20+ Clarus Rcm Infotech Interview Questions and Answers

I have experience working with various pavers including Caterpillar, Volvo, and Dynapac.

• I have used Caterpillar pavers on a highway resurfacing project in my previous job.

• I have also worked with Volvo pavers on a bridge construction project.

• Dynapac pavers were used on a road widening project that I was a part of.

• I am familiar with the features and capabilities of each of these pavers.

The maximum speed of paver during DBM laying should be around 2-3 km/h to ensure proper compaction and quality of the road surface.

• The maximum speed of the paver should be controlled to allow for proper compaction of the DBM layer.

• Excessive speed can lead to inadequate compaction, resulting in a weaker road surface and potential future issues.

• A speed of 2-3 km/h is generally recommended for DBM laying to achieve optimal compaction and quality.

• It is important for the operator ...read more

Head square of a bridge is used to support the weight of the bridge deck and transfer it to the piers.

• Head square is a reinforced concrete beam that connects the bridge deck to the piers.

• It helps to distribute the weight of the bridge deck evenly to the piers.

• The placing method of concrete slab and pier depends on the design of the bridge and the site conditions.

• The concrete slab is usually cast in place on top of the steel or concrete girders.

• The pier is constructed on a fou...read more

Post tensioning and pre tensioning are methods used in prestressed concrete (PSC) girders to enhance their strength and durability.

• Post tensioning involves applying tension to the concrete after it has hardened, using steel tendons or cables.

• Pre tensioning involves applying tension to the tendons or cables before pouring the concrete, which transfers the force to the concrete when it hardens.

• Post tensioning allows for adjustments and repairs to be made after construction, whi...read more

Major bridges are larger and carry more traffic than minor bridges.

• Major bridges are typically longer and wider than minor bridges.

• Major bridges are designed to carry heavy loads and high volumes of traffic.

• Minor bridges are usually shorter and narrower, and they carry lighter loads and lower volumes of traffic.

• Major bridges often span large bodies of water or deep valleys, while minor bridges may span small streams or local roads.

• Examples of major bridges include the Golden ...read more

The minimum socket length for end bearing pile depends on the soil conditions and load requirements.

• The socket length should be sufficient to transfer the load from the pile to the competent stratum below.

• It is determined based on the soil investigation report and design calculations.

• In cohesive soils, the socket length is typically 1.5 to 2 times the diameter of the pile.

• In non-cohesive soils, the socket length may vary depending on the angle of internal friction and the pil...read more

Quality control tests are conducted on soil aggregates, cement, and concrete to ensure their compliance with quality standards.

• Soil aggregates are tested for particle size distribution, moisture content, and compaction characteristics.

• Cement is tested for fineness, setting time, compressive strength, and chemical composition.

• Concrete is tested for slump, compressive strength, air content, and durability.

• Various laboratory tests such as sieve analysis, Atterberg limits, and Pr...read more

The maximum thickness of a layer in highway engineering is typically around 300 mm.

• Maximum thickness is usually limited to around 300 mm for practical and cost-effective reasons

• Thicker layers may lead to excessive settlement or instability

• Thinner layers may not provide adequate strength or durability

• Examples: Base course layer in flexible pavement is typically around 150-300 mm thick

PQC laying refers to the process of laying a Pavement Quality Concrete (PQC) layer on a highway.

• Prepare the subgrade by compacting and leveling the surface.

• Place a layer of granular sub-base material and compact it.

• Construct the edge forms to define the boundaries of the PQC.

• Pour the PQC mix onto the prepared surface and spread it evenly.

• Use a paver machine or manual methods to level and compact the PQC.

• Cure the PQC by applying water or curing compounds.

• Ensure proper jointing...read more

The laying temperature for DBM (Dense Bituminous Macadam) typically ranges from 140 to 160 degrees Celsius.

• Laying temperature for DBM is crucial for achieving proper compaction and bonding of the material.

• The temperature range of 140-160 degrees Celsius ensures that the DBM is workable and can be compacted effectively.

• Excessive heat can lead to premature cooling and inadequate compaction, while lower temperatures may result in poor bonding and durability.

• It is important to mo...read more

The quantity of concrete consumed for one footing depends on the size and depth of the footing.

• The size and depth of the footing determine the volume of concrete needed.

• The type of soil and load capacity also affect the quantity of concrete.

• A typical residential footing may require 0.5 to 1 cubic yard of concrete.

• A larger commercial footing may require several cubic yards of concrete.

The maximum speed of a compactor varies depending on the type and model, but typically ranges from 2 to 6 miles per hour.

• The maximum speed of a compactor is usually between 2 to 6 miles per hour.

• The speed can vary based on the type of compactor (e.g. vibratory, smooth drum) and the model.

• Higher speed compactors are often used for larger projects where efficiency is key.

• Lower speed compactors are used for more precise compaction in smaller areas.

Slump is the required consistency of PQC (Pavement Quality Concrete) for proper construction.

• The required slump for PQC typically ranges from 20-40 mm.

• Slump test should be conducted at the site to ensure the correct consistency.

• Proper slump ensures good workability and strength of the concrete.

• If the slump is too high, it may lead to segregation and bleeding issues.

• If the slump is too low, it may result in difficulty in placing and compacting the concrete.

The difficulties of the base of pier can be addressed through proper design and construction techniques.

• Conduct thorough soil investigation to determine the soil type and bearing capacity

• Design the foundation based on the soil investigation results

• Use appropriate construction techniques such as pile driving or excavation

• Regularly monitor and maintain the pier foundation to ensure stability

• Consider using innovative solutions such as geosynthetics or ground improvement techniqu...read more

The bitumen percentage in Dense Bituminous Macadam (DBM) typically ranges from 5-7%.

• Bitumen percentage in DBM is usually around 5-7%

• The exact percentage may vary based on the specific mix design and project requirements

• Higher bitumen content provides better durability and resistance to weathering

• Lower bitumen content may result in a more rigid mix but may be prone to cracking

• Proper testing and quality control measures are essential to ensure the correct bitumen percentage

Testing of building materials involves following IS codes and codal provisions to ensure quality and safety.

• Testing of building materials is essential to ensure quality and safety in construction projects.

• IS codes are standards set by the Bureau of Indian Standards (BIS) for various building materials.

• Codal provisions refer to the regulations and guidelines specified by relevant authorities for the use of building materials.

• Examples of IS codes for building materials include ...read more

Soil bearing can be improved by various methods.

• Compaction of soil

• Adding stabilizers like lime, cement, or fly ash

• Preloading the soil with a heavy load for a period of time

• Improving drainage to prevent water accumulation

• Using geotextiles or geogrids to reinforce the soil

• Modifying the soil with chemical agents like sodium silicate or calcium chloride

Initial setting time and Final setting time of Cement refers to the time taken for the cement to change from a liquid to a solid state.

• Initial setting time is the time taken for the cement paste to lose its plasticity and become rigid enough to resist certain defined pressure.

• Final setting time is the time taken for the cement paste to completely harden and attain its full strength.

• The setting time of cement is influenced by factors such as the type of cement, water-cement ra...read more

The question is unclear and incomplete. Please provide more information.

• Please clarify the question.

• Provide more context about the bridge and its alignment.

• Are you asking about the alignment of piers in a specific type of bridge?

• Without more information, it is impossible to answer this question.

Metal and sand cement are valuable materials in bridge engineering.

• Metal is used for structural support and reinforcement in bridges.

• Sand cement is used as a binding agent in concrete for bridge construction.

• Metal and sand cement work together to create strong and durable bridges.

• Metal can also be used for bridge decking and railing.

• Sand cement can be mixed with other materials to create different types of concrete for specific bridge components.

The minimum thickness of a slab depends on various factors such as load, span, and material used.

• The minimum thickness of a slab is determined by the load it needs to support. Heavier loads require thicker slabs.

• The span or distance between supports also affects the minimum thickness. Longer spans may require thicker slabs.

• The material used for the slab also plays a role. Different materials have different strength properties, influencing the minimum thickness.

• For example, a ...read more

Soil stabilizer is a chemical or mechanical additive used to improve the properties of soil.

• Soil stabilizers can improve soil strength, durability, and resistance to erosion.

• Chemical stabilizers include lime, cement, and asphalt emulsions.

• Mechanical stabilizers include geotextiles and grids.

• Soil stabilizers are commonly used in road construction and building foundations.

Load actions on a bridge refer to the various forces and weights that act on the structure, including dead loads, live loads, wind loads, and seismic loads.

• Dead loads are the permanent weight of the bridge structure itself, such as the weight of the beams, deck, and piers.

• Live loads are the temporary loads that move across the bridge, such as vehicles, pedestrians, and traffic.

• Wind loads are the forces exerted by wind on the bridge, which can cause lateral movement and vibrat...read more

Mixed design of concrete involves combining different types of aggregates, cement, water, and admixtures to achieve desired properties.

• The mix design process involves determining the proportions of each component based on the desired strength, workability, and durability of the concrete.

• Different types of aggregates, such as gravel, sand, and crushed stone, can be used to achieve different properties.

• Admixtures, such as water reducers and air-entraining agents, can be added t...read more

Concrete M25 refers to a mix of concrete that has a compressive strength of 25 N/mm² after 28 days of curing.

• M25 is a mix of concrete that contains a ratio of 1:1:2 of cement, sand, and aggregate respectively.

• It is commonly used in the construction of buildings, bridges, and other structures.

• The compressive strength of M25 concrete is achieved after 28 days of curing.

• The strength of the concrete can be increased by using additives or by altering the mix ratio.

• M25 is just one ...read more