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Red Seal Carpenter Exam (Interprovincial)

C. Concrete work: practice questions

Our Red Seal Carpenter bank has 31 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

Adding extra water to concrete at the site to make it easier to place will:

  1. Make it cure faster with no drawbacks
  2. Reduce its strength and durability
  3. Have no effect on strength
  4. Increase its strength
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B. Reduce its strength and durability — A higher water-cement ratio weakens concrete and increases shrinkage cracking.

Question 2

Which change increases the lateral pressure on wall forms?

  1. Using stiffer concrete with less slump
  2. Using warmer concrete
  3. Pouring faster
  4. Pouring more slowly
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C. Pouring faster — Faster pours, colder temperatures and higher slump all keep concrete fluid longer and raise pressure.

Question 3

Non-shrink grout is commonly used to:

  1. Make concrete forms
  2. Seal roof shingles
  3. Bond drywall joints
  4. Fill the space under column base plates and equipment bases
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D. Fill the space under column base plates and equipment bases — Non-shrink grout fills bearing gaps without pulling away as it cures.

Question 4

A keyway is formed in the top of a footing mainly to:

  1. Reduce the amount of concrete
  2. Drain water away from the footing and the base of the wall
  3. Resist sideways movement of the wall on the footing
  4. Hold anchor bolts
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C. Resist sideways movement of the wall on the footing — The key gives a mechanical connection that resists lateral sliding of the foundation wall.

Question 5

A footing must step down along a sloping site. The steps should be formed so that:

  1. Only the lowest step is level
  2. Each step is level and meets the depth requirements
  3. Steps are as tall as possible
  4. The footing slopes evenly to follow the natural grade of the ground
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B. Each step is level and meets the depth requirements — Stepped footings keep each bearing surface level and below frost depth where required.

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