निम्नलिखित में से कौन सा कारक किसी सतह पर पेंट के कवरेज क्षेत्र (एरिया कवरेज) को सबसे सीधे प्रभावित करता 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?