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Carpentry & Masonry Trade Knowledge — Practice

Carpentry: safety: practice questions

Our Carpentry & Masonry bank has 20 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.

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Question 1 · Carpentry

How far must an unsecured scaffold plank extend past the centerline of its support?

  1. It doesn't need to extend
  2. At least 2 feet
  3. At least 1 inch
  4. At least 6 inches
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D. At least 6 inches — 29 CFR 1926.451(b)(4); ends of planks 10 ft or shorter may not overhang more than 12 inches.

Question 2 · Carpentry

At what height must workers at unprotected edges on a construction site generally be protected from falls?

  1. 4 feet or more
  2. 6 feet or more
  3. 10 feet or more
  4. 15 feet or more
Show the answer

B. 6 feet or more — 29 CFR 1926.501(b)(1).

Question 3 · Carpentry

Who may operate a powder-actuated nail gun?

  1. Anyone wearing safety glasses
  2. Any worker over 18 who has read the label on the cartridge box
  3. Only workers trained on that particular tool
  4. Only licensed electricians
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C. Only workers trained on that particular tool — 29 CFR 1926.302(e)(1).

Question 4 · Carpentry

What is the correct angle for an extension ladder?

  1. Two feet out for every foot of height, so it doesn't tip backward
  2. One foot out for every foot of height
  3. One foot out for every four feet of height
  4. One foot out for every two feet
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C. One foot out for every four feet of height — 29 CFR 1926.1053(b)(5)(i).

Question 5 · Carpentry

Why must cutting fiber-cement siding be controlled for dust?

  1. It only affects appearance
  2. It releases asbestos fibers from the cement binder
  3. It releases respirable crystalline silica
  4. It is always flammable
Show the answer

C. It releases respirable crystalline silica — Table 1 of 1926.1153 lists controls for fiber-cement saws.

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