Underwater welding and cutting Exam
Questions and Answers 100% Pass
What are the two techniques of welding? - ✔✔Self consuming snd manipulative
What are some hazards to welding? - ✔✔Electrical shock, falling metal, and explosive
gases
UW applications for welding include? - ✔✔Battle damage repair, rope guard
replacement, rudder repair, zinc installation, and construction.
What are some surface applications? - ✔✔Surface battle repair, patch construction
What are some different equipment in welding and what is the minimum you can go? -
✔✔DC Welding generator and you have a 400, 300, and a 200, 200 is must only be used
in and emergency
What are the U/W polarity settings? - ✔✔(DC straight)Electro negative- this is the usual
method for U/W welding and results in a longer life for the electrode holder.
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 1
, What must be done prior to a weld and how is it done? - ✔✔Polarity test and done
when power source is dead connect welding leads to terminal electrode holder to
negative and grounding plate to positive. Break off wax tip
What are the cable lengths and what is the footage of each? - ✔✔2/0 cable is used when
power source is less than 400 feet away and a 3/0 cable when power source is further
than 400 feet away. Then there is a 1/0 cable.
What cable is 10 feet from electrode holder and why? - ✔✔It is cable 1/0 and it enables
the diver to maneuver better
What needs to be done with the leads? - ✔✔Connections need to be made water right
by wrapping in rubber tape then electrical tape, pre and post inspections shall be made,
rinse with fresh water, ground must be connected by a c-clamp, and ground will be
attached as close to job as practical.
Where should the diver not be while welding? - ✔✔In between ground and the job
because they could become part of the circuit
Characteristics of safety switches? Or knife switch - ✔✔It is positive acting, rated for 400
amps, have double pole single throw and single pole. Double pole single throw is
highly recommended.
What is some PPE for operator of safety switch? - ✔✔Rubber gloves, face shield, and
stands in rubber mat.
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 2
Questions and Answers 100% Pass
What are the two techniques of welding? - ✔✔Self consuming snd manipulative
What are some hazards to welding? - ✔✔Electrical shock, falling metal, and explosive
gases
UW applications for welding include? - ✔✔Battle damage repair, rope guard
replacement, rudder repair, zinc installation, and construction.
What are some surface applications? - ✔✔Surface battle repair, patch construction
What are some different equipment in welding and what is the minimum you can go? -
✔✔DC Welding generator and you have a 400, 300, and a 200, 200 is must only be used
in and emergency
What are the U/W polarity settings? - ✔✔(DC straight)Electro negative- this is the usual
method for U/W welding and results in a longer life for the electrode holder.
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 1
, What must be done prior to a weld and how is it done? - ✔✔Polarity test and done
when power source is dead connect welding leads to terminal electrode holder to
negative and grounding plate to positive. Break off wax tip
What are the cable lengths and what is the footage of each? - ✔✔2/0 cable is used when
power source is less than 400 feet away and a 3/0 cable when power source is further
than 400 feet away. Then there is a 1/0 cable.
What cable is 10 feet from electrode holder and why? - ✔✔It is cable 1/0 and it enables
the diver to maneuver better
What needs to be done with the leads? - ✔✔Connections need to be made water right
by wrapping in rubber tape then electrical tape, pre and post inspections shall be made,
rinse with fresh water, ground must be connected by a c-clamp, and ground will be
attached as close to job as practical.
Where should the diver not be while welding? - ✔✔In between ground and the job
because they could become part of the circuit
Characteristics of safety switches? Or knife switch - ✔✔It is positive acting, rated for 400
amps, have double pole single throw and single pole. Double pole single throw is
highly recommended.
What is some PPE for operator of safety switch? - ✔✔Rubber gloves, face shield, and
stands in rubber mat.
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 2
