Worksheetswelding final
Total questions: 25
Worksheet time: 6hrs 15mins
The standard for safety in welding is ___________.
A. ASME Boiler and Pressure Vessel Code 24
B. AWS Welding Society
C. ANSI Z49.1 Safety in welding, cutting, and allied processes
D. API 1104 Standard for Welding Pipelines and Related facilities
The storage area for oxygen cylinders must be 20 feet away from gas cylinders or be _____.
A. Enclosed on three sides
B. Equipped with fire suppression system
C. An enclosed space with ventilation system
D. Separated by 5 feet wall with 30 minute burn rating
3. The risk of flash burn can be reduced by wearing _____________.
A. Natural materials like wool or cotton
B. Safety glasses with a properly tinted lens
C. A welding cap with the visor turned back
D. Long sleeves and buttoning the shirt all the way
4. Most welding environment fires occur during
A. GMAW
B. GTAW
C. Oxy-fuel gas cutting
D. SMAW
5. The first thing to be done at the job site before work begins is to ____________.
A. Conduct an evaluation of the hazards that exist
B. Organize the tools and equipment to be used
C. Request a confined space entry permit
D. Request a hot work permit
All of the fabrics can be worn around sources of sparks or high heat except ________.
A. Leather
B. Cotton
C. Polyester
D. Wool
The most common welding accident is ________________.
A. Burns to the hands and arms
B. Falls from heights
C. Electrocution
D. Arc burns to the eyes
8. A track burner is a device used to ___________________.
A. Weld pipe
B. cut holes in plate
C. Cut or bevel a straight line
D. cut railroad track material
9. The hose that carries oxygen from the cylinder to the torch are usually ____________.
A. Red
B. Blue
C. Orange
D. Green
10. Mapp gas is a combination of acetylene and _________________.
A. Propane
B. Natural Gas
C. Propylene
D. Oxygen
11. The first step in shutting down the oxyfuel cutting equipment is to ___________.
A. Back out the regulator adjusting screws
B. Close the fuel gas cylinder valve
C. Close the oxygen cylinder valve
D. Open the oxygen torch valve to relieve pressure
12. When an empty cylinder has been taken back to storage mark MT on ________.
A. bottom of the cylinder
B. middle of the side of the cylinder
C. lower third of cylinder
D. near the top
13. The threads of the acetylene cylinder valve are _____________ .
A. Right hand threads
B. Left hand threads
C. Corkscrew threads
D. Metric threads
14. The simplest plasma arc cutting units use filtered ________ for plasma and cooling gas.
A. Carbon Dioxide
B. helium
C. compressed air
D. nitrogen
15. Sputtering or hissing of the torch of PAC is often caused by ___________________.
A. air not being moist enough
B. not enough oil in air
C. too much moisture in the air
D. metal in air hose
16. The most common PAC torch uses ______________________.
A. non-transferred arc process
B. an air process
C. a pilot arc and non-transferred arc process
D. a pilot arc and transferred arc process
17. In PAC, plasma is created by _____________________.
A. lighting the torch
B. combining acetylene and acetone
C. combining gas to radioactive material
D. superheating gas in an electric arc
18. The CAC-A process uses jets of __________ to blow molten metal away.
A. Plasma
B. Nitrogen
C. Carbon Dioxide
D. Compressed air
19. The preferred power source for a CAC-A torch is
A. AC constant voltage machine
B. DC constant current machine
C. DC constant voltage machine
D. AC or DC constant voltage machine
20. A detailed listing of the rules and principles that apply to specific weld product is a ___.
A. Weld blueprint
B. Welding specification
C. Quality standard
D. Welding code
21. Always try to position the weldment so that welding is performed in the ____ position.
A. flat
B. 4G
C. vertical
D. overhead
22. The backing strip for welding mild steel up to 3/4 “ thick should be thick by wide.
A. 3/4”; 7”
B. 1”; 5”
C. 1/4”; 1/2”
D. 3/8”; 3”
23. The most common defect caused by surface contamination is _____________.
A. layering
B. porosity
C. brittleness
D. scale build up
24. The number/letter designator for fillet welding on plate in flat position is _________.
A. 1F
B. 2G
C. 3V
D. 4P
25. The number/letter designator for schedule 80 pipe weld on fixed 45 degree is ______.
A. 4V
B. 45G
C. 6G
D. 5G
