CDC 3e251 Set B Vol. 2

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  • 1/124 Questions

    When stockpiliing with a front end loader, what happens when the material is worked too much?

    • Segregation takes place
    • Larger particles break up
    • Excessive tire wear occurs
    • The stockpile becomes flat
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CDC 3e251 Set B Vol. 2 - Quiz
About This Quiz

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.

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  • 2. 

    On the skid steer loader, what will happen if you remove your hands and feet from the controls?

    • The engine die

    • The equipment will stop moving

    • The engine will return to an idle speed

    • The equipment will automatically resume and forward momentum

    Correct Answer
    A. The equipment will stop moving
    Explanation
    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.

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  • 3. 

    What can happen if you leave the steel wheel roller standing on a new road surface?

    • The heat will warp the drum rolls

    • Depressions will be left in the pavement

    • Segregation will take place in the asphalt

    • Engine oil may leak and deteriorate the asphalt

    Correct Answer
    A. Depressions will be left in the pavement
    Explanation
    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.

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  • 4. 

    What terms do we use to designate a graders moldboard ends?

    • Heel and toe

    • Cut and spill ends

    • Left and right end bits

    • Leading and trailing end bits

    Correct Answer
    A. Heel and toe
    Explanation
    "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.

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  • 5. 

    Where should you look to determine the type of fluid (hydraulic, oil, etc) required on a front end loader?

    • AF Form 1800

    • Glove compartment

    • Technical Order (TO) or owner's manual

    • Passenger side door panel

    Correct Answer
    A. Technical Order (TO) or owner's manual
    Explanation
    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.

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  • 6. 

    When moving pallets with a forklift, why should you make sure the forksd are spaced far enough apart?

    • To ensure load stability

    • To maximixe the lifting capacity

    • To decrease the weight of the load

    • To increase your visibility of the forks

    Correct Answer
    A. To ensure load stability
    Explanation
    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.

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  • 7. 

    Other than on the equipment itself, where can you find lube charts that pertain to a regular piece of equipment?

    • Catalogs

    • Pamphlets

    • Brochures

    • Technical Orders (TO)

    Correct Answer
    A. Technical Orders (TO)
    Explanation
    Technical Orders (TO) are a set of documents that provide detailed instructions and information about the maintenance, operation, and repair of military equipment. These documents are usually available in a digital or printed format and can be accessed through various channels such as online databases, libraries, or military supply centers. They contain essential information, including lube charts, that pertain to regular pieces of equipment. Therefore, TOs are a reliable source for finding lube charts for equipment, apart from the equipment itself.

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  • 8. 

    What must you do before performing any maintenance action on a front end loader?

    • Put the transmission in nuetral

    • Remove all fuel from the fuel system

    • Disconnect and cap the hydraulic system

    • Turn the loader off and set the parking brake

    Correct Answer
    A. Turn the loader off and set the parking brake
    Explanation
    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.

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  • 9. 

    On a front end loader, in what position would you place the lift-control lever to backdrag the area?

    • Float

    • Neutral

    • Reverse

    • Forward

    Correct Answer
    A. Float
    Explanation
    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.

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  • 10. 

    Unlike a regular front end loader, what is the advantage of a skid steer loader?

    • It does not need to be hauled to the jobsite

    • Machine controls react quicker

    • It can operate in a smaller area

    • It consumes less fuel

    Correct Answer
    A. It can operate in a smaller area
    Explanation
    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.

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  • 11. 

    On the crawler type dozer, why do you allow the engine to idle 3-5 minutes before you shut down?

    • Prevent damage to the hydraulic pump

    • Prevent damage to the turbo charger

    • Increase water pump pressure

    • Decrease oil pump cavitation

    Correct Answer
    A. Prevent damage to the turbo charger
    Explanation
    Allowing the engine to idle for 3-5 minutes before shutting down prevents damage to the turbocharger. The turbocharger is responsible for increasing the power and efficiency of the engine by compressing the incoming air. When the engine is running, the turbocharger spins at high speeds and generates a lot of heat. By idling the engine before shutting it down, the turbocharger is given time to cool down gradually, preventing potential damage caused by sudden temperature changes.

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  • 12. 

    When equipped with a multi-purpose bucket, what function can the front end loader NOT perform?

    • Dozer

    • Scraper

    • Dragline

    • Clamshell

    Correct Answer
    A. Dragline
    Explanation
    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.

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  • 13. 

    If your dozer cannot initially push over a large tree, what do you do?

    • Get a chain saw and cut the tree down

    • Cut the roots with the blade and push the tree over

    • Connect a chain between two dozers and pull the tree down

    • Back up 30 feet and run into the tree at high speed

    Correct Answer
    A. Cut the roots with the blade and push the tree over
    Explanation
    To overcome the obstacle of a large tree that cannot be initially pushed over by the dozer, the most effective solution is to cut the roots with the blade and then push the tree over. By cutting the roots, the tree's stability is compromised, making it easier to push over. This method ensures a safe and controlled removal of the tree without causing damage to the dozer or any surrounding structures.

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  • 14. 

    If you are operating a backhoe and someone steps in the swing radius of the bucket...

    • Slow down the operation

    • Keep the person in visual contact

    • Notify your supervisor as soon as you can

    • Ground the bucket until the person moves out of the area

    Correct Answer
    A. Ground the bucket until the person moves out of the area
    Explanation
    If someone steps into the swing radius of the bucket while operating a backhoe, the correct action to take is to ground the bucket until the person moves out of the area. This means stopping any movement of the bucket and keeping it in a stationary position until the person is no longer within the danger zone. This is crucial for ensuring the safety of the person and avoiding any potential accidents or injuries. It is important to prioritize the well-being of individuals in the vicinity and take appropriate measures to prevent any harm.

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  • 15. 

    When doing an excavation, where do you lose most of your digging time?

    • Excavating basements

    • Refueling the machine

    • Reading the Off-set stakes

    • Repositioning the machine

    Correct Answer
    A. Repositioning the machine
    Explanation
    When doing an excavation, one loses most of their digging time in repositioning the machine. This is because moving the machine from one location to another takes up a significant amount of time and effort. It involves stopping the digging process, maneuvering the machine to the new location, and then setting it up again to resume digging. This process can be time-consuming and may result in a loss of productivity during excavation.

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  • 16. 

    What bucket control is used to raise and lower the bucket on a front end loader?

    • Lift control

    • Clam control

    • Bucket control

    • Transmission control

    Correct Answer
    A. Lift control
    Explanation
    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.

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  • 17. 

    How should you backfill a trench when using a front end loader with a narrow bucket?

    • Move the loader straight into the material

    • Raise the bucket about two inches off the ground

    • Move the loader rapidly into the material

    • Backfill the area from an angle

    Correct Answer
    A. Backfill the area from an angle
    Explanation
    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.

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  • 18. 

    What can you do to eliminate bouncing when traveling with the scraper unit?

    • Carry the scraper bowl low to the ground

    • Travel along outside edges of the fill

    • Use alternate haul roads

    • Travel at higher speeds

    Correct Answer
    A. Carry the scraper bowl low to the ground
    Explanation
    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.

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  • 19. 

    Pneumatic-tired rollers are used when the soil to be compacted requires...

    • No vibration

    • Less moisture

    • Less rolling time

    • A kneading action

    Correct Answer
    A. A kneading action
    Explanation
    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.

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  • 20. 

    What is the purpose of the AF Form 103 before excavating?

    • Prevent loss of life

    • Prevent disturbance of aircraft

    • Prevent unscheduled utility outage

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The purpose of the AF Form 103 before excavating is to prevent loss of life, prevent disturbance of aircraft, and prevent unscheduled utility outage. This form is likely a safety measure that ensures that proper precautions are taken before any excavation work is done. By completing this form, individuals involved in the excavation process can identify potential risks and hazards, and take necessary steps to mitigate them. This helps to ensure the safety of personnel, prevent any disruptions to aircraft operations, and avoid any unplanned utility outages that may occur due to the excavation work.

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  • 21. 

    To pick up materials from a stockpile with a front end loader, which method should you use?

    • Scoop

    • Dozer

    • Dragline

    • Clamshell

    Correct Answer
    A. Scoop
    Explanation
    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.

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  • 22. 

    How can you prevent asphalt from sticking to the drum rolls of a steel-wheel roller?

    • By using scraper blades

    • By using water from spray bars

    • By using chemically treated drum rolls

    • By preheating the drum rolls prior to rolling

    Correct Answer
    A. By using water from spray bars
    Explanation
    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.

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  • 23. 

    What can cause a bulldozer to nose up and down, creating an uneven work surface?

    • Pushing sand

    • Operating too fast

    • Operating the dozer on a slope

    • Raising and lowering the blade too much

    Correct Answer
    A. Raising and lowering the blade too much
    Explanation
    Raising and lowering the blade too much can cause a bulldozer to nose up and down, creating an uneven work surface. When the blade is raised too high, it can cause the front end of the bulldozer to lift, resulting in the nose pointing upwards. Conversely, when the blade is lowered too much, it can cause the front end to drop, leading to the nose pointing downwards. These movements can create an uneven work surface, making it difficult to maintain a level and consistent grading or pushing of materials.

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  • 24. 

    Fuel your dozer at the end of the workday in order to...

    • Prevent condensation in the fuel tank

    • Keep the fuel lines lubricated

    • Keep the filters moist

    • Prevent vapor lock

    Correct Answer
    A. Prevent condensation in the fuel tank
    Explanation
    Fueling the dozer at the end of the workday helps prevent condensation in the fuel tank. When the dozer operates, the fuel tank heats up, and when it cools down overnight, moisture can form inside the tank. This moisture can lead to the formation of condensation, which can mix with the fuel and cause issues such as fuel contamination or corrosion. By filling up the tank at the end of the day, it reduces the empty space inside the tank, minimizing the potential for condensation to form.

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  • 25. 

    What limits the digging depth of a backhoe?

    • Type of soil

    • Horsepower of the engine

    • Position of the digging bucket

    • Length of the boom and dipper stick

    Correct Answer
    A. Length of the boom and dipper stick
    Explanation
    The length of the boom and dipper stick determines the digging depth of a backhoe. A longer boom and dipper stick allow the backhoe to reach deeper into the ground, while a shorter length limits the depth it can dig. The other options, such as the type of soil, horsepower of the engine, and position of the digging bucket, may affect the efficiency or effectiveness of the digging process, but they do not directly limit the maximum depth the backhoe can reach.

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  • 26. 

    If you leave the rear tires on the ground when operating a backhoe, what effect can this have?

    • Limits the digging depth

    • Causes uneven excavating

    • Reduces machine stability

    • Reduces the power of the machine

    Correct Answer
    A. Reduces machine stability
    Explanation
    Leaving the rear tires on the ground when operating a backhoe reduces machine stability. This is because the weight distribution is uneven, with the rear tires providing less support. As a result, the backhoe becomes more prone to tipping over, especially when lifting heavy loads or operating on uneven terrain. To ensure proper stability and prevent accidents, it is important to fully engage the stabilizers or outriggers before operating the backhoe.

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  • 27. 

    What safety precaution prevents cave-ins during excavation?

    • Shoring on the sides of the excavation

    • Have an AF Form 103 attached to the work order

    • Put the material into dump trucks and haul away

    • Operate the machine at lower rpm in unstable soil

    Correct Answer
    A. Shoring on the sides of the excavation
    Explanation
    Shoring on the sides of the excavation is a safety precaution that prevents cave-ins during excavation. Shoring involves installing supports or braces on the sides of the excavation to prevent the soil from collapsing. This helps to maintain the stability of the excavation and ensures the safety of workers inside. By providing additional support to the excavation walls, shoring reduces the risk of cave-ins and protects workers from potential accidents or injuries.

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  • 28. 

    When properly equipped, a front end loader can perform tasks associated with all of the following operations except...

    • Dozer tasks

    • Scraper jobs

    • Trailer operations

    • Clamshell operations

    Correct Answer
    A. Trailer operations
    Explanation
    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.

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  • 29. 

    When operating a front end loader with a forklift attachment, what control is used to adjust the forks forward?

    • Clamshell

    • Fat

    • Hoist

    • Tilt

    Correct Answer
    A. Tilt
    Explanation
    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.

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  • 30. 

    What precaution must you take, when using articulated steering, on a grader with the blade positioned at an acute angle?

    • Limited blade lift capability

    • Limited side shift capability

    • Running the blade into the rear tire on turns

    • Putting excessive pressure on the lift cylinders

    Correct Answer
    A. Running the blade into the rear tire on turns
    Explanation
    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.

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  • 31. 

    What are the two main elements that cause erosion on a berm?

    • Snow and ice

    • Roots and rocks

    • Weather and rodents

    • Sunlight and eqipment traffic

    Correct Answer
    A. Weather and rodents
    Explanation
    Weather and rodents are the two main elements that cause erosion on a berm. Weather, such as rain, wind, and temperature changes, can wear away the soil and destabilize the berm. Rodents, such as burrowing animals, can dig tunnels and create holes in the berm, further contributing to erosion. Both weather and rodents play significant roles in the erosion process on a berm.

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  • 32. 

    When loading a dump truck with a front end loader, how can you prevent damaging the sump body of the truck?

    • Keep the travel stance short

    • Spot the truck to the stockpile

    • Dump the first load a little at a time

    • Have a spotter positioned on the truck

    Correct Answer
    A. Dump the first load a little at a time
    Explanation
    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.

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  • 33. 

    What type of front end loader bucket should you use when scooping sticky material that has a tendency to stick to the bucket?

    • Drag

    • Scoop

    • Hopper

    • Clamshell

    Correct Answer
    A. Clamshell
    Explanation
    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.

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  • 34. 

    When using a scraper, what can you do to save valuable time on short radius turns?

    • The shuttle method

    • Long-radius turns

    • A figure-eight cycle

    • Circle returns

    Correct Answer
    A. A figure-eight cycle
    Explanation
    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.

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  • 35. 

    When removing teeth from a grader's scarifier, which tooth should you take out first?

    • Left outside edge

    • Right outside edge

    • Center of the scarifier

    • Side where the cut will be made

    Correct Answer
    A. Center of the scarifier
    Explanation
    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.

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  • 36. 

    When operating a forklift, what do you do after you have the forks under the pallet?

    • Accelerate quickly and push forward on the lift control lever

    • Accelerate quickly and pull back on the lift control lever

    • Accelerate slightly and pull back on the lift control lever

    • Accelerate slowly and push forward on the lift control lever

    Correct Answer
    A. Accelerate slightly and pull back on the lift control lever
    Explanation
    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.

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  • 37. 

    When spreading materials with scrapers, why should you route the scrapers so their tracks overlap?

    • Maintain pumping

    • To promote compaction

    • To guarantee faster exit speeds

    • Ensure less tearing of the edge

    Correct Answer
    A. To promote compaction
    Explanation
    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.

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  • 38. 

    Why do you clean the mud out of the tracks of your dozer?

    • To keep the rollers from developing flat spots because they are unable to move

    • To keep the rollers from freezing in place

    • To find lubrication points

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Cleaning the mud out of the tracks of a dozer is important for several reasons. Firstly, it helps to prevent the rollers from developing flat spots because the mud can cause uneven wear and damage to the tracks. Secondly, removing the mud prevents the rollers from freezing in place, ensuring that the dozer can move freely and efficiently. Lastly, cleaning the tracks also allows for easier access to lubrication points, ensuring that the dozer's components are properly lubricated and functioning smoothly. Therefore, all of the given options are valid reasons for cleaning the mud out of the tracks of a dozer.

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  • 39. 

    What is the purpose of equipping steel wheel roller with scraper blades?

    • Assist in leveling the area

    • Break up hardened surface areas

    • Keep the drum rolls in proper alignment

    • Keep the drum rolls clean and free of debris

    Correct Answer
    A. Keep the drum rolls clean and free of debris
    Explanation
    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.

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  • 40. 

    Ideally, we construct road mix pavements during dry weather when the tempuarture is at least...

    • 20 degrees

    • 30 degrees

    • 40 degrees

    • 50 degrees

    Correct Answer
    A. 50 degrees
    Explanation
    Road mix pavements are typically constructed using a mixture of aggregates, binder, and water. The correct answer of 50 degrees suggests that this is the minimum temperature required for the construction process. At lower temperatures, the water in the mixture may freeze, hindering proper compaction and bonding of the materials. This can lead to a weaker pavement structure and reduced durability. Therefore, a temperature of at least 50 degrees ensures that the water remains in a liquid state, allowing for optimal compaction and a stronger pavement.

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  • 41. 

    On a normal backhoe, from where do the five hydraulic cyclinders that control the swing, boom, dipper stick, and bucket recieve hydraulic pressure?

    • Umbilical hydraulic reservoir

    • Tractor's pressure regulator

    • Secondary Hydraulic system

    • Tractor's hydraulic system

    Correct Answer
    A. Tractor's hydraulic system
    Explanation
    The correct answer is the Tractor's hydraulic system. This is because the five hydraulic cylinders on a normal backhoe receive hydraulic pressure from the tractor's hydraulic system.

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  • 42. 

    The best way to drain the water out of a trench is to use a...

    • Pail

    • Pump

    • Vacuum

    • Sump hole

    Correct Answer
    A. Pump
    Explanation
    Using a pump is the most effective way to drain water out of a trench. A pump is designed specifically for this purpose and can efficiently remove large amounts of water from the trench. A pail would be too small and time-consuming to use for draining a trench, while a vacuum may not be powerful enough to handle the volume of water. A sump hole is not a method of draining water, but rather a pit that collects water.

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  • 43. 

    Windrows piled in front of the rear grader tires when leveling affect...

    • The grader's power

    • The operator's vision

    • Traction and accuracy

    • Compaction of the material

    Correct Answer
    A. Traction and accuracy
    Explanation
    When windrows are piled in front of the rear grader tires while leveling, it affects the grader's traction and accuracy. Windrows can create obstacles and uneven surfaces, making it difficult for the grader to maintain proper traction and move smoothly. This can result in reduced accuracy in leveling the surface as the grader may struggle to navigate through the windrows. Therefore, windrows piled in front of the rear grader tires can negatively impact the grader's ability to maintain traction and perform accurate leveling.

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  • 44. 

    How do you remove stumps with a dozer?

    • Push the stump over with the blade

    • Cut the roots of the stump and push it out

    • Lower the blade onto the stump and lift out

    • Maneuver the dozer around to push the stump from all sides

    Correct Answer
    A. Cut the roots of the stump and push it out
    Explanation
    To remove stumps with a dozer, the most effective method is to cut the roots of the stump and then push it out. By cutting the roots, the stump becomes loose and easier to remove. Pushing it out with the dozer ensures that it is completely removed from the ground. This method is more efficient than simply pushing the stump over with the blade or maneuvering the dozer around to push the stump from all sides, as it specifically targets the roots for removal. Lowering the blade onto the stump and lifting it out may not be as effective in completely removing the stump.

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  • 45. 

    When constructing a stockpile with a dozer, why should you gradually raise the blade at the end of the cut?

    • To make the cut even

    • To allow for drianage

    • To avoid creating an abrupt ridge

    • To aid the dozer in getting out of a cut

    Correct Answer
    A. To avoid creating an abrupt ridge
    Explanation
    Gradually raising the blade at the end of the cut helps to avoid creating an abrupt ridge. If the blade is raised abruptly, it can create a sharp, uneven edge on the stockpile, which can be problematic for future operations such as loading or accessing the stockpile. By raising the blade gradually, the operator can ensure a smoother transition from the cut to the stockpile, creating a more even surface and reducing the risk of creating obstacles or difficulties in the future.

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  • 46. 

    Which of these loading methods generally achieves maximum productivity?

    • Pusher

    • Shuttle

    • Straddle

    • Backtrack

    Correct Answer
    A. Pusher
    Explanation
    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.

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  • 47. 

    What happens to the 1-2 inches of loose soil left by the sheepsfoot roller?

    • It is hauled away

    • It is used to absorb moisture

    • It acts as a cushion to tehfinal layer

    • It assists in bonding successive layers

    Correct Answer
    A. It assists in bonding successive layers
    Explanation
    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.

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  • 48. 

    What is the best reason to perform a downhill pull with a scraper?

    • To increase tire life

    • To decrease tire spinning

    • To decrease gravitational pull

    • To add more material per load

    Correct Answer
    A. To add more material per load
    Explanation
    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.

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  • 49. 

    When you use the spillage from the first few passes of a dozer to build windrows that hold the earth in front of the blade, what method of dozing are you using?

    • Slot dozing

    • Strip dozing

    • Angle dozing

    • Windrow dozing

    Correct Answer
    A. Slot dozing
    Explanation
    Slot dozing is the method of dozing where the spillage from the first few passes of a dozer is used to build windrows that hold the earth in front of the blade. This technique allows for efficient and controlled movement of large amounts of material, as the windrows act as barriers to prevent the earth from spilling back onto the cleared area. By using slot dozing, the operator can create a smooth and even surface, making it easier for subsequent passes of the dozer to remove the remaining material.

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Quiz Review Timeline (Updated): Mar 20, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 27, 2013
    Quiz Created by
    Johnr21077
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