सीढ़ी में राइज़र (riser) से आगे निकले हुए ट्रेड (tread) के हिस्से को ______ कहा जाता है।

Which of the following statements conform(s) to panel walls in building construction? 1. Panel walls are external load bearing walls. 2. They are self supporting walls subjected to lateral loads. 3. They are primarily used in framed structures.

Which of the following statements conforms to 'corbels' in masonry?