10+ Senior Civil Supervisor Interview Questions and Answers

There are primarily two types of waterproof treatments for wet areas: surface waterproofing and integral waterproofing.

• Surface waterproofing involves applying a waterproof coating or membrane on the surface of the wet area to prevent water penetration.

• Integral waterproofing involves adding waterproofing agents directly into the concrete mix to make the structure itself waterproof.

• Examples of surface waterproofing include using bituminous coatings, acrylic coatings, or cementi...read more

The minimum cover required for reinforcement in slab beams is typically 20mm.

• Minimum cover is usually specified in the design drawings or specifications

• The cover helps protect the reinforcement from corrosion and fire damage

• In most cases, the minimum cover for slab beams is around 20mm

• Proper cover ensures the durability and strength of the structure

The number of times tapping during cube casting varies depending on the specific requirements and materials used.

• The number of times tapping during cube casting is determined by factors such as the type of concrete mix, desired strength, and casting method.

• Tapping is done to remove air bubbles and ensure proper compaction of the concrete.

• In general, cube casting may involve tapping the mold multiple times at different stages of the casting process.

• The number of taps can range...read more

The number of lines going for flat is not provided.

• The number of lines going for flat is unknown.

• There is no available data to answer this question.

• The question does not provide any context or criteria for determining the number of lines.

Concrete tests before pouring ensure quality and strength of the structure.

• Slump test to measure the consistency of concrete

• Compression test to determine the strength of concrete

• Air content test to check for air bubbles in the concrete

• Temperature test to ensure concrete is within specified range

• Moisture test to prevent excess water in the mix

I would prefer curing compound for curing as it provides a more consistent and effective method of curing concrete.

• Curing compound forms a barrier on the surface of the concrete, preventing moisture loss and ensuring proper hydration.

• Water curing can be labor-intensive and may not provide as uniform coverage as curing compound.

• Curing compound is often more cost-effective in the long run compared to the labor and water costs of water curing.

• Curing compound can also help in red...read more

The sequence of finishing activities typically involves painting, flooring, installation of fixtures, and final cleaning.

• Painting walls and ceilings

• Installing flooring such as tiles or hardwood

• Fixtures installation like lights, faucets, and cabinets

• Final cleaning of the area

Standard thickness for cement plaster is typically 12mm to 15mm.

• Standard thickness for cement plaster is usually between 12mm to 15mm.

• Thicker plaster may be required for specific applications or to achieve certain finishes.

• The thickness of plaster can vary based on the surface being plastered and the desired outcome.

• For example, interior walls may require a thinner plaster layer compared to exterior walls.

• It is important to follow manufacturer recommendations and industry sta...read more

The main bar of span is laid by following the design drawings and specifications.

• Refer to the design drawings and specifications for the required size and spacing of the main bar.

• Ensure that the main bar is placed at the correct depth and alignment.

• Use appropriate supports and spacers to maintain the position of the main bar during concrete pouring.

• Check for any defects or damages in the main bar before installation.

• Ensure that the main bar is securely fastened to the support...read more

Column casting process involves pouring concrete in layers of 500mm each.

• Column formwork is set up to the required dimensions

• Concrete is poured in layers of 500mm thickness

• Each layer is compacted and leveled before pouring the next layer

• Reinforcement bars are placed within the column formwork for added strength

• The process is repeated until the desired height of the column is reached

CLC blocks come in various sizes, typically ranging from 200mm to 300mm in width.

• CLC blocks are lightweight concrete blocks made from cement, fly ash, and foam.

• The size of a CLC block can vary, but common sizes include 200mm, 225mm, 250mm, and 300mm in width.

• The length and height of CLC blocks also vary depending on the manufacturer and project requirements.

The correct grade column is determined by the quality and strength of the materials used in construction.

• The grade column is typically determined by the engineer based on the load-bearing requirements of the structure.

• Common grades for columns include Grade 250, Grade 300, and Grade 350, with higher grades indicating stronger materials.

• The correct grade column must be selected to ensure the safety and stability of the building.

Waterproof treatment involves applying materials to prevent water penetration into structures.

• Surface preparation including cleaning and repairing any cracks or holes

• Application of waterproofing materials such as membranes, coatings, or sealants

• Ensuring proper curing and drying time for the materials to effectively seal the surface

• Regular maintenance and inspection to ensure long-lasting waterproofing

• Examples: using bituminous coatings for roofs, applying epoxy injections for...read more

Mix proportion refers to the ratio of different materials used in a concrete mix to achieve desired properties.

• Mix proportion is typically expressed as the ratio of cement, sand, and aggregate in a concrete mix.

• For example, a common mix proportion for concrete is 1:2:4, which means 1 part cement, 2 parts sand, and 4 parts aggregate.

• The mix proportion can vary depending on the desired strength, workability, and durability of the concrete mix.

Yes, there are tests for rebar to ensure quality and compliance with standards.

• Common tests for rebar include tensile strength test, bend test, and chemical composition analysis.

• Tensile strength test measures the maximum stress a rebar can withstand before breaking.

• Bend test evaluates the rebar's flexibility and ability to bend without breaking.

• Chemical composition analysis ensures the rebar meets the required standards for elements like carbon and sulfur.

Shuttering scaffolding is a temporary structure used to support formwork during construction.

• Shuttering scaffolding is also known as formwork scaffolding.

• It is used to support the formwork which holds wet concrete in place until it sets.

• Shuttering scaffolding can be made of wood, steel, or aluminum depending on the project requirements.