Podcast
Questions and Answers
How should the minimum capacity of hauling unit compare to the bucket capacity?
How should the minimum capacity of hauling unit compare to the bucket capacity?
- Approximately four times larger (correct)
- Half the size
- Approximately equal
- Twice as large
What is the main use of hydraulic front shovels?
What is the main use of hydraulic front shovels?
- Hard digging above track level and loading haul units (correct)
- Classified by the digging motion of the hydraulically controlled boom
- Excavating below the natural surface of the ground
- Positioning the bucket to dump and maneuvering with the load
What is the main difference between a loader and a shovel or hoe?
What is the main difference between a loader and a shovel or hoe?
- A loader is used for hard digging above track level
- A loader must maneuver and travel with the load to position the bucket to dump (correct)
- A loader is designed to excavate below the natural surface of the ground
- A loader has a hydraulically controlled boom and stick
What should be taken into account when selecting a front shovel?
What should be taken into account when selecting a front shovel?
How is the maximum capacity of a hauling unit determined?
How is the maximum capacity of a hauling unit determined?
What is the main difference between a loader and a hydraulic excavator?
What is the main difference between a loader and a hydraulic excavator?
How should the maximum capacity of a hauling unit compare to the bucket capacity for a front shovel?
How should the maximum capacity of a hauling unit compare to the bucket capacity for a front shovel?
What is the main use of a hydraulic hoe excavator?
What is the main use of a hydraulic hoe excavator?
How should the minimum capacity of a hauling unit compare to the bucket capacity?
How should the minimum capacity of a hauling unit compare to the bucket capacity?
What factors should be taken into account when selecting a front shovel?
What factors should be taken into account when selecting a front shovel?
Flashcards
Hauling unit vs. bucket capacity (minimum)
Hauling unit vs. bucket capacity (minimum)
Approximately four times larger than the bucket capacity.
Hydraulic front shovels: main function
Hydraulic front shovels: main function
Hard digging above track level and loading haul units.
Loaders vs. shovels/hoes: main difference
Loaders vs. shovels/hoes: main difference
A loader must maneuver and travel with the load to position the bucket to dump.
Front shovel selection factors
Front shovel selection factors
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Hauling unit maximum capacity
Hauling unit maximum capacity
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Loader vs. Hydraulic Excavator
Loader vs. Hydraulic Excavator
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Hydraulic hoe excavator:
Hydraulic hoe excavator:
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Study Notes
Hauling Unit Capacity
- The minimum capacity of a hauling unit should be at least 1.5 to 2 times the bucket capacity.
- The maximum capacity of a hauling unit should be at least 3 to 4 times the bucket capacity for a front shovel.
Front Shovels
- The main use of hydraulic front shovels is for loading and hauling heavy materials.
- Factors to consider when selecting a front shovel include the size of the job, the type of material being handled, and the terrain.
Loaders vs. Shovels/Hoes
- The main difference between a loader and a shovel or hoe is the direction of the load: loaders lift and move loads forward, while shovels and hoes lift and move loads upward.
- Another difference between a loader and a hydraulic excavator is the ability to excavate and swing loads, which is not possible with a loader.
Hydraulic Hoe Excavators
- The main use of a hydraulic hoe excavator is for excavating and digging, often in tight spaces.
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