Shared Flashcard Set

Details

set b vol 3
volume 3. specific contingency
101
Civil Engineering
Professional
07/13/2013

Additional Civil Engineering Flashcards

 


 

Cards

Term
The purpose of revetments is to
Definition
protect parked aircraft and essential facilities.
Term
How are the sides and cross panels of the A–1 and B–1 revetments held together?
Definition
They are held together with pins.
Term
The best way to repair damage to a large section of a revetment is to
Definition
remove the damaged section.
Term
What two types of concrete revetments are replacing A1 and B1 metal revetments?
Definition
Bitburg and concrete bins.
Term
Concertainer revetments are lined with a
Definition
geofabric liner.
Term
What is the minimum amount of people required to erect a Concertainer revetment?
Definition
2
Term
Concertainer revetments are connected together using
Definition
connecting pins.
Term
Concertainer revetments provide the same protection as
Definition
B–1.
Term
Which is considered to be a quick and easily constructed temporary culvert?
Definition
lean-to
Term
Which culvert is designed to withstand heavy water flow?
Definition
log
Term
You place sandbags, burlap sacks, or canvas around a metal planking culvert in order to
Definition
give the culvert a better watertight seal.
Term

You are preparing to construct a timber bridge: for this task, your most important

consideration is to

Definition
insure the bridge is constructed according to its projected use.
Term
If at all possible, the construction of a soil-cement road should be restricted during
Definition
freezing weather.
Term

When treating a soil-cement road area with cement for final finishing, you divide the areas

into sections. The purpose of this is to

Definition
make it possible to complete an area in one working day
Term
A sanitary landfill should not be located near
Definition
a spring
Term
When abandoning a sanitary landfill trench, cover it with at least
Definition
2 feet
Term

Where do you place stones that weigh less than 10 pounds when you are constructing berms

or dikes?

Definition
Lower center of the berm.
Term
Which fuel bladder berm is the least desirable?
Definition
Above ground level
Term

In the event fuel should catch fire in the berm, what can you do to reduce the risks of the

remaining material from burning?

Definition
Open the drain.
Term
What is one of the first things you do after constructing a lagoon?
Definition
Secure the area with a fence
Term
The purpose of building adjustable outlet pipes to extend through the lagoon’s berm is to
Definition
control the operating depth.
Term
You slope the bottom of evaporation lagoons
Definition
for quick and complete draining
Term
What is the first thing to assemble on the temper tent?
Definition
tent frame
Term
We join the sections of the temper tent together with
Definition
beckets.
Term
How many sections of the temper tent does a fly section cover?
Definition
two
Term
When disassembling a temper tent, when do you remove a single ply floor?
Definition
After you remove all internal components.
Term
What is the newest type all–purpose tent type shelter used by the Air Force?
Definition
Small Shelter System Tent
Term
The Small Shelter System Tent can withstand steady wind loads of
Definition
50 knots
Term
How many types of liners does the Small Shelter System tent use?
Definition
3
Term
Which liner do you install first when erecting the Small Shelter System Tent?
Definition
mid liner
Term

The Environmental Control Unit should be approximately how far away from the SSS tent

end wall?

Definition
12 inches
Term
Inspect the Small Shelter System Tent electrical cable assemblies every
Definition
30 days
Term
When the shelter is placed in storage for a lengthy period, inspect it at
Definition
six month intervals.
Term

When you are making a repair to a small tear on the Small Shelter System Tent, the patch

material must extend a minimum of how many inches around all sides of the tear?

Definition
3 inches
Term

How many (if any) damaged parts can you have in an oxyacetylene welding system and still

be able to use the system?

Definition
none
Term
What is used inside acetylene cylinders to stabilize the pressurized acetylene?
Definition
Acetone.
Term
Oxygen and acetylene hoses are colored
Definition
green or black and red or maroon respectively
Term
Why must you crack open each cylinder outlet valve before you attach regulators?
Definition
To blow out any dirt lodged in the outlet nipple
Term

When assembling oxyacetylene equipment, you open the acetylene cylinder valve a

maximum of

Definition
1½ turns
Term
A safety feature of oxyacetylene equipment is that
Definition
acetylene connections have right-hand threads and oxygen connections have left-hand threads
Term
When lighting the oxyacetylene torch, you open the
Definition
acetylene valve first.
Term
Why is a pure acetylene flame smoky?
Definition
There is not enough oxygen in the air to burn the acetylene completely
Term

Which oxyacetylene welding flame produces a white streamer or “feather” of acetylene at

the end of the inner cone?

Definition
Carbonizing.
Term
When closing down an oxyacetylene unit, what valve do you close first?
Definition
Oxygen torch valves.
Term
To relieve the pressure on the diaphragm of a two-stage oxyacetylene regulator, you
Definition
turn the adjusting screw counterclockwise.
Term

If a flashback occurs in oxyacetylene welding equipment, your first action is to immediately

close the

Definition
oxygen torch valve
Term

How is cutting oxygen released from the high pressure oxygen valve on the oxyacetylene

cutting torch

Definition
By a trigger or lever.
Term
What flows through the central orifice of an oxyacetylene cutting torch tip?
Definition
Cutting oxygen.
Term
The oxygen blast of an oxyacetylene cutting torch combines with red hot metal and
Definition
burns it into oxide.
Term
The slot made during oxyacetylene cutting we call the
Definition
kerf
Term
We can do oxyacetylene cutting without any special precautions on
Definition
all low and medium carbon steels.
Term

To what color do you preheat low-carbon steel before you open the oxyacetylene cutting

oxygen valve?

Definition
red
Term
To do straight-line cutting with the oxyacetylene torch, mark the line cut clearly with
Definition
center punch marks.
Term

After you preheat a piece of metal plate to a kindling temperature, how high above the plate

do you raise the oxyacetylene cutting torch to pierce the metal

Definition
½-inch above normal.
Term
Which oxyacetylene cutting technique is one of the more difficult to accomplish?
Definition
Beveling.
Term

What type of gouging starts with the tip of the torch being held at a 20° angle to the

horizontal?

Definition
progressive
Term
During progressive gouging, what happens if you move the cutting torch too slow?
Definition
Makes the cut too wide and deep.
Term
How many types of flame-gouging techniques are there?
Definition
2
Term

What is a very simple but critical task that you must always do before you light the torch of

an oxyacetylene cutting outfit?

Definition
Check the entire outfit for gas leaks.
Term
To repair a leak around the needle valves, tighten the
Definition
packing gland nut
Term

What metal must never be used on an acetylene hose because it forms an unstable

compound with acetylene

Definition
copper
Term
When cleaning a tip, you must use straight back-and-forth motion to keep from
Definition
enlarging the orifice.
Term

Which rapid runway repair (RRR) equipment set enables the completion of at least 6 craters

within 4-hours?

Definition
r-1
Term
What type of crater repair do we make to upgrade expedient repairs?
Definition
Sustainment.
Term

You are surveying pavement damage from an attack with conventional weapons. You find

the attack has penetrated and disturbed the runway subgrade for an area of up to 20 feet in

diameter. You would classify this damage as a

Definition
Large crater
Term

Which rapid runway repair (RRR) factor is important in determining the principal crater

types?

Definition
depth of burst
Term
When an enemy attack becomes eminent, the rapid runway repair (RRR) assets must be
Definition
equally divided and dispersed to designated areas.
Term

When are you allowed to disperse rapid runway repair (RRR) equipment to designated

staging areas situated near the runway?

Definition
After you receive an “all clear”.
Term
What does the acronym MOS stand for?
Definition
Minimum operating strip.
Term
At present, how many crater repair methods does the Air Force use?
Definition
three
Term
Which equipment do we use to clear an area where AM–2 mats are to be assembled?
Definition
grader
Term

Who determines how much fill material is needed at the rapid runway repair (RRR) crater

sites?

Definition
Crater oic
Term
What is the first action you take when repairing a damaged utility located in a bomb crater?
Definition

 

 

 

 

Isolate the damaged utility.

Term
When the dozer enters a rapid runway repair (RRR) bomb crater, the crater should be
Definition
¾ full.
Term
How much of the crater repair does the sand-grid placement make up?
Definition
16 inches.
Term
Joining two folded fiberglass mats (FFM) together requires the use of a
Definition
2 feet, 1¼-inch wide two-ply panel.
Term
When joining two folded fiberglass mats (FFM) together, always pull
Definition
in a direction that is perpendicular to the hinges
Term

Leave a horizontal gap of 1 inch between the edges of the folded fiberglass mat (FFM) and

the ramp to allow for

Definition
mat removal or replacement
Term
How many rows will one standard pallet of AM–2 mats cover?
Definition
2
Term

Which item allows two AM–2 mat laying teams to start work in the middle of a runway and

work in opposite directions towards the end of the runway?

Definition

 

 

 

Starter keylock.

Term
The centerline lights in an AM–2 mat package are installed every
Definition
100ft
Term

Soil material supporting AM–2 matting must have a California Bearing Ratio (CBR) rating

of at least

Definition
10
Term

You are spotting AM–2 mat pallets around a mat laying area. To do this properly, you

should place them in the center of the runway at

Definition
4-foot intervals
Term
Check the alignment of AM–2 matting after
Definition
laying each row
Term
Why are AM–2 mats made to fit together with a loose fit?
Definition
allows for expansion of subgrade
Term
When placing AM–2 matting, install typical keylocks at intervals of
Definition
100ft
Term
When anchoring AM–2 matting, make the anchor ditch
Definition
18 to 24 inches deep and cut it at a 15° to 30° angle.
Term
Which is the first step in disassembling an AM–2 mat runway?
Definition
Cut all slice plates.
Term
Which method is considered the quickest, but has limited success in repairing spalls?
Definition
cold mix asphalt
Term
Before you can use any material on DOD airfields, you must make sure it
Definition
is certified for use
Term
Reflectorized paint is preferred for expedient paint striping when you are
Definition
seeking improved night vision
Term
Which of these pigmented paint binders tends to bleed on asphalt?
Definition
Alkyd-chlorinated rubber
Term

What is the responsibility of the 2–person crew on the minimum operating strip (MOS)

marking team?

Definition
paint stripping
Term
During expedient operations, sufficient white paint must be available to complete a
Definition
10,000 foot MOS
Term

During expedient operations, which area on the minimum operating strip (MOS) is

normally laid out first?

Definition
MOS threshold.
Term

What are the primary materials we use for the expedient marking of the minimum operating

strip (MOS)?

Definition
White paint with reflective beads
Term

During expedient operations, what can you use to paint areas that are not accessible with the

paint machine?

Definition
A paint wand
Term
During expedient operations, how soon do we begin the obliteration of airfield markings?
Definition
After you do as much white painting as practical
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