EXAMS TEST PAPER QUESTIONS AND ANSWERS
SURE A+
✔✔Minor Terrain Features (Elevation and Relief) - ✔✔6. DRAW
A draw is a less developed stream course than a valley. Standing in a draw, the ground
slopes upward in three directions and downward in the other direction.
The contour lines depicting a draw are U-shaped or V-shaped, pointing toward high
ground.
In a draw, there is essentially no level ground and little or no maneuver room within its
confines.
7. SPUR
A spur is a short, continuous sloping line of higher ground, normally jutting out from the
side of a ridge. The ground is sloped down in three directions and up in one direction.
Contour lines on a map depict a spur with the U- or V-shaped lines pointing away from
high ground.
,A spur is often formed by two rough parallel streams, which cut draws down the side of
a ridge.
8. CLIFF
A cliff is a vertical or near vertical feature; it is an abrupt change of the land.
When a slope is so steep that the contour lines converge into one "carrying" contour of
contours, this last contour line has tick marks pointing toward low ground.
Cliffs are also shown by contour lines close together and, in some instances, touching
each other.
✔✔Man-made Terrain Features (Elevation and Relief) - ✔✔9. CUT
A cut is a man-made feature resulting from cutting through raised ground, usually to
form a level bed for a road or railroad track.
Cuts are shown on a map when they are at least 10 feet high, and they are drawn with a
contour line along the cut line.
This contour line extends the length of the cut and has tick marks that extend from the
cut line to the roadbed, if the map scale permits this level of detail.
10. FILL
A fill is a man-made feature resulting from filling a low area, usually to form a level bed
for a road or railroad track.
Fills are shown on a map when they are at least 10 feet high, and they are drawn with a
contour line along the fill line.
This contour line extends the length of the filled area and has tick marks that point
toward lower ground.
✔✔Compasses are - ✔✔the primary navigation tools to use when moving in an outdoor
world where there is no other way to find directions.
The lensatic compass is the most common and simple instrument for measuring
direction.
A reliable tool that will never lose signal or run out of batteries.
✔✔Compass Nomenclature - ✔✔The lensatic compass consists of three major parts:
Cover
,Base
Lens
✔✔Nomenclature and Functions - ✔✔When the compass is opened, the left side is a
graduated coordinate scale.
In new compasses, this scale is 1:50,000 and in old compasses it is 1:25,000.
Be sure to check the scale before using it.
Compasses are delicate instruments and should be cared for accordingly. A detailed
inspection is required when first obtaining and using a compass.
✔✔Compass Dial - ✔✔The compass dial floats free when in use.
It is locked in place by closing the eyepiece.
It contains two complete circular scales, one in degrees (red scale) and one in mils
(black scale).
The magnetic arrow is found on the compass dial.
✔✔Bezel Ring - ✔✔The bezel ring holds the upper glass crystal in place.
It helps preset a direction for night compass navigation.
It contains 120 clicks when rotated fully. Each click equals 3 degrees.
✔✔Cover - ✔✔The cover contains a sighting wire.
When closed, it protects the face of the crystal.
When at a 90 degree angle to the other half of the compass, it can be used to sight on
objects.
The cover includes a graduated straightedge that is referenced when orienting the map.
✔✔Thumb Loop - ✔✔The thumb loop serves as a retaining device to secure the
compass in a closed position.
It is used when holding the compass in position for sighting on objects.
✔✔Black Index Line - ✔✔The black index line is a stationary line used as a reference
line for determining direction.
, It identifies the direction the compass is pointing when held properly.
✔✔Sighting Wire - ✔✔The sighting wire provides an exact azimuth for objects.
It can be used for compass calibration.
It is also used with steering marks.
✔✔Base - ✔✔The body of the compass contains the following movable parts:
The floating dial
The fixed black index line
The bezel ring
The thumb loop
✔✔Lens - ✔✔The lens is used to read the dial. It is housed in the rear-sight. The rear-
sight slot is used in conjunction with the sighting wire to sight objects.
The rear-sight serves as a lock. It clamps the dial when it is closed for its protection.
The rear-sight must be opened more than 45° to allow the dial to float freely.
✔✔Orienting the Map - ✔✔Before you can use a map, you must ensure that the map is
oriented. When you orient a map, you are adjusting it so that north on the map points to
north on the ground. When done correctly, the information on the map will match the
features on the ground. To ensure that your map and compass are oriented, perform
the following steps:
1. Determine the direction of the madnetic north and the G-M angle on the declination
diagram.
2. Align the straightedge on the compass with a north-south grid line.
3. rotate the map and compass together, aligning the magnetic arrow and the fixed
black index line.
4. rotate the map and compass together until the compass arrow is aligned with the
magnetic north.
5. check the compass reading.
✔✔The center-hold technique is effective because - ✔✔it is quick and adaptable.