Chapter 8

Question 1

Protective wire entanglements are normally placed how many feet away to prevent the enemy from effectively using hand grenades? (Page 8-3)

Answer 1

131 to 328 feet

Question 2

What is an entanglement “one fence” in depth? (Page 8-4)

Answer 2

Belt

Question 3

What consists of two or more belts in depth, with no interval between them? (Page 8-4)

Answer 3

Band

Question 4

What consists of two or more bands or belts in depth with intervals between them? (Page 8-4)

Answer 4

Zone

Question 5

Barbed wire Concertina roadblocks should be placed about how many feet apart? (Page 8-6)

Answer 5

33

Question 6

Standard barbed wire is a two-strand twisted No. 12 steel wire with four-point barbs at how many inch intervals? (Page 8-6)

Answer 6

4

Question 7

Barbed wire is issued in reels containing about how many feet of wire? (Page 8-6)

Answer 7

1,312

Question 8

Bobbins holding about how many feet of wire are prepared, normally in rear areas, for use in building short lengths of fence and in repairing entanglements? (Page 8-6)

Answer 8

98

Question 9

What is the breaking load of barbed steel tape? (Page 8-7)

Answer 9

500 pounds

Question 10

Barbed tape is issued in how many foot reels? (Page 8-7)

Answer 10

164

Question 11

What is the most effective fence that can be constructed using barbed tape? (Page 8-8)

Answer 11

Double apron fence

Question 12

How many pounds does the U-shaped picket weigh? (Page 8-11)

Answer 12

5.5

Question 13

How much does the barbed wire concertina weigh? (Page 8-14)

Answer 13

55.8 lbs

Question 14

Barbed tape concertina comes in a diameter of 33 inches and an expanded length of how many feet? (Page 8-14)

Answer 14

50

Question 15

Every concertina fence is secured firmly to the ground by driving staples at intervals of not more than how many feet? (Page 8-25)

Answer 15

6.6

Question 16

The trestle apron fence has inclined crosspieces spaced at 15.7 to how many foot intervals to carry longitudinal wires on the enemy side? (Page 8-30)

Answer 16

19.7

Question 17

Approximately how high should knife rests be? (Page 8-31)

Answer 17

3.3 feet

Question 18

Immediately after a defensive position is occupied and before an attempt is made to erect protective wire, trip wires should be placed just outside grenade range, usually how many feet? (Page 8-31)

Answer 18

98-131

Question 19

What should be used where concealment is essential and to prevent the enemy from crawling between fences and in front of emplacements? (Page 8-32)

Answer 19

Tanglefoot

Question 20

Tanglefoot obstacles should be used in a minimum depth of how many feet? (Page 8-32)

Answer 20

32.8

Question 21

The length of tactical wire entanglement is how many times the length of the front, times the number of belts, regardless of the size of the unit involved? (Page 8-34)

Answer 21

1.25

Question 22

Since protective wire encircles each platoon area of a command, the protective-wire entanglement for units is how many times the average platoon frontage, times the number of platoons involved? (Page 8-34)

Answer 22

2.5