Forestry 250

A log merchandiser in a sawmill is:

a processing line used to measure logs and cut them to length.

1 According to the CA Forest Practice Rules, NTMP stands for:

1 Nonindustrial Timber Management Plan

in the wood residue recovery operations discussed in class, the most expensive ($/ton)process of the operations was

Grinding residues

Which of the following is not a quality of engineered wood products over conventional lumber:

Improved cost

Camera systems on grapple carriages reduce the need for a:

Spotter

In a sawmill, a circular saw typically has a thinner kerf compared to a band saw.

False

lumber recovery factor (LRF) is a measure of the number of board feet, lumber tally

recovered from each cubic foot of log input

True

Engineered wood products, such as laminated veneer lumber, exhibit more variability

in strength than solid-sawn lumber.

Flase

WLPZ stands for Watercourse and Lake Protection Zone and is synonymous with at

stream protection buffer

True

BMPs are a part of state or federal law that must be followed at all times

False

___________ in lumber manufacturing requires accurate measurement

of the geometry and grade of the log.

Primary Breakdown

______is the process of cross-cutting of long boards to saleable lengths

Trimming

When a vehicle’s rear wheels move toward the inside of the road on a horizontal curve is

called _____________, requiring a wider turning radius

off tracking

During harvesting, ____________ is the process where the most value can be

lost compared to all other steps

processing

Ecosystem services or harvesting of plants and animals from forests are known as

__________ products.

forest

What are the three basic fundamental considerations when planning a forest operation or

the use of any forestry machine?

Physically feasible
Economically Viable
Socially acceptable

Recovering biomass after a harvesting operation is often not profitable, so why was

Green Diamond so interested in recovering residues (slash) from previously harvested

areas? List three reasons

no smoke from pile burns
fewer constraints reduced wildfire risk
easy planting
produced clean energy

according to the guest lecture by Annie Fehrenbach, what are the three criteria for

obtaining a license to become a Registered Professional Forester (RPF)?

good moral character and reputable
7+ yrs forestry experience
pass exam

The O horizon in soil is:

Organic materials from dead plant and animal

materials.

Poor selection of road location would:

increase the potential of water quality

degradation.

ccording to the CA Forest Practice Rules,

NTMP stands for

Nonindustrial Timber Management Plan

Clearing and grubbing on road construction is:

required before excavation begins.

Forest transportation is:

Moving forest products from the forest landing to the market destination.

Best Management Practices (BMP’s) are:

-Sometimes called GPG’s or BPG’s.

-Methods accepted as superior to alternatives.

-Often a requirement for certification &

accreditation

Accidents are not injuries, but:

Occasionally result in property damage

A log merchandiser in a sawmill is:

a processing line used to measure logs and cut them to length.

Camera systems on grapple carriages

reduce the need for a:

Spotter

Which of the following is not a quality of

engineered wood products over conventional

lumber:

Improved cost

what is this

feller buncher

What the f##ing shi# is this

Wheeled grapple skidder

What the f##ing shi# is this

stroke boom delimber

What the f##ing shi# is this

Wheeled clambunk skidder

What the f##ing shi# is this

Front loader

What the f##ing shi# is this

forwarder

What the f##ing shi# is this

Steam donkey

What the f##ing shi# is this

wheeled cable skidder

What the f##ing shi# is this

wheeled harvester

What the f##ing shi# is this

swing yarder

Lumber recovery factor (LRF) is a measure of the number of board feet, lumber tally recovered from

each cubic foot of log input

True

Engineered wood products, such as laminated veneer lumber, exhibit more variability in strength than

solid-sawn lumber

False

according to the CA Forest Practice Rules, an “Exemption” is a type of harvest document.

True

In a sawmill, a circular saw typically has a thinner kerf compared to a band saw

False

A ditch relief culvert is a culvert used for non-fish bearing stream crossing

False

A logging truck that has a self-loader can carry a higher weight of logs than a logging truck with no

self-loader

False

For the same size/weight machine, the ground pressure of a crawler skidder is less than the ground

pressure caused by a rubber-tired skidder.

True

As a road grade increases, the spacing of ditch relief culverts generally increases.

False

Feller-bunchers equipped with boom-mounted felling heads generally cause less soil disturbance than

drive-to-tree feller-bunchers with carrier-mounted felling heads

True

Name 3 different types of road surface drainage templates?

insloped, outsloped, crowned

Name the 3 broad methods of extraction

Ground, cable, aerial

Name 3 different logging methods

Whole tree, tree length, cut to length (aka log length)

The primary goal for BMPs are:

protect water quality and site productivity

what typically restricts the use of helicopter logging

Money, weather, need for high-value timber to offset cost

What is NOT an advantage of mechanized processing over manual processing

increased ability to visually grade logs based on size, taper, defect, etc

Timber transportation in our region is dominated by:

stinger steer log trucks

what is true about helicopter logging

greater productivity than other forms of timber extraction

Assuming both weigh the same the ground pressure of a tracked skidder will be greater than the ground pressure of a rubber tired skidder

False

A forwarder in a cut to length system can also be used for loading logs onto log trucks

True

unloading vehicles used for log transport typically requires less time than loading

True

Log rafting is commonly used in small watercourses in the US especially when species are intolerant of wetting

False

Depreciation is the increase in a machines value over time.

False

When calculating machine rate, insurance, interest, and taxes are considered a part of the operating variable costs

False

The indirect costs incurred by an accident tend to be greater than the direct costs

True

The ratio of productive machine hours to scheduled machine hours is

utilization rate

logging contractors are often recommended to use ____ skid trails

designated

in california a class 1 stream us the ___ protected and have the ___ protective buffer

most, largest

a cut to length system will result in ___ soil compaction than a ground based skidding system

less

Soil compaction often occurs in a mechanized ground based skidding operation list factors affecting the degree of compaction

soil texture
soil moisture
amount of pressure
vibrations "
litter and duff

two negative impacts related to soil compaction

less infiltration into the soil causing overland flow
no room for root growth

control points in forest roads should

be determined at the beginning of road planning process

a ditch relief culvert aka cross-drain culvert

placed at a minimum of a 2% grade to facilitate flow

cable yarding:

requires more planning yhat ground based extraction

wheeled carrier

have less traction than tracked carriers

a cut slope ratio of 1:1 means that the cut slope will be a

100% slope

an in-sloped road:

required a series of ditch relief culverts

shoveling is

used on steeper slopes that other ground based methods could not reach

ridge top roads are often preffered iver other locations what is NOT an advantage

facilitation of ground based skidding

Four basic road templates

cut and fill
full bench
through cut
through fill

additional road width curve for a logging truck is

6 ft

mechanical shears are one type of felling head what are the other two

bar saw, hot saw

the design speed of a single lane forest road on rolling terrian is

20 mph

typical fill slope for common soil is

1.5:1