Comprehension check

I. Decide whether the following statements are true or false according to the text:

1. Bridgeis a structure used by people and vehicles to facilitate traveling.

2. To build a long bridge is very difficult and expensive, so a majority of bridges nowadays don’t range in length more than some hundred meters.

3. Single-span bridges are supported only by two abutments.

4. The main span in the multi-span bridge is the shortest one carrying the main load.

5. Aqueducts were used to provide people with drinking water.

6. Efficiency of a bridge is a scientific principle that takes into account the quantity of people and vehicles passing along the bridge.

7. The definition of elegance is not disputable.

II. Answer the questions:

1. What is a purpose of a bridge?

2. What is the difference between abutments and piers?

3. Why are spans made as short as possible?

4. What types of bridges according to their function can you name?

5. What do you know about a threefold goal of bridge design?

6. Describe three positions in bridge building taken by professionals.