Timber Harvesting (4/6/21) Flashcards
The following component of the logging system which includes all wood moving from the landing.
Secondary Transportation
Also called prehauling it involves loading tree segments onto a carry vehicle in the brush and carry them off the ground to the landing.
Forwarding
Down time taken during a harvesting operation for construction of a roadway would be considered a ______ delay.
Productive
Down time taken during a harvesting operation for pushing an 18-wheeler out of a mud hole would be considered what kind of delay?
Non-Productive
Power drum located at the rear of either a kidder or a tractor.
Winch
Tong-like device used to pick up logs for skidding and for loading logs on the ground.
Grapple
A wire cable sling used to encircle the end of a log for skidding.
Choker
Skidding of a group of logs or trees to a landing is a turn or _____.
Drag
A variable that effects the speed and efficiency of skidding.
(All of the Above) Distance, Load Size, Slope, or Soil Conditions
A disadvantage of using the forwarding system.
Have to load logs twice/High initial cost
Why should logs be hauled within the first two weeks of felling during weather?
Blue-Stain Fungus
Type of skidder that most MS loggers use.
Grapple
Place where logs are accumulated.
Landing
A trailer used to haul logging equipment.
Low-Boy
Trailer used to haul short hardwood logs.
Double-Bunk
A kingpin for coupling the log truck and trailer is located on the _______.
Trailer
Maximum legal weight limit of a log truck with a harvest permit in MS.
84,000
Which trailer weighs the most?
Double-Bunk
Any movement from the stump to the landing.
Primary Transportation
A contract logger cutting Plum-Creek’s timber obtains it’s profit from Plum-Creek’s _______.
Logging Cost (Haul Cost)
Moving logs to a landing while the machine is stationary.
Yarding
A logger cutting timber that he purchased from an individual figures his profit by calculating the _____.
Delivered Price - Stumpage
For a wheeled skidder a _____ slope is about the limit for safe productive work.
1/4 mile
In MS and AL a method of logging pulp wood transportation to the mill.
Truck, Barges, Railroad
Represents the decline and value of an asset due to wear and tear.
Depreciation
A trucking variable determined by the state.
(All of the Above) Height, Width, Length
Which one of these would be seen as a variable cost?
Depreciation, Insurance, Licenses, or Maintenance
Maintenance
Which one of these would be considered a fixed cost?
Fuel, Interest, Oil, Tires
Interest
A fifth wheel is located ______.
Over a truck’s tandem axle
Two rear axles on a log truck.
Tandem
Number of wheels on a log truck with a tandem tractor and a tandem semi-trailer.
18
The maximum rear overhang allowed on a log truck in MS.
28 feet past the rear axle
Maximum overhang allowed on a log trailer in MS at night.
4 feet past the tail lights
Maximum legal weight limit of a loaded log truck with a harvest permit in MS traveling on an interstate highway.
80,000
Reasons for log truck haul delays.
- Load and Unload Time
- No logs to load
- Mechanical Downtime
- MDOT
- Traffic
Explain one disadvantage of using a grapple skidder versus a cable type skidder.
Terrain
High production is almost directly related to constant and good supervision. Why?
Keep people working hard and providing feedback.
To avoid delays the four major components in a logging operation should work in conjunction with each other. Briefly explain how each component depends on the other for minimal downtime.
- Must have wood for skidder to skid.
- Must have wood skidded to landing for loader to sort.
- Must have wood sorted for loader operator to load.
- Must have trucks available to haul wood to the mill.
What is the full name of the section of state government that regulates weight limits on MS highways.
Mississippi Department of Transportation
List the two skidding variables with the greatest effect on skidding cost.
Distance and Volume per Stem
Describe the main job that the loader operator is responsible for when merchandising timber.
Making sure that everything is getting cut and sold for the highest possible value.
