BC chapter 14

Question 1

inadequate structural design

Answer 1

• building code requirements
• engineering standards and practices
• local weather , seismic and flood data
• redundancies and safeguards as relevant
• ensure that proper materials and methods of construction are being used

Question 2

temporary loads

Answer 2

collapse can result when temporary loads on the structural members exceed final design loads due to careless stockpiling of heavy building materialson upper floors

Question 3

instability of building frame

Answer 3

during construction may cause failure until the final members of the structural frame are in place, the frame is vulnerable to vertical and horizontal loads

Question 4

piecemeal demolition

Answer 4

performed with hand tools or machines

Question 5

controlled collapse demolition

Answer 5

performed with large equipment that may include
* crane with demolition ball
* hydraulics pusher arms
* wire rope pulling
* explosives

Question 6

common sources of explosions in buildings include

Answer 6

• boiler furnaces
• flammable gas leaks
• gasoline vapors
• finely powdered dust
• storage of fireworks or blasting agents
• industrial processes ,with or without the proper safeguards in place
• illicit labs
• oil extraction using flammable liquids and gases

Question 7

hurricanes

Answer 7

expect wind-borne debris,such as coastal areas where the basic wind speed is 110 mph or greater, and structures may include special anchors such as a hurricane straps,clips or brackets to provide additional reinforcement

Question 8

FD must work closely with appropriate agencies when utilities are lost or damaged for reasons….

Answer 8

• damaged electric power systems may ignite combustible materials or energized conductive materials
• ruptured natural gas system may leak into an enclosed area and create an ignition hazard
• ruptured water systems may flood low grade spaces and /or deplete water supplies