OSHA general industry welding, cutting and brazing practice questions

1. Appreciable combustibles are more than 35 feet from the point of operation. Under 1910.252(a)(2)(iii)(A)(2), when are fire watchers still required?

• A. Only when the welder works alone
• B. When the combustibles are easily ignited by sparks
• C. Only when the welding job lasts more than one hour
• D. Never, once combustibles are beyond 35 feet

2. Which of these does 1910.252(a)(2)(iii)(B) require of fire watchers?

• A. A state firefighter certification
• B. A position at least 35 feet from the work
• C. Holding the written welding permit
• D. Fire extinguishing equipment readily available, and training in its use

3. Under 1910.252(a)(2)(iii)(B), what must a fire watcher do about a fire that is not obviously within the capacity of the available equipment?

• A. Sound the alarm
• B. Keep fighting it with the available equipment until it is out
• C. Leave the area without telling anyone
• D. Restart welding to finish the job quickly

4. Welding will be done on a metal wall, and the combustibles on the other side are not relocated. What does 1910.252(a)(2)(x) then require?

• A. A sign on the wall and nothing more
• B. Doubling the welding speed
• C. Wetting the welder's side of the wall only
• D. A fire watch on the opposite side from the work

5. The object to be cut cannot be moved, and not all the fire hazards can be removed. What does 1910.252(a)(1)(ii) require?

• A. Guards must be used to confine the heat, sparks, and slag and to protect the immovable fire hazards
• B. The work may go ahead with no further precautions once the movable hazards are gone
• C. The welder must switch to a lower amperage
• D. The work may go ahead if the welder wears a fire-resistant jacket

6. If neither the removal of fire hazards nor the use of guards described in 1910.252(a)(1)(i) and (ii) can be followed, what does the rule require?

• A. The work may proceed if a supervisor is present
• B. The work may proceed if it lasts less than one hour
• C. Welding and cutting shall not be performed
• D. The work may proceed once a fire extinguisher is placed nearby

7. Under 1910.252(a)(3)(i), what must be done to a used drum before welding, cutting or other hot work is performed on it?

• A. It must be painted with a fire-resistant coating
• B. It must be filled with oxygen
• C. It must be turned upside down for one hour
• D. It must be cleaned so thoroughly as to make absolutely certain no flammable materials or vapor-producing substances are present

8. In which of these situations does 1910.252(a)(2)(vi) prohibit cutting or welding?

• A. In an area management has authorized for cutting and welding
• B. In a sprinklered building with the sprinklers in service
• C. In a sprinklered building while the sprinkler protection is impaired
• D. Outdoors, on bare concrete, with no combustibles nearby

9. Under 1910.252(a)(2)(iv), who must inspect the area before cutting or welding is permitted?

• A. The welder's coworker on the next shift
• B. The individual responsible for authorizing cutting and welding operations
• C. The local fire department
• D. The equipment manufacturer

10. Helmets or hand shields must be used during all arc welding or arc cutting operations, excluding which process?

• A. Submerged arc welding
• B. Shielded metal-arc welding
• C. Carbon arc welding
• D. Gas-shielded arc welding

11. Under 1910.252(b)(2)(iii), which of these is one of the ways the rule allows to protect persons next to the welding area from the rays?

• A. A sign asking them not to look at the arc
• B. Noncombustible or flameproof screens or shields
• C. Ordinary prescription glasses
• D. Turning off the room lights

12. General welding on metals not covered in 1910.252(c)(5) through (c)(12) is done in a large room with a high ceiling, but partitions and balconies significantly obstruct cross ventilation. What does 1910.252(c)(2)(i) require?

• A. Natural ventilation only, because the room is large and the ceiling is high
• B. No ventilation, if the welder wears a helmet
• C. Mechanical ventilation
• D. An open window within 35 feet of the work

13. 1910.252(c)(1)(i) bases its ventilation requirements on three factors that govern the amount of contamination welders may be exposed to. Which is one of them?

• A. The number of welders
• B. The outdoor air temperature
• C. The length of the welding cable
• D. The welder's years of experience

14. What does 1910.252(b)(4)(ii) say about ventilation for welding in confined spaces?

• A. It is optional when the job lasts less than one hour
• B. It replaces the need for an attendant outside the space
• C. It is needed only for gas welding, not arc welding
• D. Ventilation is a prerequisite to work in confined spaces

15. Welding in a confined space is finished, and the metal is still hot. What does 1910.252(b)(4)(vii) require of the welder?

• A. Cool the metal with a jet of oxygen
• B. Cover the metal with a canvas tarp
• C. Mark the hot metal or provide some other means of warning other workers
• D. Nothing; hot metal needs no warning once the arc is off

16. How does 1910.253(b)(1)(ii) require a compressed gas cylinder to be marked to identify its gas content?

• A. By the color of the cylinder alone
• B. With the chemical or trade name of the gas, by stenciling, stamping or labeling that is not readily removable
• C. With a paper tag tied loosely to the valve
• D. With the date of the last refill only

17. A cylinder cannot be kept far enough from a cutting operation that sparks, hot slag or flame will not reach it. What does 1910.253(b)(5)(ii)(I) require?

• A. Wrapping the cylinder in a wet rag
• B. Laying the cylinder on its side
• C. Providing fire-resistant shields
• D. Keeping the cylinder valve half open

18. Oxygen cylinders are stored in an outside generator house. What must separate them from the generator or carbide storage rooms under 1910.253(b)(4)(ii)?

• A. A noncombustible, gastight partition without openings, having a fire-resistance rating of at least 1 hour
• B. A chain-link fence
• C. A curtain of fire-resistant cloth
• D. A wooden partition with a self-closing door

19. A special arc welding and cutting process requires open circuit voltages higher than the limits listed in 1910.254(b)(3). What does 1910.254(b)(3)(iii) then require?

• A. That the process be used outdoors only
• B. That a second welder hold the electrode cable
• C. Only a high-voltage warning sign at the machine
• D. Means to prevent the operator from making accidental contact with the high voltage by adequate insulation or other means

20. A portable resistance welding gun and its transformer are suspended from an overhead trolley. What does 1910.255(c)(2) require for them?

• A. A sign telling workers not to stand below
• B. Safety chains or cables capable of supporting the total shock load if any component of the supporting system fails
• C. Daily lubrication of the trolley wheels
• D. A second worker holding a tag line during welding