Cutting/Welding & Anccillary Equip

Question 1

Sparkless tools are made out of what alloy that is extremely poisonous? Do not grind, buff, or brush this material.

Answer 1

Beryllium

Question 2

What is the risk when performing cutting or welding operations while only partially submerged in water?

Answer 2

severe electrical shock

Question 3

what cannot be used as a substitute for oxygen in underwater cutting operations?

Answer 3

Compressed air

Question 4

what is the cutting amperage for Sea-Cut?

Answer 4

300-400 Amps

Question 5

what is the cutting amperage for Tuff-Cote/

Answer 5

300-350

Question 6

what is the cutting oxygen pressure for oxy-arc cutting?

Answer 6

90 Psi over bottom pressure

Question 7

what is the burning time on exothermic electrodes

Answer 7

45-55 seconds

Question 8

at what length on the electrode should you call for “Switch off”

Answer 8

around 3 inches

Question 9

for metals thicker than 3 inches what should you increase the oxygen pressure to?

Answer 9

110 psi

Question 10

For electrodes 5/16 inches and smaller what should be removed to retain proper flow?

Answer 10

the washer

Question 11

what is the self consuming cutting tool?

Answer 11

Kerie Cable

Question 12

What is the depth Limitation for Kerie Cable

Answer 12

300 FSW

Question 13

what is the advantage of Shielded metal arc cutting?

Answer 13

Can be used when no oxygen is available

Question 14

What polarity is used in Underwater welding?

Answer 14

DC electrode negative/straight polarity

Question 15

what is the scale for Fillet weld Strength?

Answer 15

1000 lbs per linear inch