Construction Materials Testing, Concrete, Level I — Information & Free Practice

The authority publishes percentage ranges for each content area. The practice percentages below use the midpoint of each range, normalized to 100%; they are not exact percentages published by the authority. Practice question counts may differ slightly because of rounding.

• Personal and Worksite Safety — Official range: 5–15% (Practice allocation: 10.05%)

  • Determine and wear personal protective equipment (PPE).
  • Identify and report task-specific hazards.
• Plans and Specifications — Official range: 5–15% (Practice allocation: 10.05%)

  • Identify locations on site from locations on plans.
  • Identify test frequencies and requirements.
• Sampling of Concrete Mixes and Components — Official range: 10–20% (Practice allocation: 15.08%)

  • Collect samples of plastic concrete.
  • Collect samples of mix components (including labeling).
  • Collect masonry units (e.g. block or brick).
  • Document source of samples (e.g. aggregates or plastic concrete).
  • Document placement location for plastic concrete.
  • Document mix information.
• Concrete Mix Sample Preparation, Storage, and Transportation — Official range: 5–15% (Practice allocation: 10.05%)

  • Prepare samples for strength testing.
  • Transport samples of plastic concrete to on-site testing location.
  • Wet sieve plastic concrete.
  • Site cure samples.
  • Transport hardened concrete samples to the laboratory.
  • Lab cure prepared specimens.
  • Reduce samples to testing size.
• Field and Laboratory Testing of Concrete Mixes and Components — Official range: 35–45% (Practice allocation: 40.2%)

  • Determine temperature of plastic concrete.
  • Perform slump tests.
  • Determine air content pressure method.
  • Determine air content volumetric method.
  • Determine air content gravimetric method.
  • Determine unit weight.
  • Cast strength specimens.
  • Perform aggregate gradation tests.
  • Perform moisture content tests.
  • Perform compressive strength tests of concrete cylinders.
• Communication of Results — Official range: 5–15% (Practice allocation: 10.05%)

  • Collect required test data for reports.
  • Document field observations.
  • Complete test forms and related reports.
  • Report results to supervisor.
  • Assess reasonableness of results.
• Equipment Calibration and Maintenance — Official range: 1–8% (Practice allocation: 4.52%)

  • Verify lab testing equipment is calibrated for Level I tests.
  • Verify field testing equipment is calibrated for Level I tests.
  • Verify dimensions of field equipment.
  • Verify equipment operation for Level I tests.