QUIZ:  Pneumatic nail gun safety

Pneumatic nail guns significantly improve productivity in the construction industry, but they can be dangerous when not used properly. According to the Occupational Safety and Health Administration (OSHA), the National Institute for Occupational Safety and Health (NIOSH), and the Center for Disease Control and Prevention (CDC) employers can reduce the number of nail gun accidents by training workers about appropriate safety practices and the major risk factors that lead to injuries.

Below are multiple-choice questions that will test your knowledge of these practices and risks. The answers directly follow the quiz.

1.  According to OSHA, top nail gun risks include:
a.    Accidental nail discharge or ricochet off a hard surface
b.    Nail penetration through materials or nails missing the intended work surface
c.    Practices like nailing in an awkward position or bypassing and disabling gun safety features
d.    All of the above
e.    None of the above 

2. The safest trigger type is the:
a.    Single sequential trigger
b.    Full sequential trigger
c.    Contact trigger
d.    Single actuation trigger
e.    Striker trigger

3.  Full sequential triggers:
a.    Is also known as a double-shot trigger
b.    Lowers the risk of double fires and unintentional nail discharge
c.    Allows nails to be bump fired
d.    Can be pulled before the nail gun makes contact
e.    Are not as safe as other trigger types 

4.  Studies show when workers use nail guns with multi-shot contact or single-shot sequential triggers:

a.  The workplace is safer
b.  Their productivity doubles 
c.   The risk of injury is twice as high 
d.   All of the above
e.   None of the above
5. OSHA recommends:
a.   Always using a traditional hammer for nailing
b.   Providing nail guns with full sequential triggers to only the most experienced workers
c.   Using full sequential triggers where lumber must be held in place by hand
d.   All of the above
e.   None of the above

It is important to provide thorough nail gun training for workers, teaching about all of the following EXCEPT:        

a.     The various trigger types
b.     Common nail gun risks
c.     How to disable safety mechanisms 
d.     Safety supplies
e.     Safety procedures

7. To protect workers using nail guns, provide personal protective equipment (PPE) such as:
a.    Foot protection
b.    Hard hats

c.    Ear plugs or earmuffs 

d.    High-impact eye protection like safety glasses or goggles marked ANSI Z87.1

e.    All of the above

8. Research shows many nail gun accidents are not reported. Encourage workers to report all injuries so:

a.    Jobsite risks can be easily identified
b.    Accidents and close calls can be used to remind work crews about nail gun safety
c.    Employers can reduce hazards at worksites
d.   Workers can receive medical attention

e.   All of the above 

9.  OSHA recommends nail gun training should do all of the following EXCEPT:
a.    Be conducted in rhyme
b.    Include hands-on learning
c.    Allows workers to practice shooting the actual nail guns they will use on the job
d.    Incorporate direct feedback on workers’ shooting technique
e.    Discuss appropriate PPE

10. Employers should keep first aid kits on the jobsite to treat injuries. They should also encourage hurt workers to seek medical care immediately – even for hand injuries that seem minor – because:

a.    Research suggests one in four nail gun hand injuries can cause damage to nerves, joints, and tendons 
b.    Wounds can be much worse than they appear
c.    Materials can contaminate wounds and cause infections
d.    None of the above
e.    Choices a, b, and c are correct

Answers:  1 – d, 2 – b, 3 – b, 4 – c, 5 – c, 6 – c, 7 – e, 8 – e, 9 – a, 10 – e

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