किस प्रकार की खिड़की किसी इमारत की मुख्य दीवार से बाहर की ओर निकली होती है, जो अंदर एक आरामदायक कोना प्रदान करती 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?