भारी वर्षा वाले क्षेत्रों में दीवार से दूर बारिश के पानी को बहाने के लिए किस प्रकार की खिड़की की दहलीज (window sill) सबसे उपयुक्त होती 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?