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Dirt Boy CDC > Vol 3 > Flashcards

Vol 3 Flashcards

1
Q

How many personnel are required (when they are available) to remove or install a dump truck tailgate?

A

Three

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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

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3
Q

What function can the front-end loader not perform when equipped with a multipurpose bucket?

A

Dragline

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4
Q

What front-end loader bucket control is used to raise and lower the bucket?

A

Lift Control Lever

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5
Q

Which method do you use to pick up materials from a stockpile with a front-end loader?

A

Scoop

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6
Q

What happens if material is worked too much when stockpiling with a front-end loader?

A

Segregations takes place

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7
Q

What happens if you release the skid-steer loader the travel controls levers?

A

The equipment will stop moving

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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.

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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

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10
Q

The attachment of a rear-mounted ripper to a dozer does not seriously affect the

A

maneuverability of the dozer.

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11
Q

You would use the side-by-side dozing method only for hauls of at least

A

50 feet

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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

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13
Q

How do you remove stumps with a dozer?

A

Cut the roots of the stamp and push it out

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14
Q

How far from the construction stakes do you line up your dozer when building a V-shaped ditch?

A

Two Feet

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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

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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.

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17
Q

What two main elements cause erosion on a berm?

A

Weather and Rodents

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18
Q

What type of connection do we use to tow equipment with a dozer

A

Tongue and Drawbar

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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
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20
Q

Why do you fuel your dozer at the end of the workday?

A

To prevent condensation in the fuel tank

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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

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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

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23
Q

What component should you never reach through while operating a grader

A

The Steering Wheel

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24
Q

How many control levers are typically on a grader?

A

9 Levers

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25
Q

What terms do we use to designate a grader’s moldboard ends?

A

Heel and toes

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26
Q

To have the material cut by a grader form a windrow, you must

A

raise the heel of the moldboard

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27
Q

By adjusting the pitch of a grader moldboard, you change the

A

cutting or dragging action of the cutting edge.

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28
Q

What type of action occurs when you pitch a grader scarifier to the rear?

A

Tearing

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29
Q

Which tooth do you take out first when removing teeth from a grader scarifier?

A

Center of the scarifier.

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30
Q

What grading operation spreads material away from the ditching operation and toward the middle of the road?

A

Shoulder pickup

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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.

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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.

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33
Q

Preparing the downward slope from the centerline to the shoulder of a road is

A

the final step in road grading.

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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

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35
Q

What must you never do when changing cutting edges and end bits?

A

Leave the engine running.

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36
Q

How many degrees to each side of center can an articulating scraper turn?

A

85-90

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37
Q

When picking up loose shale with a scraper on level grade, the blade should be positioned to follow

A

Planes and Lammination

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38
Q

How do you begin a tractor trailer pre-trip inspection?

A

By opening the engine compartment.

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39
Q

How many inches of play are acceptable in a 20-inch tractor trailer steering wheel?

A

Two.

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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

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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

Dirt Boy CDC (3 decks)

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