Dooshdonkey
New Member
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Can anyone please help with these questions. They are all multiple choice.
1.What is the maximum depth of undercut for a first class weld.
A. 1/8'' (3.18)
B. 1/64'' (0.40.)
C.20 percent
D. 50 Percent
2. Porosity: What is the great est size ofpore aallowable
A. 3/32'' (2.38)
B.1/16'' (1.59)
C.1/8'' (3.18)
D.1 1/2'' (38.10)
3. MIL-STD 1689 Within what period of time should welding take place before the joint requires re cleaning.
A. 10 min
B. 1 hr
C. 16 hrs
D. 3 weeks
4. How should oxide film be removed from aliminium weld area ( tick all applicable)
A. Stainless steel wire brush
B. Mild steel grinding disc
C. Approved chemical means
D. Mild steel wire brush
5. Attachments or modifications in Hull structure for welds in materials other than HY-80/1100 or high-hardenable material may be removed by?
A. Chipping
B. Oxy-fuel gas cutting
C. Gouging
D. Grinding
E. All of the above.
6.With a base material of less than 1/2'', up to what depth is acceptable without the requirement for repair?
A. Up to 1/16'' (1.59mm)
B. Up to 1/8'' (3.18mm)
C. Up to 1/4'' (6.35mm)
D. Up to 1/32'' (0.79mm)
7. The bottom radius for background roots and weld repair areas should be a minimum of?
A. 1/8'' (3.18mm)
B. 1/16'' (1.59mm)
C. 1/4'' (6.35mm)
D. 5/32'' (3.97mm)
8. It is acceptable to take off an alignment dog from HY80 plates by?
A. Hammer
B. Using sulfuric acid or other NAVSEA approved aids
C. Oxy-cutting to no less than 1/16'' (1.59mm) then grinding and chipping
D. Machining
9. Electrodes shall be conditioned by baking at + or - 24°F for a total time of?
A. 30 mins to 1 hr
B. More than 1 hr
C. Up to 30 mins
D. 1 to 2 hrs
1.What is the maximum depth of undercut for a first class weld.
A. 1/8'' (3.18)
B. 1/64'' (0.40.)
C.20 percent
D. 50 Percent
2. Porosity: What is the great est size ofpore aallowable
A. 3/32'' (2.38)
B.1/16'' (1.59)
C.1/8'' (3.18)
D.1 1/2'' (38.10)
3. MIL-STD 1689 Within what period of time should welding take place before the joint requires re cleaning.
A. 10 min
B. 1 hr
C. 16 hrs
D. 3 weeks
4. How should oxide film be removed from aliminium weld area ( tick all applicable)
A. Stainless steel wire brush
B. Mild steel grinding disc
C. Approved chemical means
D. Mild steel wire brush
5. Attachments or modifications in Hull structure for welds in materials other than HY-80/1100 or high-hardenable material may be removed by?
A. Chipping
B. Oxy-fuel gas cutting
C. Gouging
D. Grinding
E. All of the above.
6.With a base material of less than 1/2'', up to what depth is acceptable without the requirement for repair?
A. Up to 1/16'' (1.59mm)
B. Up to 1/8'' (3.18mm)
C. Up to 1/4'' (6.35mm)
D. Up to 1/32'' (0.79mm)
7. The bottom radius for background roots and weld repair areas should be a minimum of?
A. 1/8'' (3.18mm)
B. 1/16'' (1.59mm)
C. 1/4'' (6.35mm)
D. 5/32'' (3.97mm)
8. It is acceptable to take off an alignment dog from HY80 plates by?
A. Hammer
B. Using sulfuric acid or other NAVSEA approved aids
C. Oxy-cutting to no less than 1/16'' (1.59mm) then grinding and chipping
D. Machining
9. Electrodes shall be conditioned by baking at + or - 24°F for a total time of?
A. 30 mins to 1 hr
B. More than 1 hr
C. Up to 30 mins
D. 1 to 2 hrs
to the forum.
