AR SHB Shoring & Bracing Contractor
Exam Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. What is the primary purpose of shoring in construction?
A. To decorate a structure
B. To support a structure temporarily during construction or repair
C. To permanently strengthen a foundation
D. To prevent soil erosion
B. To support a structure temporarily during construction or
repair
Rationale: Shoring is used to temporarily support structures or
trenches to prevent collapse during construction or repair.
2. Which type of shoring is most suitable for supporting deep trenches?
A. Dead shoring
B. Raking shoring
C. Soldier pile and lagging
D. Flying shoring
C. Soldier pile and lagging
Rationale: Soldier piles with lagging provide strong lateral support
for deep excavations.
3. What is the main difference between raking shores and dead shores?
A. Raking shores are diagonal; dead shores are vertical
B. Dead shores are temporary; raking shores are permanent
C. Raking shores are for trenches; dead shores are for bridges
D. Dead shores are made of steel; raking shores are wood
A. Raking shores are diagonal; dead shores are vertical
, Rationale: Raking shores provide diagonal support, whereas dead
shores support vertically.
4. Which of the following is considered a load-bearing shoring system?
A. Flying shore
B. Dead shore
C. Formwork
D. Cantilever shore
B. Dead shore
Rationale: Dead shores carry the vertical load of the structure
directly down to the foundation.
5. What is the primary hazard of improper shoring in trenches?
A. Noise pollution
B. Collapse and entrapment of workers
C. Material theft
D. Electrical hazards
B. Collapse and entrapment of workers
Rationale: Inadequate shoring can lead to trench collapses, posing
severe risks to workers.
6. What material is commonly used for shoring in residential
construction?
A. Reinforced concrete
B. Wood
C. Aluminum
D. Plastic
B. Wood
Rationale: Wood is easily available, economical, and adaptable for
temporary shoring in residential projects.
7. What is the main purpose of a flying shore?
A. To support walls on opposite sides of a narrow street or passage
B. To permanently reinforce a wall
C. To support vertical beams in bridges
D. To prevent soil erosion
A. To support walls on opposite sides of a narrow street or passage
Rationale: Flying shores are used to tie walls on opposite sides and
prevent collapse during construction.
8. How is the height of a dead shore determined?
A. By the weight of the material
, B. By the vertical distance it needs to support
C. By the thickness of the wall
D. By the width of the trench
B. By the vertical distance it needs to support
Rationale: Dead shores must reach from the load-bearing point to the
ground to transfer the vertical load.
9. Which factor is critical when selecting shoring material?
A. Color
B. Strength and load capacity
C. Brand
D. Texture
B. Strength and load capacity
Rationale: Shoring materials must have sufficient strength to safely
carry expected loads.
10. What is the recommended angle for raking shores relative to the
wall they support?
A. 30–45 degrees
B. 0–15 degrees
C. 60–75 degrees
D. 90 degrees
A. 30–45 degrees
Rationale: Raking shores are typically installed at 30–45° to provide
optimal support and stability.
11. When is internal shoring preferred over external shoring?
A. When supporting exterior walls
B. When temporary support inside a building is needed
C. When shoring long-span bridges
D. When trench depth exceeds 5 meters
B. When temporary support inside a building is needed
Rationale: Internal shoring is used to support floors, ceilings, or
other internal elements during construction.
12. What is the main structural component of a soldier pile system?
A. Vertical steel piles
B. Horizontal timber lagging
C. Diagonal braces
D. Concrete footings
A. Vertical steel piles
Exam Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. What is the primary purpose of shoring in construction?
A. To decorate a structure
B. To support a structure temporarily during construction or repair
C. To permanently strengthen a foundation
D. To prevent soil erosion
B. To support a structure temporarily during construction or
repair
Rationale: Shoring is used to temporarily support structures or
trenches to prevent collapse during construction or repair.
2. Which type of shoring is most suitable for supporting deep trenches?
A. Dead shoring
B. Raking shoring
C. Soldier pile and lagging
D. Flying shoring
C. Soldier pile and lagging
Rationale: Soldier piles with lagging provide strong lateral support
for deep excavations.
3. What is the main difference between raking shores and dead shores?
A. Raking shores are diagonal; dead shores are vertical
B. Dead shores are temporary; raking shores are permanent
C. Raking shores are for trenches; dead shores are for bridges
D. Dead shores are made of steel; raking shores are wood
A. Raking shores are diagonal; dead shores are vertical
, Rationale: Raking shores provide diagonal support, whereas dead
shores support vertically.
4. Which of the following is considered a load-bearing shoring system?
A. Flying shore
B. Dead shore
C. Formwork
D. Cantilever shore
B. Dead shore
Rationale: Dead shores carry the vertical load of the structure
directly down to the foundation.
5. What is the primary hazard of improper shoring in trenches?
A. Noise pollution
B. Collapse and entrapment of workers
C. Material theft
D. Electrical hazards
B. Collapse and entrapment of workers
Rationale: Inadequate shoring can lead to trench collapses, posing
severe risks to workers.
6. What material is commonly used for shoring in residential
construction?
A. Reinforced concrete
B. Wood
C. Aluminum
D. Plastic
B. Wood
Rationale: Wood is easily available, economical, and adaptable for
temporary shoring in residential projects.
7. What is the main purpose of a flying shore?
A. To support walls on opposite sides of a narrow street or passage
B. To permanently reinforce a wall
C. To support vertical beams in bridges
D. To prevent soil erosion
A. To support walls on opposite sides of a narrow street or passage
Rationale: Flying shores are used to tie walls on opposite sides and
prevent collapse during construction.
8. How is the height of a dead shore determined?
A. By the weight of the material
, B. By the vertical distance it needs to support
C. By the thickness of the wall
D. By the width of the trench
B. By the vertical distance it needs to support
Rationale: Dead shores must reach from the load-bearing point to the
ground to transfer the vertical load.
9. Which factor is critical when selecting shoring material?
A. Color
B. Strength and load capacity
C. Brand
D. Texture
B. Strength and load capacity
Rationale: Shoring materials must have sufficient strength to safely
carry expected loads.
10. What is the recommended angle for raking shores relative to the
wall they support?
A. 30–45 degrees
B. 0–15 degrees
C. 60–75 degrees
D. 90 degrees
A. 30–45 degrees
Rationale: Raking shores are typically installed at 30–45° to provide
optimal support and stability.
11. When is internal shoring preferred over external shoring?
A. When supporting exterior walls
B. When temporary support inside a building is needed
C. When shoring long-span bridges
D. When trench depth exceeds 5 meters
B. When temporary support inside a building is needed
Rationale: Internal shoring is used to support floors, ceilings, or
other internal elements during construction.
12. What is the main structural component of a soldier pile system?
A. Vertical steel piles
B. Horizontal timber lagging
C. Diagonal braces
D. Concrete footings
A. Vertical steel piles
