J. Kumar Infraprojects QC Engineer Interview Questions and Answers

Q1. 1. What is Concrete Mix Design?
Ans. 
Concrete mix design is the process of determining the proportions of cement, water, aggregates, and admixtures to produce concrete with desired properties.
• Concrete mix design involves selecting the appropriate materials and determining their proportions to achieve the desired strength, workability, and durability of the concrete.

• Factors such as the type of cement, aggregate gradation, water-cement ratio, and admixtures...read more
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Q2. What is the maximum Liquid Limit & Plasticity Index allowed in earth work in embankment/subgrade soil ?
Ans. 
Liquid limit should not exceed 40% and Plasticity Index should not exceed 20% for earth work in embankment/subgrade soil.
• Liquid limit and Plasticity Index are important parameters to determine the suitability of soil for construction purposes.

• Higher values of Liquid limit and Plasticity Index indicate that the soil is more susceptible to deformation and settlement.

• For earth work in embankment/subgrade soil, the maximum...read more
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General aptitude and domain-specific questions.

Q1. Self introduction
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Q2. What are the steps in pcb design process.
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Q3. What is demux and mux?
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Q1. Motor type, Pump lowering, ESR piping etc.
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Q2. Solar Specification
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Q1. Notice period is negotiable
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Q2. 30%hike on current ctc
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General knowlegde, Basic Aptitude, Domain Technical MCQ

Genx vs Genz, Altitude and comparsion

Q1. Components of Transformer
Ans. 
Components of a transformer include core, windings, and insulation.
• Core: Provides a path for magnetic flux

• Windings: Primary and secondary coils for inducing voltage

• Insulation: Prevents short circuits and ensures safety
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Q2. Question based on series and parallel resistance
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Q1. Specifiacation of machinery
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Specification of machinery refers to the detailed requirements and characteristics of a machine or equipment.
• Includes dimensions, materials, performance criteria, and safety features

• Should be clearly defined to ensure proper design and functionality

• Examples: maximum load capacity, operating temperature range, power consumption
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Q2. Schedule maintenance interval
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Q1. What are doing in metro project
Ans. 
I am responsible for ensuring quality control and quality assurance in the construction of the metro project.
• Conducting inspections and tests on materials used in construction

• Ensuring compliance with project specifications and standards

• Identifying and resolving any quality issues that may arise

• Collaborating with project managers and contractors to maintain quality standards
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Q2. You know about pre casting
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Pre casting is a construction method where concrete elements are cast in a different location before being transported to the construction site.
• Pre casting helps in ensuring quality control and reducing construction time on site.

• Examples include precast concrete panels, beams, and columns.

• It allows for better planning and coordination of construction activities.
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