Which of the following are the advantages of reinforced earth structures? 1. These are quite flexible 2. The elements can be transported easily 3. These can be constructed in stages 4. The elements used are not easily available Select the correct answer.
- A1 and 2 only
- B2 and 4 only
- C1, 2 and 3Correct
- D2, 3 and 4
Solution
Concept
Advantages of reinforced earth
Step-by-step solution
1. Reinforced earth is flexible and tolerates settlement (1). 2. Its prefabricated elements are light and easy to transport (2). 3. It can be built in stages and quickly (3). 4. The elements are readily available, so statement 4 is not an advantage.
Explanation
Reinforced earth structures are flexible, economical and fast to build because the facing and reinforcing elements are prefabricated and easy to handle.
Why the other options are wrong
Statement 4 is a disadvantage, not an advantage.
Shortcut
Reinforced earth: flexible, easy to build, available materials.
Common mistake
Including statement 4.
Correct answer: C) 1, 2 and 3