Which of the following statements is incorrect for stone lintels in reference to support bearing?
1
The stone lintels shall be well bonded into masonry on either side
2
The bearing length can be reduced by increasing the thickness of the stone lintels
3
The bearing length on either side shall not be less than depth of the lintel
4
The bearing length on either side shall not be less than half the width of supporting masonry
5
Question Not Attempted