DEMOLITIONS EXAM ACTUAL EXAM 70 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES|ALREADY GRADED A

DEMOLITIONS EXAM 2023-2024 ACTUAL EXAM 70

QUESTIONS AND CORRECT DETAILED ANSWERS WITH

RATIONALES|ALREADY GRADED A

Using a minimum amount of M112, how many packages are required to

cut an I-beam with the following dimensions: flange 8" X 1" thick and

web 14" X 1" thick? - ANSWER- not 3 or 4

How many total pounds of TNT are required to construct a relieved-face

road crater with a road width measuring 55 feet? - ANSWER- 740

How many Composition H6 cratering charges are needed to destroy an

abutment that is 5 feet thick, 15 feet high, and 42 feet wide? -

ANSWER- 8

Using the minimum amount of explosives, how many total packages of

M112 will be required to cut an alloy steel shaft 22" in circumference? -

ANSWER- not 5

How many packages of military dynamite (M1) are required to create a

relieved-face crater that is 120 feet long? - ANSWER- not 1160

Using the minimum amount of explosives, how many total packages of

C4 (M112) will be required to cut a mild steel bar that is 14 inches in

circumference? - ANSWER- 3

How many one-pound packages of TNT are required to cut 90 trees 35

inches in diameter using an external charge? - ANSWER- 2790

Using the Hasty Method, what is the amount of M112 needed for an

internal charge at the center of a 5-foot thick dense concrete wall? -

ANSWER- not 9

Using a block charge, how many one-pound packages of TNT are

required when your squad has been given the mission to cut eight steel Ibeams with the dimensions of: flanges 15" x 1" thick and web 32" x 1"?

- ANSWER- 192

How many packages of TNT are required to create a relieved-face crater

that is 125 feet long? - ANSWER- 1230

Using the minimum amount of explosives, how many total packages of

M112 are required to cut 17 trees, 24 inches in diameter? - ANSWER34

What is the correct DD form for preparing a breaching reconnaissance

record? - ANSWER- DD 3020

Using the Hasty method, what is the total amount of M112 (in 1.25 lb.

packages) needed for a ground placed untamped charge on a 6-foot thick

first class masonry wall? - ANSWER- 206