90+ Assistant Engineer - Civil Interview Questions and Answers

I will investigate the cause of failure and take necessary actions.

• I will check if the cubes were properly cured and stored before testing.

• I will verify if the testing machine was calibrated and operated correctly.

• If the failure is due to poor quality of materials, I will reject the lot and order new ones.

• If the failure is due to improper construction practices, I will instruct the workers to rectify the issue.

• I will document the failure and report it to the project manager f...read more

Answering questions related to concrete mix, IS codes, cement setting time, clear cover, transition curve, supervisor elevation, pavement design, and beam cover.

• Mix ratio of concrete is the proportion of cement, sand, and aggregate used in the mixture.

• IS codes are Indian Standards codes that provide guidelines for construction materials and practices.

• Setting time of cement is the time taken by cement to harden and gain strength.

• Clear cover is the distance between the surface ...read more

In the previous project, we used structural steel for the construction of the building.

• Structural steel was used for its high strength and durability.

• It was used in the construction of beams, columns, and other load-bearing elements.

• The specific type of steel used may vary depending on the project requirements and design specifications.

• Examples of commonly used structural steels include ASTM A36, ASTM A572, and ASTM A992.

Water ratio in cement concrete mix is crucial for workability, strength, and durability of the concrete.

• Water ratio affects the workability of the concrete mix - too much water can make it too fluid and difficult to work with, while too little water can make it too stiff.

• The water-cement ratio also influences the strength and durability of the concrete - a lower water-cement ratio generally results in higher strength and durability.

• Maintaining the water ratio involves accurat...read more

Site checks ensure compliance with design, safety, and quality standards during construction.

• Material Testing: Check the quality of concrete, steel, and other materials used.

• Dimensional Checks: Verify that structures are built according to specified dimensions.

• Safety Inspections: Ensure safety measures are in place, such as scaffolding and PPE.

• Soil Testing: Assess soil conditions for foundation stability.

• Workmanship Quality: Inspect the quality of work done by contractors and...read more

The density of cement varies depending on the type of cement used.

• The density of ordinary Portland cement is around 1440 kg/m³.

• The density of white cement is around 1300 kg/m³.

• The density of rapid hardening cement is around 1250 kg/m³.

• The density of low heat cement is around 1200 kg/m³.

• The density of high alumina cement is around 1400 kg/m³.

Acceptance criteria for compressive strength in civil engineering

• Compressive strength is the ability of a material to withstand compressive loads

• Acceptance criteria for compressive strength is determined by the design specifications and standards

• The compressive strength of concrete is typically measured in pounds per square inch (psi)

• The acceptance criteria for compressive strength of concrete varies depending on the type of structure and its intended use

Standard size of bricks is 190mm x 90mm x 90mm and tests are conducted by the quality control team at the work site.

• Standard size of bricks is 190mm x 90mm x 90mm.

• Tests are conducted by the quality control team at the work site to ensure the bricks meet the required standards.

• Tests may include compressive strength test, water absorption test, efflorescence test, etc.

• Quality control team may also check for dimensions, shape, color, and texture of the bricks.

Hydration process is the chemical reaction between cement and water which results in the hardening of concrete.

• Hydration process starts as soon as water is added to cement.

• The reaction produces heat and causes the mixture to harden and gain strength.

• The process continues for weeks and even months, resulting in a stronger and more durable concrete.

• The amount of water used in the mixture affects the hydration process and the strength of the final product.

• Proper curing is necess...read more

Standard thickness of inner and outer plaster in buildings varies depending on the type of construction and location.

• Standard thickness of inner plaster is usually around 12mm to 15mm.

• Standard thickness of outer plaster is typically around 20mm to 25mm.

• Thickness may vary based on factors such as building material, climate, and structural requirements.

• In earthquake-prone areas, thicker plaster may be used for added strength and stability.

Connecting major schemes of irrigation to GTS benchmark is necessary for accurate measurement and monitoring of water levels and flow rates.

• GTS benchmark provides a standardized reference point for measuring elevations and distances in the irrigation scheme.

• Connecting to GTS benchmark ensures consistency and accuracy in data collection and analysis.

• It allows for better monitoring of water levels, flow rates, and overall performance of the irrigation scheme.

• Helps in identifyin...read more

BBS stands for Bar Bending Schedule. Weight of a bar can be calculated using the formula: Weight = (D^2/162) * L, where D is diameter of bar in mm and L is length of bar in meters.

• BBS stands for Bar Bending Schedule

• Weight of a bar can be calculated using the formula: Weight = (D^2/162) * L

• D is diameter of bar in mm

• L is length of bar in meters

GTS and TBM benchmarks are both used in surveying, but GTS benchmarks are fixed points established by the government, while TBM benchmarks are temporary points set by the surveyor.

• GTS benchmarks are permanent and established by the government for accurate and consistent surveying measurements.

• TBM benchmarks are temporary and set by the surveyor for a specific project or survey.

• GTS benchmarks are typically more accurate and reliable due to their fixed nature.

• TBM benchmarks may...read more

Nominal mix is a rough estimate of proportions while design mix is a precise mix of ingredients.

• Nominal mix is used for small construction projects while design mix is used for large projects.

• Nominal mix is not as accurate as design mix.

• Nominal mix uses volume batching while design mix uses weight batching.

• Nominal mix is cheaper than design mix.

• Example of nominal mix: 1:2:4 (cement:sand:aggregate)

• Example of design mix: M20 (1:1.5:3) (cement:sand:aggregate)

To check a window, inspect its frame, glass, and hardware for any damage or wear.

• Check the frame for cracks or warping

• Inspect the glass for chips, cracks, or fogging

• Test the hardware to ensure it opens and closes smoothly

• Check for any gaps or drafts around the window

• Look for signs of water damage or mold

• Consider the age and condition of the window

• Consult a professional if unsure about any issues

The engineering field exists to solve complex problems and improve the quality of life through innovation and technological advancements.

• Engineering is essential for designing and constructing infrastructure such as buildings, bridges, roads, and dams.

• Engineers develop new technologies and improve existing ones to enhance efficiency and productivity in various industries.

• The field of engineering plays a crucial role in addressing environmental challenges and promoting sustain...read more

Mivan construction uses aluminum formwork for rapid and efficient building, featuring specific components for walls and slabs.

• Aluminum Formwork: Lightweight and reusable panels for walls and slabs.

• Columns: Typically 230mm x 230mm or 300mm x 300mm for structural support.

• Beams: Standard sizes like 230mm x 450mm or 300mm x 600mm for load distribution.

• Slabs: Usually 150mm to 200mm thick, designed for optimal strength and insulation.

• Walls: Commonly 150mm thick for internal walls a...read more

Terzaghi's theory is a fundamental concept in geotechnical engineering that relates to soil mechanics and foundation design.

• Terzaghi's theory states that the shear strength of soil is a function of effective stress.

• It is used to analyze the stability of slopes, bearing capacity of foundations, and settlement of structures.

• The theory helps in determining the safe load-bearing capacity of soil and designing foundations accordingly.

• Terzaghi's theory is essential in geotechnical ...read more

We use grade 40 concrete for our site construction.

• Grade 40 concrete is commonly used for structural applications in construction.

• It has a compressive strength of 40 megapascals (MPa) after 28 days of curing.

• Grade 40 concrete is suitable for various construction projects such as buildings, bridges, and pavements.

Typically, 6-7 bags of cement are used in one cubic meter of concrete.

• The amount of cement needed can vary depending on the mix design and application.

• A common ratio for concrete is 1:2:4, which means 1 part cement, 2 parts sand, and 4 parts gravel.

• For a 1 cubic meter of concrete with a 1:2:4 ratio, around 6-7 bags of cement are usually used.

I have completed substation projects up to 220 kV.

• I have experience in completing substation projects up to 220 kV.

• I have successfully completed multiple substation projects ranging from 33 kV to 220 kV.

• I am familiar with the design and construction requirements of substation projects up to 220 kV.

• I have worked on substation projects involving transformers, switchgear, and control systems up to 220 kV.

I have 5 years of experience in building and infrastructure work, including project management, site supervision, and quality control.

• Managed multiple construction projects from start to finish

• Supervised construction sites to ensure work is done according to plans and specifications

• Performed quality control checks to maintain high standards of workmanship

• Collaborated with architects, engineers, and contractors to resolve any issues that arise

• Implemented safety measures to ens...read more

Reinforcement can be checked by visual inspection, measuring diameter, spacing, and cover, and using non-destructive testing methods.

• Visual inspection for any visible damage or corrosion

• Measuring diameter of reinforcement bars using a caliper or micrometer

• Measuring spacing between reinforcement bars using a tape measure

• Measuring cover using a cover meter

• Using non-destructive testing methods such as ultrasonic testing or radiography to check for any hidden defects

Yes, DPC (damp proof course) is required in boundary walls to prevent rising damp.

• DPC is necessary to prevent moisture from rising up through the walls.

• It helps in protecting the structure from dampness and water penetration.

• Common materials used for DPC include bitumen, plastic sheets, and chemical compounds.

• Proper installation of DPC is essential to ensure its effectiveness in preventing dampness.

The quantity of concrete needed for one time concreting depends on the volume of the area to be concreted.

• The quantity of concrete needed is calculated by multiplying the volume of the area to be concreted by the density of concrete.

• For example, if the volume of the area is 100 cubic meters and the density of concrete is 2400 kg/m^3, then the quantity of concrete needed would be 240,000 kg or 240 metric tons.

• Factors such as the thickness of the concrete layer and any reinforc...read more

FRL stands for Full Reservoir Level and MWL stands for Maximum Water Level. FRL is the maximum level up to which a reservoir can be filled, while MWL is the highest level water can reach during a flood event.

• FRL is the maximum level up to which a reservoir can be filled under normal operating conditions.

• MWL is the highest level that water can reach during a flood event or extreme weather conditions.

• FRL is determined based on the design of the reservoir and its intended purpos...read more

Balancing depth in canal refers to maintaining a uniform depth of water throughout the canal to ensure proper flow and prevent flooding.

• Balancing depth is achieved by adjusting the cross-sectional area of the canal to match the required flow rate.

• It involves designing the canal with the appropriate slope and dimensions to prevent water from pooling or flowing too quickly.

• Proper balancing depth helps in efficient water distribution for irrigation or navigation purposes.

• Example...read more