IS 1904 के अनुसार, भवनों की नींव से तेजी से बढ़ने वाले पेड़ों को लगाने के लिए न्यूनतम अनुशंसित दूरी कितनी 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?