PNC Infratech Assistant Engineer Interview Questions and Answers for Experienced

Q1. Explain hydration
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Hydration is the process of providing adequate fluids to the body to maintain proper function.
• Hydration is essential for overall health and well-being

• It helps regulate body temperature, transport nutrients, and remove waste

• Drinking water, consuming fruits and vegetables, and electrolyte-rich beverages are ways to stay hydrated
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An written test conducted. Technical questions asked

Q1. Higher authorities took interview and asked few questions related to technical knowledge
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Q2. What is minimum cement used for M30 grade of concrete. Answer is 320 kg
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Minimum cement required for M30 grade of concrete is 320 kg.
• M30 grade of concrete requires a minimum cement content of 320 kg/m3

• The cement content may vary based on factors such as water-cement ratio, aggregate type, and quality of cement used
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Q1. All Civil basics knowledge as per your cv and experience.
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Q2. Size of covering block
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The size of covering block is determined based on the type of structure and its requirements.
• The size of covering block is usually specified in the design drawings or specifications.

• It is important to consider the dimensions and spacing of reinforcement bars when determining the size of covering block.

• The covering block should provide adequate protection to the reinforcement bars from fire, corrosion, and other environ...read more
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Q3. Length of development
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The length of development refers to the duration it takes to complete a project or task.
• The length of development can vary depending on the complexity of the project.

• Factors such as team size, resources, and scope can also impact the length of development.

• It is important to set realistic timelines and milestones to ensure efficient development.

• For example, a simple website development project may take a few weeks, whil...read more
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Q4. Bending moment and Soil test
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Q5. Construction materials in details
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Construction materials are substances used for building and construction purposes.
• Construction materials include cement, concrete, bricks, steel, wood, and glass.

• Cement is a binding agent used in the production of concrete.

• Concrete is a mixture of cement, sand, gravel, and water, used for construction.

• Bricks are rectangular blocks made of clay or concrete, used for building walls.

• Steel is a strong and durable material ...read more
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Q1. Basics of concrete and mortars
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Q2. What do you mean by slump test?
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Slump test is a concrete testing method to measure the consistency and workability of fresh concrete.
• Slump test is performed by filling a mold with fresh concrete, then removing the mold and measuring how much the concrete slumps or settles.

• The result of the slump test indicates the workability of the concrete mix - a higher slump value indicates higher workability.

• The slump test is commonly used in construction to ens...read more
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Q3. What is segregation?
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Segregation is the separation of different components of a mixture based on their physical properties.
• Segregation occurs when particles of different sizes, shapes, or densities separate from each other.

• For example, in a concrete mix, larger aggregates tend to settle at the bottom while smaller particles rise to the top.

• Segregation can also occur in granular materials like sand and gravel during handling and transportat...read more
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Q4. What is the process of brick work?
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The process of brick work involves laying bricks in a specific pattern using mortar to create walls or structures.
• Prepare the surface by cleaning and dampening it

• Lay a bed of mortar on the surface

• Place the bricks in the desired pattern, ensuring they are level and aligned

• Use a trowel to add more mortar between the bricks to secure them in place

• Repeat the process for each layer of bricks until the desired height is reac...read more
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Q1. Describe the whole process of piling
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Piling is a construction technique used to strengthen the foundation of a building by driving piles into the ground.
• Piling involves driving long, slender columns (piles) into the ground to provide support for structures.

• The process starts with site investigation to determine soil conditions and load-bearing capacity.

• Piles can be made of concrete, steel, or timber, depending on the project requirements.

• Piles are driven ...read more
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Q2. How to prepare BBS
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BBS preparation involves calculating quantities of steel reinforcement required for construction projects.
• Start by studying the structural drawings and specifications provided

• Identify the different structural elements like beams, columns, slabs, etc.

• Calculate the total length of each type of reinforcement required

• Use standard formulas and codes to determine the quantity of steel bars needed

• Prepare a detailed Bill of Qu...read more
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Q1. What is unite weight of steel 16mm?
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The unit weight of 16mm steel is approximately 0.615 kg/m.
• Unit weight is crucial for calculating the total weight of steel in construction.

• For 16mm diameter steel bars, the unit weight is about 0.615 kg/m.

• Example: A 12-meter long 16mm steel bar weighs approximately 7.38 kg (0.615 kg/m * 12 m).

• Unit weight can vary slightly based on the steel grade and manufacturing process.
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Q2. What is density of steel?
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The density of steel typically ranges from 7.75 to 8.05 g/cm³, depending on its composition and alloying elements.
• Density varies with different types of steel; for example, stainless steel is denser than carbon steel.

• Common structural steel has a density of about 7.85 g/cm³.

• Density affects the weight of steel structures; heavier steel can lead to stronger but more expensive constructions.

• Steel's density is crucial in e...read more
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Q3. What is ph value
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pH value measures the acidity or alkalinity of a solution on a scale from 0 to 14.
• pH 7 is neutral (e.g., pure water).

• pH < 7 indicates acidity (e.g., lemon juice, pH 2).

• pH > 7 indicates alkalinity (e.g., baking soda, pH 9).

• pH is logarithmic; a change of 1 unit represents a tenfold change in acidity/alkalinity.

• pH affects chemical reactions, biological processes, and environmental conditions.
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