10+ Elivaas Interview Questions and Answers

The weight of the cube used to check the strength of concrete is typically 15 cm x 15 cm x 15 cm and weighs around 29 kg.

• Standard size of cube for testing concrete strength is 15 cm x 15 cm x 15 cm

• Weight of the cube is usually around 29 kg

• The cube is made of concrete from the same batch being tested

Density of common construction materials varies, with cement around 1440 kg/m3, steel around 7850 kg/m3, fine aggregate around 1600-1750 kg/m3, and coarse aggregate around 1200-1750 kg/m3.

• Cement density: 1440 kg/m3

• Steel density: 7850 kg/m3

• Fine aggregate density: 1600-1750 kg/m3

• Coarse aggregate density: 1200-1750 kg/m3

Calculate the weight of steel in a structure based on its dimensions and density

• Determine the dimensions of the steel components (length, width, height)

• Calculate the volume of each steel component using the formula: Volume = Length x Width x Height

• Multiply the volume of each steel component by the density of steel (usually around 7850 kg/m^3) to get the weight

• Sum up the weights of all steel components to get the total weight of steel in the structure

The ratio of cement mortar for outer and inner wall plastering varies depending on the type of wall and desired finish.

• The ratio of cement mortar for outer wall plastering is usually 1:4 (1 part cement to 4 parts sand).

• The ratio of cement mortar for inner wall plastering is typically 1:6 (1 part cement to 6 parts sand).

• However, the ratio can vary based on factors such as the type of wall surface, desired finish, and local building codes.

• It is important to consult with a struc...read more

Cement and steel consumption for slab depends on the design, dimensions, and load requirements.

• Cement consumption is determined by the thickness of the slab and the mix design.

• Steel consumption is influenced by the span, load capacity, and reinforcement requirements.

• For example, a 100mm thick slab may require around 0.5 cubic meters of cement per square meter.

• Steel consumption can vary from 0.5% to 2% of the total slab volume depending on the design.

• Calculations should be don...read more

Block work quantity can be calculated by measuring the dimensions of the blocks and the area to be covered.

• Measure the length, width, and height of the blocks

• Calculate the volume of each block by multiplying the length, width, and height

• Determine the area to be covered by measuring the length and height of the wall

• Divide the area by the volume of each block to get the quantity needed

• Consider adding extra blocks for wastage or breakage

Waterproofing methodology involves various techniques to prevent water penetration and damage to structures.

• Identify the source of water leakage or potential areas of water penetration

• Select appropriate waterproofing materials based on the type of structure and water exposure

• Prepare the surface by cleaning and repairing any cracks or damages

• Apply waterproofing membranes or coatings to create a barrier against water

• Ensure proper installation and sealing of joints and connectio...read more

Bar bending schedule is a document that provides details about the reinforcement steel bars used in a construction project.

• Bar bending schedule (BBS) is prepared by a structural engineer or a detailer.

• It includes information about the size, shape, and quantity of reinforcement bars required for each structural element.

• BBS helps in estimating the amount of steel required, ordering materials, and ensuring proper placement of reinforcement.

• It also provides details about the bend...read more

DMC method is a pile foundation technique that involves driving piles into the ground using a drop hammer.

• DMC stands for Drop Hammer Compaction method.

• It is a commonly used technique in civil engineering for constructing pile foundations.

• In this method, a pile is driven into the ground using a drop hammer, which is lifted and then dropped onto the pile.

• The repeated impact of the drop hammer compacts the soil around the pile, increasing its bearing capacity.

• The DMC method is s...read more

The painting quantity and type of paint depend on the project requirements and specifications.

• The painting quantity is determined by the surface area to be painted and the number of coats required.

• The type of paint depends on factors such as the surface material, desired finish, and environmental conditions.

• Common types of paint include acrylic, latex, oil-based, and epoxy paints.

• The quantity and type of paint may vary for different areas of the project, such as interior and ...read more