's moldboard ends. The "heel" refers to the end of the moldboard closest to the grader's frame, while the "toe" refers to the end of the moldboard farthest from the frame. These terms are commonly used in the construction and maintenance of roads and other surfaces where graders are used to level and shape the terrain.Rate this question:
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- 45.
You regulate the depth of your cut with a grader by...
- A.
Leaning the front wheels
- B.
Articulating the grader frame
- C.
Raising or lowering the toe of the moldboard
- D.
Raising or lowering the heel of the moldboard
Correct Answer
C. Raising or lowering the toe of the moldboardExplanation
To regulate the depth of the cut with a grader, you need to adjust the position of the moldboard. By raising or lowering the toe of the moldboard, you can control how deep the cut will be. This adjustment allows you to achieve the desired depth for the cut, ensuring that the grading process is done accurately and efficiently. Leaning the front wheels or articulating the grader frame are not directly related to controlling the depth of the cut.Rate this question:
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- 46.
To have the material cut by a grader form a windrow, you must...
- A.
Raise the side draft
- B.
Lowere the side shift
- C.
Raise the heel of the moldboard
- D.
Lower the heel of the moldboard
Correct Answer
D. Lower the heel of the moldboardExplanation
Lowering the heel of the moldboard is necessary to have the material cut by a grader form a windrow. The moldboard is the curved metal plate located at the back of the grader blade. By lowering the heel of the moldboard, the material being cut is pushed towards the center of the blade, creating a windrow. This allows for efficient collection and removal of the material, making it easier to transport or dispose of. Raising the heel of the moldboard would have the opposite effect, spreading the material instead of forming a windrow.Rate this question:
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- 47.
By adjusting the pitch of the grader moldboard, you change the...
- A.
Spillage over the moldboard
- B.
Spread thickness of the material
- C.
Spillage off the heel of the moldboard
- D.
Cutting or dragging action of the cutting edge
Correct Answer
D. Cutting or dragging action of the cutting edgeExplanation
By adjusting the pitch of the grader moldboard, you change the cutting or dragging action of the cutting edge. The pitch refers to the angle at which the moldboard is positioned. When the pitch is increased, the cutting edge will have a more aggressive angle, resulting in a deeper cutting action. Conversely, when the pitch is decreased, the cutting edge will have a more shallow angle, resulting in a dragging action that is less effective for cutting through materials. Therefore, adjusting the pitch directly affects the cutting or dragging action of the cutting edge.Rate this question:
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- 48.
What type of action occurs when you pitch a grader's scarifier to the rear?
- A.
Planning
- B.
Tearing
- C.
Dragging
- D.
Spreading
Correct Answer
B. TearingExplanation
When you pitch a grader's scarifier to the rear, the action that occurs is tearing. This means that the scarifier, which is a tool used for breaking up and loosening soil or pavement, is being tilted backwards. This action allows the scarifier to dig into the surface and tear it apart, creating roughness or texture. Tearing is often done to prepare the ground for further construction or to improve drainage.Rate this question:
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- 49.
When removing teeth from a grader's scarifier, which tooth should you take out first?
- A.
Left outside edge
- B.
Right outside edge
- C.
Center of the scarifier
- D.
Side where the cut will be made
Correct Answer
C. Center of the scarifierExplanation
When removing teeth from a grader's scarifier, it is recommended to take out the center tooth first. This is because removing the center tooth will help maintain stability and balance in the scarifier. By removing the center tooth first, the weight distribution of the scarifier remains more even, making it easier to remove the remaining teeth without causing any imbalance or instability.Rate this question:
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- 50.
What happens if you lower the ripper teeth on a grader too much?
- A.
You shear the teeth
- B.
You get a dragging action
- C.
It raises the graders back end
- D.
It causes the grader to go offline
Correct Answer
C. It raises the graders back endExplanation
Lowering the ripper teeth on a grader too much will cause the graders back end to raise. This happens because the ripper teeth are designed to break up hard soil or pavement, and when they are lowered too much, they exert excessive force on the ground. This force causes the back end of the grader to lift up, which can affect the stability and control of the machine.Rate this question:
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Current Version
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Mar 20, 2023Quiz Edited by
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Feb 27, 2013Quiz Created by
Johnr21077
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