CCI CCI Quality Control & Assurance 2

Question 1

What is the correct curing temperature range for standard Portland cement concrete to achieve optimal strength gain?

Accepted Answer

50°F to 95°F (10°C to 35°C)

Answer

ACI 308 specifies that concrete should be maintained between 50°F and 95°F during curing to allow proper hydration and strength development.

Question 2

What is the purpose of pre-installation conferences in a quality control program?

Accepted Answer

To ensure all parties understand requirements, materials, and procedures before critical work begins

Answer

Pre-installation conferences align the contractor, subcontractor, inspector, and design team on specifications, sequencing, and quality requirements before work starts.

Question 3

During quality control inspection of structural steel bolt installation, what torque verification method uses a calibrated wrench to check installed bolts?

Accepted Answer

Turn-of-nut verification or torque-wrench verification per AISC and RCSC specifications

Answer

AISC and RCSC require pretensioned bolts to be verified by approved methods including calibrated torque wrench testing or turn-of-nut verification with inspection.

Question 4

What is the key difference between quality control (QC) and quality assurance (QA) in construction?

Accepted Answer

QC is performed by the contractor to meet specifications; QA is performed by an independent party to verify compliance

Answer

QC is the contractor's internal self-checking process, while QA is the independent verification by the owner, inspector, or third-party to confirm QC is working.

Question 5

When inspecting fireproofing (spray-applied fire-resistive material) on structural steel, what is the primary measurement the inspector records?

Accepted Answer

Dry film thickness using a calibrated depth gauge at required test intervals

Answer

The thickness of applied fireproofing is the critical performance characteristic, measured with a calibrated depth gauge to verify the required hourly fire rating will be achieved.

(CCI) Certified Construction Inspector Practice Test

(CCI) Certified Construction Inspector Practice Test

CCI CCI Quality Control & Assurance 2