Engineer Recon

Question 1

What defines a Zone?

Answer 1

Lateral Boundaries

Question 2

What are the tasks of Zone Recon?

Answer 2

Threat - Find and report forces

Infrastructure - Municipal (utilities, sewage, transpo, commo)

Society - Size, location, composition

Terrain - Obstacles, contaminated areas

Question 3

What are the engineers for the Commander?

Answer 3

“Eyes and Ears” by bringing both technical and tactical skills to recon missions.

Question 4

What are the three types of recon?

Answer 4

Zone
Area
Route

Question 5

What is Area Recon?

Answer 5

Gaining detailed information about a definite geographical area such as towns, woods, or streams - crossing sites.

A town, ridge line, woods, or other features that friendly forces intend to occupy or pass through.

Question 6

Define Area in Area Recon.

Answer 6

Delineated with a single continuous line enclosing the area, such as an AO.

Similar to Zone Recon, if AO is a large complex or complex urban area, you can delineate the Area with a LD and LOA.

Use graphic control measures that include routes to and within the AO.

Question 7

What’s the difference between Area and Zone Recon?

Answer 7

Same tasks for each (TIST) but an Area recon is much smaller.

Question 8

What is Route Recon?

Answer 8

Obtains information about:

Critical terrain features along route/road

Obstacles

Route conditions and trafficability

Enemy Activity

Question 9

What are the types of Route Recon?

Answer 9

Hasty - conducted to determine the immediate military traffic of a specific route

Deliberate - used when time and qualified personnel are available

Question 10

What’s required on a route overlay?

Answer 10

Route Classification formula

Minimum of two grid ref points

Title Block

North Arrow

Route drawn to scale

Start and End Point

Question 11

What are the parts of a Route Classification Formula?

Answer 11

Route Width

Route Type

Lowest Military Load Classification (MLC)

Lowest Overhead Clearance in Meters

Obstructions to traffic flow (OB), if applicable

Special Considerations

Question 12

What are the variables used in the Route Classification formula for Route Types

Answer 12

X - All weather route. Never closed for weather.

Y - Limited. All weather closed for short periods (up to one day at a time) by adverse weather during which heavy use would lead to collapse.

Z - Fair Weather. Passable only in fair weather.

Question 13

What markers hows the beginning and end of a road?

Answer 13

“V” Shape on either side at the beginning and end.

Question 14

What are the types of Bypass

Answer 14

Easy

Difficult

Impossible

Question 15

What’s a Constriction?

Answer 15

Reductions in traveled-way widths.

Question 16

What’s the symbol for a constriction?

Answer 16

Looks like two triangles pointed at each other. The width of the constriction is on the the left and the length is on the right.

Question 17

What’s the limit on reporting underpass restrictions?

Answer 17

Less than 4.3 m

Question 18

What’s the symbol for underpass?

Answer 18

A “hump” over the route with the width in meters on the left and the min/max overhead clearance if different.

Question 19

What form is used for Tunnel Recon?

Answer 19

DA Form 1250

Question 20

What are the types of Tunnel Bores?

Answer 20

Square with arched ceiling

Horseshoe

Elliptical

Semicircular

Question 21

What’s the symbol for a tunnel?

Answer 21

Semicircle with bypass symbol pointing to the tunnel on the map. On the left is min/max OHC, below is min/max TWW, and on the right is the length.

Question 22

What’s Ford Recon?

Answer 22

A location in water where physical characteristics of the bottom and approaches permit the passage of personnel and/or vehicles and other equipment whose suspensions remain in contact with the bottom.

Question 23

Which was the symbol for a ford oriented?

Answer 23

It describes the right bank when standing in the ford and and looking down stream.

Question 24

What is Ferry Recon?

Answer 24

Site where traffic and cargo are taken across a river or other water barrier by floating vessel.

It’s considered an obstruction to traffic flow.

Must be (OB) on route classification

Question 25

What is Road Recon? What form is used?

Answer 25

Collects detailed information regarding characteristics and trafficability of a road section within a route.

DA 1248

Question 26

What does a road consist of?

Answer 26

Road Surface, Base Course, and Subgrade

Question 27

What slopes must you report on a route-classification overlay and what is considered and obstruction?

Calculate slope to the thousandths and then round to nearest whole number after multiplying by 100.

Answer 27

> 5% and > 7% is an obstruction

Question 28

What’s the symbol for slope?

Answer 28

Double headed arrow with the % written above.

Question 29

What’s the curve formula?

Answer 29

R = (C^2 / 8M) + (M/2)

Question 30

What radii must you report?

Answer 30

Radius up to 45 and radius < or equal to 25 are obstructions

Question 31

What is the symbol for a curve

Answer 31

A triangle pointing to the curve with a number under it for the radius. If multiple curves in a section, the symbol is a triangle with a triangle in it with # of curves/smallest radius underneath.

Question 32

What form is Bridge Recon recorded on?

Answer 32

DA From 1249

Question 33

What does LARS stand for?

Answer 33

Left Add Right Subtract

Question 34

What does class stand for?

Answer 34

Gross Weight (Tons) Tracked

85% of Gross Weight Wheeled

Question 35

What’s the formula for Gross Weight on a wheeled Vehicle?

Answer 35

WT = Area(tire) x P(tire pressure) x Number of Tires /2000

A is L x W where L is the length of the tire touching the ground

P is tire pressure if unknown assumed 75psi for a 2 1/2 ton

Always round up

Question 36

What’s the formula for tracked vehicles?

Answer 36

Length of Track in contact x Width x Number of tracks

Round up

Question 37

When towing or combining two vehicles what’s the formula for CCN?

Answer 37

Combined Classification Number = If A + B < 60 then .9 (A + B) otherwise A + B

Round up and mark with a C on the vehicle sticker