What is the primary function of a deep foundation?

• To distribute loads over a wide area at shallow depth

• 
• 
• To improve the architectural appearance of the building

Which type of deep foundation is prefabricated and driven into the ground using a hammer?

• Bored Piles

• Diaphragm Walls

• Driven Piles

• Pier Foundations

A foundation that transfers loads primarily through the friction between its surface and the surrounding soil is called a/an:

• End-Bearing Pile

• Combined Pile

• Friction Pile

• Shallow Foundation

Which deep foundation type is constructed by drilling a hole, placing reinforcement, and filling it with concrete?

• Driven Piles

• Basement Foundations

• Bored Piles

• Raft Foundations

What is a common advantage of bored piles over driven piles?

• Higher installation noise and vibration

• Suitability for sites with low headroom or vibration restrictions

• Faster installation in all soil conditions

• Lower quality control requirements

Which foundation type is typically used for heavy bridge piers and tall structures where large diameters are needed?

• Pad Footings

• Pier Foundations (Caissons)

• Strip Foundations

• Raft Foundations

What is used to prevent a bored pile hole from collapsing during excavation?

• Quick-setting concrete

• Temporary casing or bentonite slurry

• Wooden planks

• Reinforcement cages

Deep foundations are generally required when:

• The surface soil is strong and stable

• The water table is very low

• The surface soil is weak or compressible

• The building has only one story