General Contracting quiz

More questions about General Contracting

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   Which US agency enforces safety rules on construction sites?

   Answer: OSHA

   Why: OSHA opened in 1971 after the 1970 safety law; US worker deaths later fell from about 38 a day in 1970 to 15 a day in 2023.

2. 2 Medium

   Which structural element transfers the weight of the building to the earth?

   Answer: Footing

   Why: Building codes set them below the local frost line: soil that freezes above it would heave the whole structure up, then drop it again in spring.

3. 3 Hard

   What protects an owner if a contractor fails to complete work?

   Answer: Performance bond

   Why: A surety is not an insurer; it can hire another firm to finish the job, then bill the defaulting contractor for every dollar it spent.

4. 4 Easy

   What sticky food did ancient builders use to strengthen wall mortar?

   Answer: Sticky rice

   Why: The Ming city wall of Nanjing still stands on lime mortar whose sticky rice amylopectin kept the calcite crystals small and dense.

5. 5 Medium

   How many board feet are in a twelve-foot two-by-four?

   Answer: Eight

   Why: Board feet use nominal size, so a 2x4 counts as 2 by 4 inches even though a planed one really measures 1.5 by 3.5.

6. 6 Hard

   What test measures the consistency and workability of concrete?

   Answer: Slump test

   Why: Duff Abrams published the method in 1918 at Chicago's Lewis Institute, which is why the metal cone still carries his name.