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NG Army Exam practice questions

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Question 1Drill and Ceremonies

At the position of attention, where should the soldier's hands be placed?

  1. Clasped together in front of the belt buckle
  2. Behind the back with the right hand grasping the left wrist
  3. Cupped at the sides with thumbs along the seams of the trousers Correct answer.
  4. Flat against the front of the thighs with fingers spread

Explanation

At attention the hands hang naturally, with the backs of the fingers touching the trousers and the thumbs resting along the seams, fingers curled naturally. The body is erect with heels together and feet at a 45-degree angle. Any clasping or placing of hands behind the back belongs to a different position such as parade rest.

Question 2Drill and Ceremonies

When given the command "Parade Rest," what is the correct placement of the feet?

  1. The left foot moved smartly about 10 inches to the left of the right foot Correct answer.
  2. Feet shoulder-width apart with toes pointing forward
  3. The right foot moved 12 inches to the right of the left foot
  4. Heels together, feet at a 45-degree angle

Explanation

On Parade Rest the soldier keeps the right foot in place and moves the left foot smartly about 10 inches to the left, keeping the legs straight and the weight evenly distributed. The hands are placed behind the back with the right hand over the left. Heels-together spacing applies to attention, not parade rest.

Question 3Drill and Ceremonies

How many inches per step is the normal marching pace (quick time) in Army drill?

  1. 20 inches
  2. 24 inches
  3. 36 inches
  4. 30 inches Correct answer.

Explanation

Quick time is marched at 120 steps per minute with a 30-inch step measured from heel to heel. The 24-inch step is used for half step, and the 36-inch step applies to double time. Maintaining the correct step length keeps formations aligned and interval consistent.

Question 4Drill and Ceremonies

What is the prescribed cadence for double time marching?

  1. 90 steps per minute
  2. 150 steps per minute
  3. 180 steps per minute Correct answer.
  4. 120 steps per minute

Explanation

Double time is executed at 180 steps per minute with a 36-inch step, and soldiers run with elbows bent and fists loosely closed. Quick time is 120 steps per minute. The faster cadence distinguishes double time from all other marching movements.

Question 5Drill and Ceremonies

On the command "Present Arms" from the order arms position, where is the rifle held?

  1. At the side with the butt resting on the ground
  2. Diagonally across the body with the muzzle at the left shoulder
  3. Horizontally across the chest at shoulder height
  4. Vertically centered on the body with the magazine well facing the front Correct answer.

Explanation

Present Arms brings the rifle to a vertical position centered on the body, with the front sight post aligned with the nose and the magazine well facing forward. The left hand grips the handguard and the right hand holds the small of the stock. This rendering of honors is distinct from port arms and order arms.

Question 6Drill and Ceremonies

Which command is given to move a squad from a line formation into a column formation?

  1. Right, Face Correct answer.
  2. Left, Face
  3. Column Right, March
  4. Forward, March

Explanation

Right, Face is a facing movement that turns each soldier 90 degrees to the right, converting a line formation into a column without marching. Column Right, March is a marching movement that changes direction while in column. Facing movements are executed in place on the command of execution.

Question 7Drill and Ceremonies

A squad leader commands "Column of Twos, March" from a column of fours. What is the immediate result?

  1. The squad continues as a single file of four
  2. The squad forms a line formation
  3. The squad executes an about face
  4. The squad re-forms into two files of two Correct answer.

Explanation

Column of Twos converts a column of fours into two parallel files, with the even-numbered files following the file leader of the file to their front. The movement is a marching formation change, not a facing movement. The reverse movement, Column of Fours, restores the original formation.

Question 8Drill and Ceremonies

On the command "Left Flank, March" while marching, what does each soldier do at the command of execution?

  1. Executes a 45-degree turn to the left and continues marching
  2. Executes an about face and marches to the rear
  3. Executes a 90-degree turn to the left and continues marching in the new direction Correct answer.
  4. Halts and faces left before resuming the march

Explanation

A flanking movement turns the element 90 degrees to the named side on the command of execution, and marching continues in the new direction without a halt. The pivot is made on the ball of the foot toward the direction of the turn. Flanking movements are used to change the direction of a marching element.

Question 9Drill and Ceremonies

When a unit is at close interval, what is the distance between adjacent soldiers?

  1. 40 inches
  2. 26 inches
  3. 15 inches
  4. 4 inches Correct answer.

Explanation

Close interval places soldiers 4 inches apart, measured from shoulder to shoulder, with the left hand resting on the hip and the elbow bent. Normal interval is 30 inches, measured with the left arm extended. Close interval is used for ceremonies and narrow spaces.

Question 10Drill and Ceremonies

On the command "Dress Right, Dress," what does each soldier except the right flank soldier do?

  1. Turn the head and eyes to the right while extending the left arm to touch the shoulder of the soldier to the left Correct answer.
  2. Raise the right arm horizontally to establish the interval
  3. Turn the head 45 degrees to the right and raise the left arm
  4. Turn the head to the left and place the left hand on the hip

Explanation

Dress Right, Dress aligns the formation at normal interval: soldiers turn their heads to the right while extending the left arm so the fingertips touch the shoulder of the soldier to their left. The right flank soldier raises the right arm as the guide. The command Ready, Front returns the element to attention.

Question 11Drill and Ceremonies

What is the correct response when an individual soldier is given the command "About Face"?

  1. Pivot 180 degrees to the right on the ball of the right foot Correct answer.
  2. Pivot 180 degrees to the left on the ball of the left foot
  3. Turn 90 degrees to the right and bring the heels together
  4. Step backward with the right foot and then face left

Explanation

About Face is executed by pivoting 180 degrees to the right on the ball of the right foot and the heel of the left foot, then bringing the feet back to the attention position. The movement is performed in place and completes on a single count. It is used to reverse the direction a soldier is facing.

Question 12Drill and Ceremonies

How is the command "Mark Time, March" executed while marching?

  1. The soldier takes 30-inch steps in place without advancing
  2. The soldier halts and stands at attention
  3. The soldier continues forward at half the normal cadence
  4. The soldier marches in place with the thighs parallel to the ground Correct answer.

Explanation

Mark Time keeps the cadence and step rhythm but the soldier marches in place, lifting the feet so the thighs are parallel to the ground and the toes point downward. The command Forward, March resumes forward movement. Mark Time is used to maintain cadence while the element is halted in place.

Question 13Drill and Ceremonies

When executing "Right Step, March," which foot moves first and in which direction?

  1. The right foot moves to the right Correct answer.
  2. The right foot moves forward
  3. The left foot moves to the right
  4. The left foot moves to the left

Explanation

Right Step is a lateral movement in which the right foot steps to the right and the left foot is brought alongside to re-form the attention stance. The command is used to shift a unit sideways without changing facing. Left Step mirrors the movement to the left.

Question 14Drill and Ceremonies

What is the prescribed arm swing when marching at quick time?

  1. The arms swing freely with the hands reaching shoulder height
  2. The arms remain at the sides without swinging
  3. The arms swing 12 inches to the front and 12 inches to the rear
  4. The arms swing 9 inches to the front and 6 inches to the rear, measured from the waist Correct answer.

Explanation

At quick time the arms swing naturally, with the forward swing measured about 9 inches from the waist and the rearward swing about 6 inches, keeping the elbows straight. The hands are loosely closed and the shoulders remain square. Excessive or absent arm swing breaks uniformity in formation.

Question 15Drill and Ceremonies

In a platoon formation, who serves as the pivot element during a column movement?

  1. The guidon bearer
  2. The platoon sergeant
  3. The soldier on the outside of the turn
  4. The soldier on the inside of the turn Correct answer.

Explanation

During a column movement the soldier on the inside of the turn is the pivot and takes shorter steps, while the soldier on the outside takes longer steps to maintain alignment. The pivot is the point around which the formation swings. This preserves the integrity of the column through the change of direction.

Question 16Drill and Ceremonies

When a unit is formed in a line formation, how are the soldiers arranged relative to the leader?

  1. Side by side, with the leader on the right of the line Correct answer.
  2. One behind the other, with the leader at the front
  3. Side by side, with the leader centered in front
  4. One behind the other, with the leader at the rear

Explanation

A line formation arranges soldiers side by side on a common line, with the leader positioned on the right of the formation. A column formation arranges soldiers one behind the other. The distinction determines how commands for alignment and movement are given.

Question 17Drill and Ceremonies

What does the guidon bearer do on the command "Order Arms" while in a formation?

  1. Plants the guidon at a 45-degree angle
  2. Raises the guidon overhead
  3. Cradles the guidon horizontally across the body
  4. Lowers the guidon to a vertical position with the ferrule on the ground Correct answer.

Explanation

Order Arms brings the guidon to a vertical position with the ferrule resting on the ground beside the right foot. This mirrors the rifle order arms position and is the normal carry while halted. The guidon is returned to carry when the unit moves.

Question 18Drill and Ceremonies

On the command "Eyes Right," what does the element do while passing in review?

  1. Turns the head and eyes 45 degrees to the right while continuing to march Correct answer.
  2. Turns the head and eyes 90 degrees to the right and salutes
  3. Continues to look straight ahead
  4. Halts and faces the reviewing stand

Explanation

Eyes Right turns the head and eyes toward the reviewing party while the element continues marching in step. The command Ready, Front returns the head and eyes to the front. This rendering of honors is executed without breaking cadence or formation.

Question 19Drill and Ceremonies

What is the correct action on the preparatory command "To the Rear" before "March" is given?

  1. The soldier turns 90 degrees to the right
  2. The soldier halts in place
  3. The soldier continues marching and waits for the command of execution Correct answer.
  4. The soldier executes an about face immediately

Explanation

A preparatory command names the movement and orients the soldier, but no action is taken until the command of execution is given. On March, the soldier executes an about face and continues marching in the opposite direction. Reacting to the preparatory command alone would break the element's uniformity.

Question 20Drill and Ceremonies

How many counts are used to execute the rifle movement "Port Arms" from Order Arms?

  1. Four counts
  2. One count
  3. Three counts Correct answer.
  4. Two counts

Explanation

Port Arms from Order Arms is executed in three counts: raising the rifle diagonally across the body, grasping the small of the stock, and completing the position. The count structure keeps the movement uniform across the element. Movements vary in count, so soldiers must know each prescribed sequence.

Question 21Drill and Ceremonies

What is the purpose of the command "Cover" in a formation?

  1. To close the interval between files
  2. To align soldiers shoulder to shoulder
  3. To bring the element to attention
  4. To align soldiers directly behind the soldier to their front Correct answer.

Explanation

Cover aligns soldiers in a column so each soldier is directly behind the soldier to the front, establishing correct distance. Dress aligns soldiers side by side at the correct interval. Together, cover and dress produce a properly aligned formation.

Question 22Drill and Ceremonies

Which foot is used to execute the first step on the command "Forward, March" from attention?

  1. Either foot, at the soldier's discretion
  2. Both feet simultaneously
  3. The right foot
  4. The left foot Correct answer.

Explanation

On Forward, March the soldier steps off with the left foot, establishing the cadence for the element. Stepping off with the same foot keeps the formation in step. The left foot is also used to begin most marching movements.

Question 23Drill and Ceremonies

What is the correct procedure when a soldier in formation needs to leave the formation temporarily?

  1. Fall out at will without a command
  2. Stand at ease until the element halts
  3. Request permission, and on the command Fall Out, step out of the formation Correct answer.
  4. Execute an about face and march to the rear

Explanation

A soldier leaves formation only when authorized; on the command Fall Out the soldier steps out of the formation and may relax but remains in the vicinity. Leaving without a command disrupts the formation. The command Fall In returns the soldier to the formation.

Question 24Drill and Ceremonies

When executing "Change Step, March," what does the soldier do?

  1. Halts and restarts the march on the left foot
  2. Reverses direction and marches to the rear
  3. Executes a 90-degree turn and continues marching
  4. Takes a short extra step with the right foot to regain the correct cadence Correct answer.

Explanation

Change Step corrects a soldier who is out of step: on the command, the soldier takes a short extra step with the right foot and then continues with the left, restoring the cadence. It is executed while marching and does not change direction. The movement keeps the element in step without a halt.

Question 25Drill and Ceremonies

What is the correct position of the head and eyes at the position of attention?

  1. Head erect with eyes closed
  2. Head erect with eyes to the front, looking straight ahead Correct answer.
  3. Head turned 45 degrees toward the leader
  4. Head tilted slightly forward with eyes on the ground

Explanation

At attention the head is held erect and the eyes look straight to the front, with the chin slightly drawn in. This posture conveys discipline and keeps the element visually aligned. Looking down or turning the head breaks the uniformity of the formation.

Question 26Drill and Ceremonies

During a ceremonial review, a company commander directs the unit to execute "Present, Arms." What is the prescribed action for soldiers armed with the rifle?

  1. They raise the rifle vertically in front of the body and hold it steady.
  2. They render the hand salute while holding the rifle at Order Arms. Correct answer.
  3. They lower the rifle muzzle to the ground and incline the head.
  4. They bring the rifle to a horizontal position across the chest.

Explanation

At Present Arms, soldiers armed with the rifle render the prescribed salute while the rifle remains at Order Arms; the salute is executed with the right hand, not by moving the weapon. The weapon itself stays in its Order Arms position throughout the rendering of the salute.

Question 27Drill and Ceremonies

A squad is marching at quick time when the leader commands "Squad, Halt." On which foot is the command of execution given, and what is the resulting final position?

  1. On either foot, with soldiers stopping wherever the foot lands.
  2. On the right foot, with the left foot closing to the right foot.
  3. On the left foot, with both feet remaining apart at attention.
  4. On the left foot, with the right foot closing to the left foot. Correct answer.

Explanation

The command of execution for Halt is given as the left foot strikes the ground; the soldier then takes one more step with the right foot and closes the left foot to the right, ending at attention. This produces a uniform, together position rather than feet left apart.

Question 28Drill and Ceremonies

A platoon leader wants the unit to execute a movement to the flank while marching in formation. Which statement correctly describes a flank movement as executed on the march?

  1. The unit continues in the same direction but repositions individual soldiers.
  2. The unit halts, faces the flank at attention, then steps off.
  3. The unit reverses direction and marches back along its original path.
  4. The unit turns 90 degrees to the designated flank and continues marching. Correct answer.

Explanation

A flank movement changes the direction of march by 90 degrees to the named flank, and the unit continues marching in the new direction without halting. Reversing direction is a different movement, and flank movements are executed while marching rather than from a halt.

Question 29Drill and Ceremonies

A soldier is standing in a formation when the commander gives "Parade, Rest." Which description matches the prescribed position?

  1. The soldier remains at attention with arms locked at the sides.
  2. The soldier kneels on the right knee with hands on the thighs.
  3. The soldier moves the left foot and clasps hands behind the back. Correct answer.
  4. The soldier stands with feet apart and hands clasped in front.

Explanation

At Parade Rest, the soldier moves the left foot about ten inches to the left, keeps the legs straight, and clasps the hands behind the back with the right hand over the left. The head and eyes remain to the front and silence is maintained.

Question 30Drill and Ceremonies

A guidon bearer is marching in a column when the unit is given "Eyes Right" while passing in review. What is the correct action for the guidon bearer?

  1. The bearer halts and dips the guidon while the unit continues marching.
  2. The bearer keeps the guidon vertical and does not execute eyes right. Correct answer.
  3. The bearer executes eyes right and lowers the guidon toward the reviewing stand.
  4. The bearer executes eyes right and carries the guidon at a sling arms position.

Explanation

When the unit executes Eyes Right, the guidon bearer does not execute eyes right; instead the bearer keeps the guidon in its prescribed carry and looks straight ahead so the guidon remains steady. The guidon is not dipped or lowered during this movement, and the bearer does not halt.

Question 31Land Navigation and Map Reading

On a standard 1:50,000 military topographic map, what ground distance does one centimeter on the map represent?

  1. 50 meters
  2. 500 meters Correct answer.
  3. 5,000 meters
  4. 5 meters

Explanation

A representative fraction of 1:50,000 means one unit on the map equals 50,000 of the same units on the ground. One centimeter therefore equals 50,000 centimeters, which converts to 500 meters. This scale is the standard for tactical land navigation maps.

Question 32Land Navigation and Map Reading

A map distance of 7 centimeters is measured between two points on a 1:25,000 map. What is the corresponding ground distance?

  1. 7,000 meters
  2. 17,500 meters
  3. 175 meters
  4. 1,750 meters Correct answer.

Explanation

Multiply the map distance by the scale denominator: 7 cm times 25,000 equals 175,000 cm, which is 1,750 meters. Converting centimeters to meters requires dividing by 100. Always confirm the scale printed in the map margin before computing.

Question 33Land Navigation and Map Reading

Which statement correctly describes the difference between a large-scale and a small-scale map?

  1. A large-scale map shows a larger area with less detail than a small-scale map
  2. A large-scale map uses a smaller representative fraction than a small-scale map
  3. A large-scale map and a small-scale map always show the same level of detail
  4. A large-scale map shows a smaller area with more detail than a small-scale map Correct answer.

Explanation

Scale is described as large when the representative fraction is large, such as 1:25,000, meaning the map covers less ground but shows more detail. Small-scale maps such as 1:250,000 cover more ground with less detail. The terms refer to the fraction, not the physical sheet size.

Question 34Land Navigation and Map Reading

On a military map, what do the brown contour lines primarily represent?

  1. Vegetation and forest cover
  2. Man-made structures and roads
  3. Elevation and shape of the terrain Correct answer.
  4. Water features and drainage

Explanation

Brown is the standard color for contour lines, which depict elevation and the shape of the ground. Each contour connects points of equal elevation above a reference datum. Other colors are reserved for different feature classes.

Question 35Land Navigation and Map Reading

What is the contour interval of a map?

  1. The vertical distance between adjacent contour lines Correct answer.
  2. The number of contour lines crossing a grid square
  3. The difference between the highest and lowest points on the map
  4. The horizontal distance between adjacent contour lines

Explanation

The contour interval is the constant elevation difference between one contour line and the next, printed in the map margin. It allows the navigator to calculate elevation change by counting lines. Horizontal spacing between contours indicates slope steepness, not the interval.

Question 36Land Navigation and Map Reading

Contour lines that are closely spaced on a map indicate what about the terrain?

  1. Flat ground
  2. A gentle slope
  3. A steep slope Correct answer.
  4. A depression

Explanation

When contour lines are packed tightly together, a large elevation change occurs over a short horizontal distance, which defines a steep slope. Widely spaced contours indicate gentle slopes. The spacing, not the interval, communicates steepness.

Question 37Land Navigation and Map Reading

How is a depression shown on a military topographic map?

  1. With red contour lines
  2. With dashed contour lines throughout
  3. With hachure marks on the inside of the contour line Correct answer.
  4. With contour lines spaced evenly apart

Explanation

A depression, a low area surrounded by higher ground, is indicated by hachures, which are short tick marks pointing downslope on the inside of the closed contour. This distinguishes it from a hill, whose closed contours have no hachures. Reading the hachures prevents elevation errors.

Question 38Land Navigation and Map Reading

What is the purpose of the declination diagram printed in the margin of a military map?

  1. It shows the elevation profile along the map's center line
  2. It indicates the map's edition and printing date
  3. It lists the map's contour interval and datum
  4. It shows the angular relationships among true north, magnetic north, and grid north Correct answer.

Explanation

The declination diagram depicts true north, magnetic north, and grid north and gives the angular differences among them. Navigators use these values to convert a magnetic azimuth to a grid azimuth and vice versa. Ignoring declination produces systematic direction errors.

Question 39Land Navigation and Map Reading

A navigator measures a grid azimuth of 100 degrees and the map shows a grid-magnetic angle of 8 degrees east. What magnetic azimuth should be set on the compass?

  1. 92 degrees Correct answer.
  2. 108 degrees
  3. 100 degrees
  4. 84 degrees

Explanation

When the grid-magnetic angle is east, magnetic north lies east of grid north, so the magnetic azimuth is smaller than the grid azimuth. Subtract the 8-degree angle from 100 degrees to obtain 92 degrees. Applying the correction in the wrong direction doubles the error.

Question 40Land Navigation and Map Reading

What does the grid convergence, or grid declination, on a military map represent?

  1. The angle between grid north and true north Correct answer.
  2. The angular error introduced by the compass
  3. The difference between the map datum and the ellipsoid
  4. The angle between magnetic north and true north

Explanation

Grid convergence is the angle at a given point between grid north and true north, and it varies across the map sheet. It is shown in the declination diagram alongside magnetic declination. Confusing the two angles leads to incorrect azimuth conversions.

Question 41Land Navigation and Map Reading

On the Military Grid Reference System, how many digits are used to express a grid coordinate to the nearest ten meters?

  1. Ten digits
  2. Eight digits Correct answer.
  3. Six digits
  4. Four digits

Explanation

An eight-digit MGRS coordinate consists of four digits of easting and four digits of northing, giving ten-meter precision. Six digits give 100-meter precision and ten digits give one-meter precision. The number of digits directly determines the precision of the reported location.

Question 42Land Navigation and Map Reading

A map margin shows a scale of 1:50,000 and the navigator measures 4 centimeters between two grid intersections. What is the ground distance?

  1. 200 meters
  2. 20,000 meters
  3. 2,000 meters Correct answer.
  4. 800 meters

Explanation

Four centimeters multiplied by 50,000 equals 200,000 centimeters, or 2,000 meters. This equals two kilometers on the ground. Checking the result against the grid squares on the map provides a quick sanity check.

Question 43Land Navigation and Map Reading

What is a back azimuth of a given azimuth?

  1. The given azimuth reflected across the map's center
  2. The given azimuth plus or minus 180 degrees Correct answer.
  3. The given azimuth corrected for magnetic declination
  4. The given azimuth plus 90 degrees

Explanation

A back azimuth points in the opposite direction from the original azimuth. Add 180 degrees if the azimuth is 180 degrees or less, or subtract 180 degrees if it is greater than 180 degrees. This technique is used to reverse a direction of travel or to locate a distant object.

Question 44Land Navigation and Map Reading

A Soldier plots a point using an eight-digit MGRS coordinate. Which reading order is correct?

  1. Read right to the easting, then up to the northing Correct answer.
  2. Read the northing first, then the easting, then the zone
  3. Read the zone designator, then the northing, then the easting
  4. Read up to the northing, then right to the easting

Explanation

MGRS coordinates are always read right and then up, following the rule of reading easting before northing. The first half of the digits gives the easting and the second half the northing. Reversing the order places the point in the wrong grid square.

Question 45Land Navigation and Map Reading

What is the primary purpose of an orienting arrow and magnetic needle on a lensatic compass during land navigation?

  1. To identify the map's grid zone designator
  2. To determine the elevation of the observer's position
  3. To align the compass with magnetic north so a magnetic azimuth can be determined Correct answer.
  4. To measure the distance to a distant object

Explanation

The magnetic needle points to magnetic north, and aligning it with the orienting arrow establishes the reference direction from which azimuths are read. The compass bezel then allows the navigator to set or read an azimuth. A compass does not measure distance or elevation.

Question 46Land Navigation and Map Reading

When using a lensatic compass, what is the correct procedure for holding it to read an azimuth accurately?

  1. Hold the compass close to a metal object to steady the needle
  2. Hold the compass flat against the chest and read it from above
  3. Hold the compass tilted toward the sun for better needle visibility
  4. Hold the compass level with the thumb through the thumb loop and the lens at eye level Correct answer.

Explanation

The compass is held level so the needle floats freely, with the thumb through the loop and the rear sight and lens aligned at eye level. Tilting the compass causes the needle to drag and produces inaccurate readings. Metal objects and electrical equipment nearby can deflect the needle.

Question 47Land Navigation and Map Reading

Which technique is used to determine a location by measuring the magnetic azimuths to two known landmarks from an unknown position?

  1. Intersection
  2. Resection Correct answer.
  3. Pacing
  4. Dead reckoning

Explanation

Resection determines the observer's unknown position by sighting azimuths to two or more known points and plotting the back azimuths on the map. Intersection works in the opposite direction, locating an unknown object from known positions. Dead reckoning and pacing track movement rather than fixing a position from landmarks.

Question 48Land Navigation and Map Reading

A navigator measures a magnetic azimuth to a landmark as 250 degrees and the map shows a grid-magnetic angle of 6 degrees west. What grid azimuth should be plotted on the map?

  1. 262 degrees
  2. 250 degrees
  3. 244 degrees
  4. 256 degrees Correct answer.

Explanation

When the grid-magnetic angle is west, magnetic north lies west of grid north, so the grid azimuth is larger than the magnetic azimuth. Add the 6-degree angle to 250 degrees to get 256 degrees. Applying the correction in the wrong direction produces a 12-degree error.

Question 49Land Navigation and Map Reading

On a map, a slope is described as uniform and the contour interval is 20 meters. What does the term contour interval specifically refer to in this statement?

  1. The horizontal distance between successive contour lines
  2. The 20-meter elevation difference between successive contour lines Correct answer.
  3. The slope angle of the terrain between the lines
  4. The total elevation change across the entire map

Explanation

The contour interval is the vertical elevation difference between adjacent contour lines, here 20 meters. It is a fixed value for a given map and is printed in the margin. Slope angle and horizontal spacing are separate properties derived from the contours.

Question 50Land Navigation and Map Reading

A navigator must convert a distance of 3.5 kilometers to centimeters on a 1:50,000 map. What map distance results?

  1. 0.7 centimeters
  2. 3.5 centimeters
  3. 70 centimeters
  4. 7 centimeters Correct answer.

Explanation

Three and a half kilometers equals 350,000 centimeters on the ground, and dividing by 50,000 gives 7 centimeters on the map. Converting units before dividing avoids decimal errors. The result can be checked by recalling that one centimeter equals 500 meters at this scale.