Section 10 - Repairs & Alterations

Question 1

The seam on a riveted tank has started to leak. Which of the following is not an acceptable repair method

Answer 1

Caulking
Epoxy coating after an abrasive blast
re-riveted
Welding
Soldered--

Question 2

On a riveted tank, some leaks have developed around a few rivet heads. Which of the following is a common problem when performing weld repairs?

Answer 2

Heat from welding can cause additional leaks in adjacent rivets

Question 3

A tank floor is being replaced due to product side corrosion. Currently the bottom-side of the tank is protected by CP. During this repair the:

Answer 3

Old floor should be removed

Question 4

When locating a door sheet, which of the following is true?

Answer 4

Locate the door sheet in an area where the bottom is relatively level for a distance of 5’ on either side of the door sheet.

Question 5

Cutting a door sheet all the way down to the bottom-to-shell weld:

Answer 5

may end up requiring a hydrotest to be performed.

Question 6

Tank records should:

Answer 6

maintained throughout the service life of the tank.