Navayuga Engineering Company QA QC Engineer Interview Questions and Answers

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Q1. Fav subject and project related
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Q1. Mix design of concrete?
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Mix design of concrete involves determining the proportions of various ingredients to achieve desired properties.
• The mix design process involves determining the water-cement ratio, aggregate-cement ratio, and admixture dosage.

• Factors such as strength, workability, and durability are considered when designing the mix.

• Examples of admixtures include water reducers, air-entraining agents, and superplasticizers.
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Q2. Durability parameters of concrete?
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Durability parameters of concrete include compressive strength, permeability, and resistance to freeze-thaw cycles.
• Compressive strength is the most commonly used parameter to measure concrete durability.

• Permeability is the ability of concrete to resist water penetration.

• Resistance to freeze-thaw cycles is important in areas with cold climates.

• Other parameters include abrasion resistance, chemical resistance, and shrink...read more
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Q3. ISO 9001 old vs new version?
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ISO 9001:2015 emphasizes risk-based thinking and a process approach to quality management.
• ISO 9001:2015 has a stronger focus on leadership and top management involvement

• The new version emphasizes risk-based thinking and a process approach to quality management

• ISO 9001:2015 has a greater emphasis on measuring and evaluating the effectiveness of quality management systems

• The new version also includes a greater emphasis o...read more
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Q4. Rebar test parameter?
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Rebar test parameters include diameter, length, weight, and tensile strength.
• Diameter: measured using a caliper or micrometer

• Length: measured using a tape measure or ruler

• Weight: measured using a scale

• Tensile strength: measured using a tensile testing machine

• Other parameters may include bend and rebend tests, weldability, and corrosion resistance
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Q5. Documentation at project lab?
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Documentation is crucial in project lab for traceability and quality assurance.
• All activities and results should be documented

• Documentation should be clear, concise and accurate

• Documentation should be easily accessible and organized

• Documentation should include test plans, test cases, test results, and any deviations from the plan

• Documentation should be reviewed and approved by relevant stakeholders
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