Hauling

Quiz

1. What are the two main kinds of haul trucks?

2. In what ways are today's haul trucks different?

3. The life expectancy of a truck comes down to what?

4. What is the purpose of finding the optimum match between loaders and haulers?

5. How many passes are considered ideal for a loader to fill a hauler? How many passes are considered acceptable?

6. Why are three passes ideal?

7. Off-road trucks generally have a payload of what percentage over their nominal-rated load capacity?

8. True or false? Haul trucks are not targeted by community groups, nor are they a nuisance to community residents.

9. What are buffer zones used for at mines?

10. Rigid frame haul trucks are found in most quarry operations, but the articulated hauler was developed for what?

Quiz Answers

1. Rigid frame and articulated

2. They have increased payloads, horsepower, torque and fuel efficiency

3. Chassis strength

4. To minimize the length of time it takes a loader to fill a hauler and send it on its way

5. Three passes are ideal; four or five are acceptable

6. Because it keeps a loader's "Y-cycle" time within acceptable limits

7. 10 to 20 percent

8. False — they are part of the reason for this opposition by community groups because of dust and noise concerns.

9. To shield adjacent residents and land owners from mining operations and at the same time protect mining operations from intrusion or adjacent land-use conflicts.

10. Transport under difficult conditions