Q1: Which of the following Pairs regarding explanations and the terminologies pertaining to masonry are correctly matched ?
1. Reveal....projecting stone to serve as support for joist.
2. Throating....groove provided on the underside of projecting elements likes sills.
3. Gable....triangle shaped masonry works provided at the ends of sloped roof.
4. Freeze....vertical sides of finished opening for doors and windows.
Select the correct answer using the codes given below :