दरवाजे या खिड़की के खुलने वाले हिस्से के ऊर्ध्वाधर हिस्से जो फ्रेम को सहारा देते हैं, कहलाते हैं:

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?