DEMOLITIONS EXAM 2023-2024 ACTUAL EXAM 70 QUESTIONS AND CORRECT DETAILED ANSWERS
Which method of attack is preferred on a steel truss deck bridge with top supports? - (answer) bottom
attack
Using the Hasty method, how many total packages of C4 (M112) would be required to breach a
reinforced concrete wall, which is 7 feet thick, and 16 feet wide, using elevated untamped charges? -
(answer) 200
What is the value of "k" when you are destroying a 5-foot thick dense concrete wall using external
charge? - (answer) 0.41
Using a minimum amount of explosives, how many packages of M112 are required to cut 11 trees with
an average diameter of 34 inches? - (answer) 33 trees
Using the Hasty method, how many total packages of M112 are needed for a shallow water placed
charge on a 3-foot thick Dense concrete first class masonry wall? - (answer) 19
How many packages of M112 are required to cut 11 trees, 34 inches in diameter using a timber cutting
charge? Calculate for minimum charge size. - (answer) 33 pkgs
Which road crater produces the least effective barrier? - (answer) Hasty
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
Which method of attack is preferred on a steel truss deck bridge with top supports? - (answer) bottom
attack
Using the Hasty method, how many total packages of C4 (M112) would be required to breach a
reinforced concrete wall, which is 7 feet thick, and 16 feet wide, using elevated untamped charges? -
(answer) 200
What is the value of "k" when you are destroying a 5-foot thick dense concrete wall using external
charge? - (answer) 0.41
Using a minimum amount of explosives, how many packages of M112 are required to cut 11 trees with
an average diameter of 34 inches? - (answer) 33 trees
Using the Hasty method, how many total packages of M112 are needed for a shallow water placed
charge on a 3-foot thick Dense concrete first class masonry wall? - (answer) 19
How many packages of M112 are required to cut 11 trees, 34 inches in diameter using a timber cutting
charge? Calculate for minimum charge size. - (answer) 33 pkgs
Which road crater produces the least effective barrier? - (answer) Hasty
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
