Question 12 {Mandator'yr} {1 point} MI: 12. 1Ii'll'hen the air temperature passes protection. EL it is time to prepare for hot weather Question 13 {Mandator'yr} {1 point} MI: 13. The recommended concrete temperature for a section size less than 12" and air temperature above EDIE is. Question 14 [Mandatory] {1 point} MI: 14. Concrete initially protected from freezing for two or three days and then exposed to below-freezing temperatures 0 a. Losses strength rapidly O b. Gains strength slowly O c. Gains strength rapidly Q d. Losses strength slowly Question 15 [Mandatory] {1 point} MI: 15. Cold weather concreting is a concern when day time temperatures do not rise ahoye 1