单选题How are riveted lap joints made watertight（）.AThe faying surfaces are coated with white lead（or similar product）before the rivets are setBA sealing weld bead of 1/8 or less pitch is run along the plate edgeCThe plate edge is split close to an adjacent plate and mechanically forced into contact with the adjacent plateDA properly riveted joint will be watertight; any leakage is stopped by setting up on the rivets
单选题
How are riveted lap joints made watertight（）.
A
The faying surfaces are coated with white lead（or similar product）before the rivets are set
B
A sealing weld bead of 1/8 or less pitch is run along the plate edge
C
The plate edge is split close to an adjacent plate and mechanically forced into contact with the adjacent plate
D
A properly riveted joint will be watertight; any leakage is stopped by setting up on the rivets
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