Concrete Alberta

Concrete Alberta Plant Certification Auditor Qualification and Producer Orientation Program Exam

You are required to complete a short examination of the key takeaways that you should have acquired from completing this process in order to qualify to administer (in the case of the auditor) or to received (in the case of the producer) plant certification from Concrete Alberta.

Following the successful completion of the examination, a certificate of completion will be issued to you.

Name *

Email *

Phone Number *

Company Name *

Location (city/town) *

1. The Audit contains the following items: *

a) a checklist of plant facility requirements

b) a scale check agreement

c) an engineer’s & member’s conformance agreement

d) all of the above

2. The plant will remain certified as long as: *

a) the plant is moved

b) a plant is sold and the new owner requests a certificate

c) an existing audit is in effect, the plant has submitted all items outlined in the annual documentation submission portion of the checklist, the plant is maintained in the same condition and functioning capabilities as was found when it was certified

3. For a professional engineer to complete the audit and checklist for a ready mixed concrete production facility they must: *

a) be employed by a company directly involved with the cement or ready mixed concrete industry

b) be listed on Concrete Alberta’s approved auditors list

c) have acceptable insurance coverage

d) have obtained a “Certificate of Qualification” from Concrete Alberta’s Plant Certification Auditor Qualification and Producer Orientation Program

e) answers b, c, and d

4. In order to maintain plant certification throughout the 3-year term, a Concrete Alberta member producer must submit the following documentation annually: *

a) scale check data forms

b) annual certified laboratory tested concrete aggregates quality report

c) admixture dispenser check/calibration report

d) CSA compliance certification letter and mill test/production quality reports from the members cementing material suppliers for any non-North American cementing material sources not originally certified to CSA/ASTM standards

e) mill test or production quality test reports for all cementitious materials in use

f) summary of fleet condition report

g) all of the above

5. Should you submit a partially completed plant certification audit and checklist to Concrete Alberta? *

a) yes

b) no

6. A plant must be operating in order for an audit to be completed. *

a) true

b) false

7. Facilities that fail to meet all of the criteria of the audit will have how many weeks to correct any deficiencies: *

a) 2 weeks

b) 4 weeks

c) 6 weeks

d) 3 years

8. A common bag house should: *

a) shake down to the aggregate storage bin

b) shake down to the least affected cementing material silo

c) not be used unless there is no potential compromise of concrete durability

d) b and c

9. Which cementitious feed pipes should be marked and designated: *

a) the GU feed pipe

b) the HS feed pipe

c) the fly ash feed pipe

d) all cementitious feed pipes

10. All concrete aggregates must meet the requirements of: *

a) the Alberta Sand & Gravel Association (ASGA)

b) Bob’s Aggregate Pit

c) CSA specification A23.1

11. Concrete mixing water may be: *

a) domestic water supplied by local municipal authorities

b) potable well water

c) tested and approved wash water

d) all of the above

12. CSA A23.1 requires bi-annual testing of all treated wash water. *

a) true

b) false

13. Concrete admixtures must be: *

a) able to meet the requirements of CSA A23.1 at all times

b) measured and discharged separately

c) agitated unless they are a stable solution

d) stored in such a manner as to prevent damage

e) all of the above

14. Aggregate storage should be configured to: *

a) keep distinct gradings separated so they are not allowed to comingle

b) prevent contamination by fugitive dust that could lead to paste aggregate bond issues

c) facilitate safe access for sampling to validate gradations have not been compromised from transport and handling

d) safe access for inspection of bins for wear and tear that could contribute to cross contamination

e) all of the above

15. The plant certification auditor may accept the scale calibration of a qualified expert such as: *

a) inspections made by the concrete plants own mechanic or concrete batcher

b) inspections made by technicians employed by a scale manufacturer

c) inspections made by a scale service contractor

d) all of the above

e) b and c

16. A signature on the scale check data form indicates that the technician certifies that the scales meet all of Concrete Alberta’s scale requirements at the time of the inspection. *

a) true

b) false

17. Providing no alterations were made to the plant and the plant was not moved; the ready-mixed supplier agrees to have all scales certified at intervals not exceeding: *

a) just prior to the certifying engineer’s visit (approximately three years)

b) every six (6) months

c) every other year

d) every two years

18. Cementing materials are weighed inclusively with other materials (sand, stone, etc.). *

a) true

b) false

19. When batching cementing materials, cement should be introduced into the weigh hopper prior to any supplementary cementing materials. *

a) true

b) false

20. Target and actual batch records should be written in pencil at manual batch plants for easy editing. *

a) true

b) false

21. Each admixture dispenser shall: *

a) measure admixture within ±3% of target amount or ±30 ml (whichever is more)

b) be equipped with a calibrated container or sampling port

c) be suitably located to allow calibrations and adjustments on a regular basis

d) all of the above

22. Which of the following measuring tolerances statements is NOT correct: *

a) cementitious material can be measured by mass within ±1% of target amount

b) water can be measured by volume or mass within ±1% of target amount

c) aggregate can be measured by volume within ±2% of target amount

d) admixtures can be measured by volume or mass within ±3% or (±30 g) of target amount

23. Moisture compensation devices are mandatory for production facility audits. *

a) true

b) false

24. A system where the weighing of all ingredients is actuated separately by the operator but is terminated automatically is best described as: *

a) a manual batching system

b) a semi-automatic batching system

c) an automatic batching system

25. When different kinds of cementitious materials are weighed cumulatively on a single scale, interlocked sequential controls shall be provided for each material. *

a) true

b) false

26. A non-mobile mixer installed at a plant to completely mix all ingredients of the concrete shall be capable of producing concrete in: *

a) the concrete mixed by the unit meets the uniformity requirements of CSA A23.1

b) the range between the highest and lowest value of 3 slump test samples is ±30 mm

c) the range between the highest and lowest value of 3 air content samples is ±0.8%

d) all of the above

27. Truck mixers that only supply concrete for residential concrete projects do not need to be inspected or certified by the third-party engineer. *

a) true

b) false

28. Truck mixers are concrete mixers mounted on trucks or other vehicles and used for complete agitation of concrete ingredients after they have been batched at the plant. *

a) true

b) false

29. All acceptable truck mixers must have: *

a) charging and discharging openings and chutes in good condition

b) the manufacturer’s “rating plate” secured on the frame or inside cab door

c) hopper chutes and surfaces that are reasonably clean and smooth

d) all of the above

30. During summer months, all truck mounted mixers equipped with mixing water must have: *

a) the capacity to dispense mixing water accurately

b) clean and legibly graduated gauge glasses attached to water tanks

c) water pump or injection system in good working order

d) all of the above

31. If mixer blade wear exceeds 10% or the mixer design has been significantly altered the unit will be deemed satisfactory if: *

a) the concrete mixed by the unit meets the uniformity requirements of CSA - A23.1

b) the range between the highest and lowest value of 3 density samples is ±700 kg/m³

c) the range between the highest and lowest value of 3 Air content samples is ±2.5%

d) all of the above

32. Agitating units are drums or containers mounted on trucks or other vehicles in which completely mixed concrete is kept sufficiently agitated during delivery to prevent segregation. *

a) true

b) false

33. Non-agitating units are containers mounted on trucks or other vehicles in which completely mixed concrete is delivered. The unit is constructed in such a manner that interior surfaces are smooth and watertight, with rounded corners. *

a) true

b) false

34. A non-agitating unit will be considered satisfactory if: *

a) the interior surface of the unit is smooth and watertight

b) the unit has means to allow the driver to control discharge of concrete

c) the interior of the unit is in suitable condition to allow proper discharge

d) all of the above

35. Which of the following items on a delivery ticket is not required to meet Concrete Alberta guidelines: *

a) extra water added and on whose authority it was added

b) the specified class or designation of concrete

c) the specified time when the truck arrived on site with the designated concrete

d) truck number and concrete load number

e) c and d

36. Freshly mixed cement, mortar, concrete or grout may cause skin injury. The cautionary warning below should appear in its entirety on all delivery tickets *

Avoid contact with skin whenever possible and wash exposed skin areas promptly with water. If any cement or cement mixtures get into the eyes, rinse immediately and repeatedly with water and get prompt medical attention. Keep children away from cement powder and all freshly mixed cement products.

a) true

b) false

37. Which of the following support documents are necessary for the plant certification audit: *

a) scale calibration records (scale calibration data sheet)

b) material conformance letters

c) admixture calibration records

d) all of the above

38. Concrete facilities issuing delivery tickets that indicate HSE concrete onboard must: *

a) be producing this concrete using Type HS Cement

b) be using GU cement to produce this concrete

c) have current supporting durability test documentation to do so

d) use a blended cement to do so

39. Is the statement below true or false: *

The certifying engineer is responsible for certifying that the “plant” has been inspected and meets the audit requirements of conformance as of the date of inspection. The ready-mixed supplier is responsible to maintain the facility in accordance with the Audit and Check List requirements at all times.

a) true

b) false

40. Complete conformance with all requirements of the Concrete Alberta plant certification audit and checklist document indicates: *

a) all concrete will be within specification and/or customer requirements

b) plant facilities and materials are satisfactory for the consistent production of quality concrete when properly operated

c) the plant will produce concrete that meets the requirements of Alberta Transportation

d) none of the above

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