Examination Practice Questions And

Illinois Structural Collapse Technician Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which type of collapse occurs when a building falls straight down due to

failure of support columns?

• Pancake collapse
• Domino collapse
• Lean-to collapse
• V-shape collapse

Answer: B

Rationale: Domino collapse occurs when vertical elements fail sequentially,

causing the structure to fall like dominoes.

• / 4

2. During a trench rescue, the primary hazard to rescuers is:

• Electrical shock
• Fire
• Secondary collapse or cave-in
• Flooding

Answer: C

Rationale: Trench collapses can occur suddenly, making secondary collapse

the main threat to rescuers.

• Which tool is most appropriate for breaching concrete in a collapse

situation?

• Halligan bar
• Axe
• Rotary concrete saw
• Crowbar

Answer: C

Rationale: Rotary concrete saws are designed to cut through reinforced

concrete quickly and safely.

4. Shoring in structural collapse refers to:

• Removing debris safely
• Supporting weakened structures to prevent further collapse 2 / 4

• Evacuating victims
• Cutting through metal beams

Answer: B

Rationale: Shoring stabilizes structures temporarily to allow safe access

and victim rescue.

5. The term “void” in structural collapse operations refers to:

• A storage area
• A collapsed beam
• Space created by structural failure where victims may be trapped
• A demolition zone

Answer: C

Rationale: Voids are pockets formed during collapse where victims may be

located.

• What is the minimum safe distance from an unstable wall during

collapse operations?

• 2 feet
• 5 feet
• 1.5 times the height of the wall
• No specific distance 3 / 4

Answer: C

Rationale: Safety guidelines recommend maintaining at least 1.5 times the

wall height to avoid injury from falling debris.

• Which structural collapse type is typically caused by overloading floors

or decks?

• Lean-to collapse
• V-shape collapse
• Pancake collapse
• Domino collapse

Answer: C

Rationale: Pancake collapse happens when floors fail and sequentially fall

onto one another, often due to overloading.

• A primary consideration when using search cameras in collapse

scenarios is:

• Battery life
• Victim location and structural integrity
• Color display
• Zoom level
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