What is the primary function of a retaining wall?

• To withstand lateral pressure of soil

• To support vertical loads

• To enhance aesthetic appeal

• To provide insulation

What is the purpose of considering sliding, overturning, and bearing forces in retaining wall design?

• To ensure structural stability

• To enhance visual appeal

• To reduce material costs

• To increase construction speed

Which of the following is a hybrid system in retaining walls?

• Combination of different retaining wall types

• Use of only one material

• Exclusive use of gravity walls

• Use of only cantilever walls

What is a common feature of crib retaining walls?

• They are a type of gravity retaining wall

• They require external support

• They are made of metal

• They are used for temporary structures

Which retaining wall type is specifically mentioned as using masonry units?

• Gravity Retaining Wall

• Cantilever Retaining Wall

• Anchored Retaining Wall

• Counter-fort Retaining Wall

Which material is typically used for the construction of gravity retaining walls?

• Wood

• Masonry Unit

• Plastic

• Aluminum

What is the primary purpose of a gravity retaining wall?

• To support a roof

• To retain soil

• To provide insulation

• To enhance aesthetics

What is the effect of the bearing force on the gravity retaining wall?

• It increases active thrust

• It supports the wall's weight

• It reduces sliding resistance

• It enhances passive resistance

What is the role of the toe in a gravity retaining wall?

• To provide additional height

• To resist active thrust

• To support the heel

• To increase sliding resistance

What is the primary construction method for crib retaining walls?

• Welding

• Interlocking

• Casting

• Bolting