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Flashcards in Vol 3 Deck (100)
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1
Q
How many personnel are required (when they are available) to remove or install a dump truck tailgate?
A
Three
2
Q
When properly equipped, a front-end loader can perform tasks associated with each of the following operations except?

a. dozer jobs.
b. scraper jobs.
c. trailer operations.
d. clamshell operations.
A
Trailer Operations
3
Q
What function can the front-end loader not perform when equipped with a multipurpose bucket?
A
Dragline
4
Q
What front-end loader bucket control is used to raise and lower the bucket?
A
Lift Control Lever
5
Q
Which method do you use to pick up materials from a stockpile with a front-end loader?
A
Scoop
6
Q
What happens if material is worked too much when stockpiling with a front-end loader?
A
Segregations takes place
7
Q
What happens if you release the skid-steer loader the travel controls levers?
A
The equipment will stop moving
8
Q
How do you ensure good sweeping action and avoid bystanders or damaging equipment when using the skid-steer loader with the sweeper attachment?
A
Use a broom pattern two to three inches wide.
9
Q
How are most attachments controlled once the auxiliary hydraulics are activated in the skid-steer loader?
A
Toggle switches on the travel controls
10
Q
The attachment of a rear-mounted ripper to a dozer does not seriously affect the
A
maneuverability of the dozer.
11
Q
You would use the side-by-side dozing method only for hauls of at least
A
50 feet
12
Q
What dozing method are you performing 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?
A
Slot dozing
13
Q
How do you remove stumps with a dozer?
A
Cut the roots of the stamp and push it out
14
Q
How far from the construction stakes do you line up your dozer when building a V-shaped ditch?
A
Two Feet
15
Q
What speed and capacity is best when performing finishing work with a dozer?
A
Highest speed possible with the blade at least half full of material
16
Q
What happens if you stockpile aggregate blends of material (course and fine particles) in a cone-shaped mound (sloping sides)?
A
Particle segregation can occur.
17
Q
What two main elements cause erosion on a berm?
A
Weather and Rodents
18
Q
What type of connection do we use to tow equipment with a dozer
A
Tongue and Drawbar
19
Q
Why do you clean the mud out of the tracks of your dozer?
A
- To keep Rollers form freezing in place
- To find Lube points
- Keep Rollers from flat spots
20
Q
Why do you fuel your dozer at the end of the workday?
A
To prevent condensation in the fuel tank
21
Q
What action is the most important part of changing the cutting edges on a bulldozer?
A
Making sure the cutting edges are blocked
22
Q
What could happen when using articulated steering on a grader with the blade positioned at an acute angle?
A
Blade could run into the rear tire on turns
23
Q
What component should you never reach through while operating a grader
A
The Steering Wheel
24
Q
How many control levers are typically on a grader?
A
9 Levers
25
Q
What terms do we use to designate a grader’s moldboard ends?
A
Heel and toes
26
Q
To have the material cut by a grader form a windrow, you must
A
raise the heel of the moldboard
27
Q
By adjusting the pitch of a grader moldboard, you change the
A
cutting or dragging action of the cutting edge.
28
Q
What type of action occurs when you pitch a grader scarifier to the rear?
A
Tearing
29
Q
Which tooth do you take out first when removing teeth from a grader scarifier?
A
Center of the scarifier.
30
Q
What grading operation spreads material away from the ditching operation and toward the middle of the road?
A
Shoulder pickup
31
Q
When cutting the back slope of a ditch with a grader, you position the circle and blade to ensure the material flows
A
inside the right rear tandem tire.
32
Q
How can you avoid leaving an edge when making the final leveling pass with a grader?
A
Lift the trailing edge of the blade.
33
Q
Preparing the downward slope from the centerline to the shoulder of a road is
A
the final step in road grading.
34
Q
Other than on the equipment itself, where can you find lube charts that pertain to a particular piece of equipment?
A
Technical Orders
35
Q
What must you never do when changing cutting edges and end bits?
A
Leave the engine running.
36
Q
How many degrees to each side of center can an articulating scraper turn?
A
85-90
37
Q
When picking up loose shale with a scraper on level grade, the blade should be positioned to follow
A
Planes and Lammination
38
Q
How do you begin a tractor trailer pre-trip inspection?
A
By opening the engine compartment.
39
Q
How many inches of play are acceptable in a 20-inch tractor trailer steering wheel?
A
Two.
40
Q
When conducting an air system check, at approximately what pressure will the parking brake valve “pop” out, indicating an air system failure?
A
40 PSI
41
Q
How do you prevent the semitrailer from moving while you back the tractor under it?
A
Block the trailer wheels with wood blocks (chocks).
42
Q
How do breakaway trailers differ from cargo trailers?
A
They are built lower to the ground.
43
Q
What position is best for unloading a tractor trailer at a warehouse dock?
A
Back toward the left and turn toward the dock.
44
Q
What factor(s) determines the method of securing cargo?
A
Type of cargo
speed of the vehicle
and distance to be traveled.
45
Q
When hauling construction materials, you should use load binders to
A
tighten the chains that secure the load to the trailer.`
46
Q
What can happen to a chain used for tying down a rubber tired loader if a spring binder is not used?
A
The Chain can Loosen
47
Q
Where on a forklift is the load capacity displayed?
A
Data plate.
48
Q
When will the forklift be driven with the load upgrade?
A
Grade is in excess of 10 percent.
49
Q
When operating a forklift, what do you do after you have the forks under the pallet?
A
Accelerate slightly and pull back on the lift-control lever.
50
Q
When operating a loader with a forklift attachment, what control is used to adjust the forks forward?
A
Tilt.
51
Q
What number of feet is the minimum clearance required between power lines and any part of a hydraulic crane or its load?
A
Ten
52
Q
What factor is the major cause of accidents involving hydraulic cranes?
A
Improper crane operation.
53
Q
If a crane equipped with a clamshell needs to travel a long distance, what should you do with the clamshell?
A
Remove the bucket and haul it in a truck.
54
Q
Which direction should you wind wire rope onto the drum of a crane from a storage reel?
A
The same direction as the reel.
55
Q
When winding wire rope onto the hydraulic crane hoist drum, which hammer should NOT be used to tap the rope?
A
Steel
56
Q
How is chain size is determined?
A
By the diameter in inches of the rod used to make the links.
57
Q
Which factor has the greatest effect in shortening the useful life of nylon rope?
A
Improper care
58
Q
Wire rope is classified by all of the following except
A
its diameter
59
Q
What happens to the load stress on the leg of a sling as its angle decreases?
A
It increases because the angle decreases.
60
Q
While trenching, which construction stakes should not be disturbed?
A
Offset Stakes
61
Q
When using a trencher, the cuttings can be pulled back away from the ditch by using a
A
Pair of Auger flights
62
Q
If you know the location of an obstacle or utility where you are trenching, you must
A
stay at least a foot away from it.
63
Q
If you leave the rear tires on the ground when operating a backhoe, what effect can this have?
A
Reduce backhoe's stability
64
Q
What action do you take if the bucket stalls while you are excavating with a backhoe?
A
Raise the boom slightly.
65
Q
When making a rectangular-shaped excavation, why is it important to plan the digging sequence?
A
To prevent working into situations where the excavator cannot be repositioned.
66
Q
When excavating a large area, 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
A
Northwest Corner.
67
Q
How do you activate the impactor on an excavator?
A
Depress the attachment control pedal.
68
Q
An advantage of using the compactor attachment on an excavator is that it
A
Gets into areas where space is restricted.
69
Q
What two types of excavations can be used to protect workers from cave-ins?
A
Sloping and Benching
70
Q
The best way to drain the water out of a trench is to use a
A
Pump
71
Q
Excavated areas, whether they are open for only a day or for weeks, must have what devices to ensure safety?
A
Lights
Fencing
Barricades
72
Q
Why should you use caution if you fill the water truck with a fire hose connected to a fire hydrant?
A
The hose may come out of the tank and hit someone.
73
Q
What direction should you work the roller when towing a sheepsfoot roller for a road project?
A
Outside to the center.
74
Q
What piece of equipment is usually used to tow a sheepsfoot roller on a construction site?
A
Dozer
75
Q
How can you prevent asphalt from sticking to the drum rolls of a steel-wheel roller?
A
By using water from spray bars.
76
Q
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?
A
Drive the roller forward
77
Q
Pneumatic-tired rollers are used when the soil to be compacted requires
A
a kneading action.
78
Q
The most convenient way to mount equipment on an industrial tractor is with a
A
three-point hitch.
79
Q
Which statement describes a floating drawbar?
A
A crossbar fastened to the lower links of a three-point hitch.
80
Q
Whom must you check with first before you begin any flight line sweeping operations?
A
Base operations personnel.
81
Q
What factor is the most important in the operation of the air sweeper?
A
Cleanliness
82
Q
The air sweeper is best described as what type of machine?
A
Closed-Loop
83
Q
How is fine dust removed from the air stream before it returns to the air sweeper’s blower?
A
Skimming it off in the separator.
84
Q
What action must you take frequently when using the air sweeper to sweep over wet pavement?
A
Dump the sweeper hopper.
85
Q
For best results and prolonged sweeper parts life, how should you wash the air sweeper hopper?
A
From the right and left inspection doors first.
86
Q
What component drives the sweeping unit on a front-mounted broom sweeper?
A
Hydraulic motor.
87
Q
What type(s) of drive systems are available for self-propelled pavers?
A
Wheels and tracks.
88
Q
How much compaction can you expect from the vibratory screed of a paving machine?
A
80 percent.
89
Q
A paver’s screed is said to be “zeroed” out when what condition exists?
A
The screed is perfectly level.
90
Q
What substance can be used to aid in the clean-up of the paving machine?
A
Asphalt release agent.
91
Q
When operating a rollover snowplow, what speed will give you the best rolling action off the end of the blade?
A
30 mph.
92
Q
When sweeping, what type of bristle is best for flipping snow?
A
Poly
93
Q
The snow and ice control (S&IC) center should be equipped with
A
color-coded layout maps showing priorities.
94
Q
During snow removal, which issue will determine your actual clearing pattern?
A
Wind speed and direction.
95
Q
All snow removal equipment operating in the area of aircraft movement must maintain radio contact with the
A
Control Tower.
96
Q
When the windrows get too heavy for the sweeping operation, what equipment should you use to displace the snow?
A
Plows
97
Q
When crosswinds are combined with a heavy snowfall, where must you concentrate snow removal operations?
A
Runway centerline area.
98
Q
When possible, you should clear snow from airfield in-pavement lights with a snow broom or
A
a snowplow blade with rubber cutting edges.
99
Q
What is the runway ice detection system (RIDS) designed to minimize?
A
Chemicals.
100
Q
Which reading is not collected by the central processing unit (CPU) of the runway ice detection system (RIDS)?
A
Ice Thickness