S.M. Consultants Interview Questions and Answers

Strength of concrete refers to its ability to withstand loads or stresses without breaking or deforming.

• Strength of concrete is typically measured in terms of compressive strength, which is the maximum load it can bear before failure.

• Factors affecting concrete strength include water-cement ratio, curing conditions, aggregate quality, and admixtures.

• Concrete with higher strength is often used in structural applications ...read more

The deflection angle of a transcurve is the angle between the tangent lines at the beginning and end of the curve.

• The deflection angle of a transcurve is typically denoted by delta (Δ).

• It is the angle formed between the tangent lines at the beginning and end of the curve.

• The deflection angle is used in civil engineering for designing curved roads, railways, and other infrastructure.

• It helps in determining the curvature...read more

The area of a trapezium can be calculated by taking the average of the two parallel sides and multiplying it by the height.

• Find the length of the two parallel sides of the trapezium.

• Determine the height of the trapezium, which is the perpendicular distance between the two parallel sides.

• Use the formula: Area = (a + b) * h / 2, where a and b are the lengths of the parallel sides and h is the height.

Volume of earthwork in a road can be calculated using cross-sectional area and length of the road.

• Calculate the cross-sectional area of the road at regular intervals

• Measure the length of the road

• Multiply the cross-sectional area by the length to get the volume of earthwork

• For example, if the cross-sectional area is 100 square meters and the length of the road is 1 kilometer, the volume of earthwork would be 100 cubic m...read more

The minimum grade of concrete in an RCC structure should be M20.

• The minimum grade of concrete in an RCC structure is typically M20, which means the concrete mix has a compressive strength of 20 megapascals after 28 days.

• Higher grades of concrete such as M25, M30, M35, etc., can also be used depending on the structural requirements.

• The grade of concrete is specified in the structural design based on factors like the typ...read more

To find the area of an irregular figure, break it down into simpler shapes and calculate their areas separately.

• Break down the irregular figure into simpler shapes like rectangles, triangles, circles, etc.

• Calculate the area of each simpler shape using the appropriate formula (e.g. area of a rectangle = length x width, area of a triangle = 0.5 x base x height).

• Add up the areas of all the simpler shapes to get the total ...read more

The unit weight of steel is typically around 7850 kg/m^3.

• The unit weight of steel is commonly used in structural engineering to calculate the weight of steel members in a structure.

• The unit weight of steel is approximately 7850 kg/m^3, but can vary slightly depending on the specific type of steel.

• For example, the unit weight of stainless steel is around 7480 kg/m^3, while the unit weight of carbon steel is around 7850 ...read more

The minimum % of steel in a RCC column is typically around 1% to 2%.

• The minimum % of steel in a RCC column is usually around 1% to 2% to provide adequate strength and reinforcement.

• The exact percentage may vary depending on the design requirements and load conditions.

• Using too little steel can compromise the structural integrity of the column, while using too much steel can lead to excessive costs.

• For example, a typica...read more

Reinforcement detailing of a column involves specifying the size, spacing, and arrangement of steel bars to ensure structural strength.

• Specify the size and grade of reinforcement bars to be used

• Determine the spacing between the bars based on structural requirements

• Ensure proper cover to protect the reinforcement from corrosion

• Provide adequate lap lengths for splicing of bars

• Consider any special detailing requirements s...read more

Reinforcement detailing is crucial for the stability and durability of a retaining wall.

• Reinforcement bars should be placed in both horizontal and vertical directions to resist lateral earth pressure.

• Proper spacing and cover requirements must be followed as per design specifications.

• Additional reinforcement like shear reinforcement or tie bars may be needed at specific locations.

• Examples: Using stirrups at regular inte...read more

Reinforcement detailing of a chajja involves providing steel bars to support the overhanging structure.

• Chajja is a projecting eave or sunshade typically found in Indian architecture.

• Reinforcement detailing includes providing horizontal and vertical steel bars to support the chajja.

• The size and spacing of the steel bars are determined based on the load and span of the chajja.

• Proper anchoring of the steel bars into the m...read more

Cover requirement for extreme condition is essential for structural integrity and safety.

• Ensure materials used can withstand extreme temperatures, pressures, or forces.

• Consider factors like seismic activity, wind loads, and snow loads in design.

• Include redundancy and fail-safe measures to prevent catastrophic failure.

• Regular inspections and maintenance to ensure continued performance under extreme conditions.