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when properly equipped, a front end loader can perfrom tasks associated with each of the following operations except __
dozer tasks
scraper jobs
trailer operations
clamshell operations
trailer operations
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what must you do before perfoming any maintenance action on a front end loader?
turn the loader off and set the parking break
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when equipped with a multipurpose bucket, what function can the front end loader not perform?
dragline
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what bucket control is used to raise and lower the bucket on a front end loader?
lift control lever
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to pick up materials from a stockpile with a front end loader, which method do you use?
scoop
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when loading a dump truck with a front end loader, how can you prevent damagiing the dump body of the truck?
dump the first load a little at a time
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what type of front end loader bucket should you use to handle sticky material that has a tendency to cling to the bucket?
clamshell
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how should a dump truck be positioned near the stock pile?
behind the stock pile
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how should you backfill a trench when you are using a front end loader with a narrow bucket?
backfill the area from an angle
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on a front end loader in what postion would you place the lift control lever in order to back drag the area?
float
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when stockpiling with a front end loader, what happens if material is worked too much?
segregation takes places
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unlke a regular front end loader, what is the advantage of a skid steer front end loader?
can operate in a smaller area
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where should you look to detmine the type of fluid ( engine oil, fuel, etc) required on a front end loader?
TO or owner manual
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on the skid steer front end loader, what will happen if you remove your hands or feet from the travel controls?
the equipment will stop moving
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to ensure good sweeeping action and avoid damage to equipment or bystanders, you should have a broom pattern that is only ___
2 or 3 inches wide
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when moving pallets with a forklift, why should you make sure the forks are spaced far enough apart?
to ensure load stability
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when operating a forklift, what do you do after you have the forks under the pallet?
accelerate slightly and pull back on the lift control lever
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When operating a front end loader with a forklift attachment, what control is used to adjust the forks forward?
Tilt
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What is the efficient operating range of a scarper?
300 feet
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What are the four basic cycles in any scraper operation?
Loading, hauling, spreading and returning
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What is the best reason to perform a downhill pull with a scraper?
To add more material per load
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Which of these loading methods generally achieves maximum productivity?
pusher
shuttle
straddle
backtrack
pusher
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Generally, push loaded scrapers should be loaded within a maximum stance of how many feet?
100 feet
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when operating a scraper, at what speed should you enter the loading area?
controlled high return speed
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When the scraper leaves a cut, why should you allow the scraper to travel a few feet before lifting the bowl to the carrying position?
to spread loose material piles in front of the bowl.
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Which statement describes the proper procedure to begin loading sand with a scraper?
Use the forward momentum of the scraper.
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When picking up loose shale with a scaper on level grade, the blade should be positioned to follow ___
planes of lamination
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When spreading material with scrapers, why should you route the scrapers so their tracks overlap?
To promote compaction
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When spreading materials with a scraper, why should you make the fill high on the outside edges?
to prevent the scaper from sliding over the edge
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For best results when loading wet or sticky material, how far should you bring the scraper tailgate forward each time?
one foot
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when using a scraper, what can you do to save valuable time on short radius turns?
a figure eight cycle
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if the haul road on which you are operating a scraper is rough and no grader is available, you should ___
lower the scraper bowl on the return trip to level the road.
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what can you do to eliminate bouncing when traveling with a scraper unit?
Carry the scraper bowl low to the ground.
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when towing a sheepsfoot roller on a road, you should work the roller in what direction?
Outside to the center
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What happens to the one to two inches of loose material left bye a sheepsfoot roller?
it assists in bonding successive layers
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What is the purpose of equipping steel wheel rollers with scraper blades?
Keep the drum rolls clean and free of debris
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how can you prevent asphalt from sticking to the drum rolls of a steel wheel roller?
by using water from spray bars
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When using a steel wheel roller to roll asphalt, how can you prevent the drive roll from pushing the asphalt up in front of the drum?
drive the roller forward.
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What can happen if you leave the steel wheel roller standing on a new road surface?
Depressions will be left in the pavement
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pneumatic tired rollers are used when the soil to be compacted requires __
a kneading action
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One difference between the self propelled pneumatic roller and the 13 wheel towed roller is that the self propelled roller ___
has a watering system
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how can you ensure uniform compaction with the pneumatic tired roller?
maintain even tire pressure
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what precaution must you take when using articulated steering on a grader with the blade positioned at an acute angle?
Running the blade into the rear tire on turns.
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what terms do we use to designate a graders moldboard ends?
heel and toe
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you regulate the depth of your cut with a grader by ___?
raising or lowering the toe of the moldboard
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To have the material cut by a grader form a windrow, you must __
lower the heel of the moldboard
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by adjusting the pitch of a grader moldboard, you change __
the cutting or dragging action of the cutting edge.
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what type of action occurs when you pitch the grader scafire to the rear?
tearing
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when removing teeth from a grader scafire, which tooth do you take out first?
center of the scafire
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what happens if you lower the ripper teeth on a grader too much?
it raises the graders rear end
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after using a scafier and ripper, what is the next step you perform with a grader on a road project?
establish drainage
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the grading operation that spreads material away from the ditching operation and toward the middle of the road we call __
the shoulder pickup
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when cutting the back slope of a ditch with a grader, position the circle and blade to ensure the material flows ___
inside the right rear tandem tire.
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how can you avoid leaving an edge when making the final leveling pass with a grader?
lift the trailing edge of the blade
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windrows piled in front of the rear grader tires when leveling affect __
traction and accuracy
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Besides adding to the appearance of a job, what is the benefit of sloping the bank of a ditch?
Prevents the bank from crumbling
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Preparing the downward slope from the centerline to the shoulder of a road is ....
The final step in road grading.
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Before making any grading cuts on a project, what do you examine?
Hub Stakes
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Ideally, we construct road mix pavements during dry weather when the temperature is at least...
50 degrees
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When mixing bitumen with a grader, turn the material from one side of the road to the other a minimum of
four times
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Other than on the equipment itself, where can you find lube charts that pertain to a particular piece of equipment?
Technical Orders
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Why should the point of th V tread on the grader front tires meet the ground last?
To make the fron tires wear longer.
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Besides the normal-up-and-down blade controls, what other control levers may be on some dozers?
Tilt and angle.
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On the crawler type dozer, why do you allow the engine to idle three to five minutes before shut down?
Prevent damage to the hydraulic pump
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The attachment of a rear-mounted ripper to a dozer does not seriously affect the
maneuverability of the dozer
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what do you do if you are ripping material and your dozer continually lags or stalls?
Reduce the number of teeth.
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When pushing material with a dozer, what decreases the response time when using the blade-lift control?
Added weight of material on the dozer blade
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What can cause a bulldozer to nose up and down, creating an uneven work surface?
Raising and lowering the blade too much
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Use side-by-side dozing for hauls of at least
50 feet
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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 ar you performing?
Slot dozing
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You are about to remove a medium sized tree. For your initial contact with the tree, in what position do you place your dozer blade?
As high as it will go
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If your dozer can not initially push over a large tree, what do you do?
Cut the roots with the blade and push the tree over
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How do you remove stumps with a dozer?
Cut the roots of the stump and push it out
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When removing rock with a dozer, if you repeatedly let the corner of the blade dig, what can happen?
Dozer engine will stall
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To make a side-hill cut with a dozer, how do you start the cut?
straigh down the hill
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How far from the construction stakes do you line up your dozer when building a V shaped ditch?
2 feet
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At least how many inches of solid material must be over a culvert before you can cross it safely with a dozer?
12 inches
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Finishing with a dozer is best done at what speed and capacity?
Highest speed possible with the blade at least half full of material
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When constructing a stockpile with a bulldozer, why should you gradually raise the blade at the end of the cut?
To avoid creating an abrupt ridge
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What happens if you stockpile aggregate blends of material (course and fine particles) in a cone shaped mound?
Particle segregation can occur
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What is the minimum slide slope ration for berms?
1:1 Ration
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What are the two main element that cause erosion on a berm?
Weather and rodents
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When using your dozer as a pusher to load a scraper, what happens if you push too hard?
The scraper can jackknife and cause damage or injury.
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On a dozer, what type of connection do we use to tow equipment?
Tongue and drawbar
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How do you usually rate the power of a winch on a dozer?
Maximum pull exerted on its line
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Before using a winch on a dozer that is in a stationary position, you must
line up the dozer with the pull
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Why do you clean the mud out of the tracks of you dozer?
all of the above
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Fuel you dozer at the end of the workday in order to ..
prevent condensation in the fuel tank
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What happens if you operate your dozer with the tracks too tight?
Engine horspower is reduced
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What is the correct adjustment (distance) between the bottom of the straightedge to the top of the plate on a dozer track when checking tension?
One to one and on half inches
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How often do you change the secondary element of the air intake breathers on a dozer?
Once a year
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What is the most important part of changing the cutting edges on a bulldozer?
Making sure the cutting edges are blocked
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What color do we use to make change to an as-built drawing?
Red
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Which of these jobs would require a thourough inspection, but would not require an AF Form 103, Base Civil Engineer Work Clearance Request?
excavating by hand
plowing or tilling the soil
constructing a V ditch with a grader
Using the auger on the back of an industrial tracto
plowing or tilling the soil
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What is the purpose of obtaining an AF Form 103 before excavating?
Prevent loss of life
prevent disturbance of aircraft
prevent unschedule utiliity outage
all of the above
all of the above
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When using a trencher, the cuttings can be pulled back away from the ditch by using a __
pair of auger flights
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When excavating a ditch, what happens if you move your trencher forward too fast?
The trencher will stall
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If you know the location of an obstacle where you are trenching, you must ___
stay at least a foot away from it
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What limits the digging depth of a backhoe?
Lenght of the boom and dipper stick
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On a normal backhoe, wher do the five cylinders that control the operation of the swing, boom, dipper stick, and bucket receive hydraulic pressure?
Tractors hydraulic system
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If you leave the rear tires on the ground when operating a backhoe, what effect can this have?
Reduces machine stability
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If the bucket stalls while you are excavating with a backhoe, __
Raise the boom slightly
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If you are operating a backhoe and someone steps in the swing radius of the bucket,
ground the bucket until the person moves out of the area
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Which is not a saftey factor you must consider when loading materials with a backhoe?
Ensure the hooks are properly placed
do not swing the load too far to one side
keep everyone away from the suspended load
be sure to have an AF form 103 in you possession
Be sure to have an AF form 103 in your possession
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What makes the rubber tired excavator a highly mobile piece of equipment?
It operates with self propelled wheel mountings
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How do you disengage the blade/swing interlock switch on an excavator?
Lower the blade
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How do you activate the impactor on a excavator?
Depress the attachment-control pedal
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An advantage of using the compactor attachment on a excavator is that it
helps seal the surface against evaporation of internal moisture
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While excavating a ditch, which construction stakes should not be disturbed?
Offset stakes
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What does a hub stake indicate on an excavation site?
Exact position or elevation
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When making a rectangular-shaped excavation, why is it important to plan the digging sequence?
To prevent working into situations where the machine cannot be repositioned.
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When doing an excavation, where do you lose most of you digging time?
Repostitioning the machine
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When digging a basement, if the first cut is to be made on the west line of the project, the starting point should be where the boom and dipper stick reach the ___
northwest corner
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What safety precaution prevents cave-ins during excavation?
Shore the sides of the excavation
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The best way to drain the water out of a trench is to use a ____
pump
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In a diaphragm pump, what type of force moves liquid from the intake of the discharge valve?
Reciprocating motion
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The mud hog and water hog are considered what type of pump?
Diaphragm
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The most convenient way to mount equipment on a an industrial tractor is with a __
Three point hitch
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Which statement describes a floating drawbar?
a cross bar fastened to the lower links of a three point hitch
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On an industrial tractor fitted with a power take off when, if ever, should the PTO not be engaged?
When no PTO driven equipment is mounted to the tractor.
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What is the approximate diamater of an auger that we use to dig postholes?
Nine inches
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A front end load bucket attachment on an industrial tractor is best suited for ___
excavating light material
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What are the two types of certification required by Department of Defense/Air Force to operate on a flight line?
Initial certification and periodic recertification
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What air force document do we use to document annual certification training?
1098
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