Test no 6

1. Rubber can be stretched and will then return to its original shape because it is… a. plastic b. elastic c. flexible d. light 2. Spaces… in the building include a lecture room, laborataries and a library. a. provide b. provided c. providing d. to provide 3. The… in the concrete block is 20N/ m2. a. illumination b. density c. stress d. mass 4. The … of a surface in the room is measured in square metres. a. area b. volume c. width d. length 5. The longitudinal section of a cone is … a. square b. rectangular c. cirular d. triangular...