10+ Lico Materials Interview Questions and Answers

The survey for earth's measurement that needs to be done carefully is Geodetic Survey.

• Geodetic Survey is a precise surveying method that takes into account the curvature of the earth and its gravitational field.

• It is used to determine the exact location and elevation of points on the earth's surface.

• This survey is important for construction projects, mapping, and navigation.

• Errors in geodetic survey can lead to significant inaccuracies in measurements and calculations.

• Example...read more

Sudden failure of a structure can be caused by various reasons.

• Poor design or construction

• Natural disasters like earthquakes, floods, and hurricanes

• Lack of maintenance and regular inspections

• Overloading or exceeding the weight limit

• Material defects or degradation over time

• Environmental factors like corrosion or erosion

• Human error or sabotage

• Foundation issues or soil instability

• Age of the structure

• Inadequate safety measures

• Improper use or modifications

• Inadequate training or su...read more

Modular ratio is the ratio of modulus of elasticity of steel to that of concrete in a reinforced concrete section.

• Modular ratio is used to determine the stress distribution in a reinforced concrete section.

• It is denoted by the symbol 'm'.

• The value of modular ratio varies depending on the type of steel and concrete used.

• For example, for mild steel and normal weight concrete, the modular ratio is typically around 280.

• Modular ratio is an important factor in the design of reinfor...read more

Deep beams are provided in building structures to resist high shear forces and bending moments.

• Deep beams are used in structures where the span is large and the load is heavy.

• They are used to resist high shear forces and bending moments.

• Deep beams are also used to support heavy loads from columns or walls.

• They are commonly used in parking garages, bridges, and high-rise buildings.

• Deep beams can be designed as reinforced concrete or steel beams.

• The depth of the beam is usually...read more

The minimum thickness of steel plate for a steel structure depends on various factors such as the load it needs to bear, the type of structure, and the design specifications.

• The thickness of steel plate for a steel structure is determined by the load it needs to bear.

• The type of structure also plays a role in determining the minimum thickness of steel plate.

• Design specifications such as safety factors and material properties also influence the thickness of steel plate.

• For exa...read more

Plumbob is used in plane table survey to ensure verticality of the instrument and accuracy of measurements.

• Plumbob is a weight attached to a string that hangs vertically from the center of the instrument.

• It helps in ensuring that the plane table is perfectly vertical and the measurements are accurate.

• Plumbob is used to mark the exact location of the survey point on the plane table.

• It is also used to align the plane table with the true north direction.

• Plumbob is an essential t...read more

The percentage of steel provided in a slab depends on the design and load requirements.

• The percentage of steel in a slab is determined by the design and load requirements.

• The steel reinforcement in a slab is typically placed in the bottom layer to resist tension forces.

• The percentage of steel in a slab can range from 0.5% to 5% depending on the design.

• The steel reinforcement in a slab is typically in the form of bars or mesh.

• The steel reinforcement in a slab helps to prevent ...read more

Hilly areas in India use various irrigation methods such as terracing, contour farming, and drip irrigation.

• Terracing involves creating steps on the hillside to prevent soil erosion and retain water.

• Contour farming involves planting crops along the contour lines of the hill to prevent soil erosion and retain water.

• Drip irrigation involves providing water directly to the roots of the plants through a network of pipes and emitters.

• Other methods include sprinkler irrigation and ...read more

The percentage of silica in Portland pozzolana cement is typically between 10-25%.

• Silica is a key ingredient in cement and helps to improve its strength and durability.

• Portland pozzolana cement is a type of cement that contains fly ash or volcanic ash.

• The percentage of silica in cement can vary depending on the specific type and brand.

• Excessive amounts of silica in cement can lead to health hazards for workers.

• It is important for civil site supervisors to be aware of the comp...read more

Moment of resistance is used in structural engineering to determine the maximum bending moment a beam can withstand before it fails.

• Moment of resistance is used to design beams and columns in buildings and bridges.

• It helps engineers determine the size and shape of the beam or column needed to support the weight and forces placed upon it.

• Moment of resistance is calculated using the material properties of the beam or column, such as its cross-sectional area and the strength of ...read more

The minimum carbon percentage of mild steel is 0.05%.

• Mild steel is a low carbon steel.

• It is also known as plain carbon steel.

• The carbon content in mild steel ranges from 0.05% to 0.25%.

• Mild steel is used in construction, automotive, and manufacturing industries.

Minimum cover for underwater RCC structures depends on various factors such as water depth, exposure conditions, and concrete quality.

• Minimum cover for underwater RCC structures is generally higher than that for above-water structures.

• The cover should be sufficient to protect the reinforcement from corrosion due to exposure to water and other environmental factors.

• Factors such as water depth, exposure conditions, and concrete quality should be considered while determining the...read more

Nominal size is the size of the sieve that the material passes through, while maximum size is the largest particle size in the aggregate.

• Nominal size is typically expressed as the sieve size that the material passes through, such as 3/8 inch or 10mm.

• Maximum size is the largest particle size in the aggregate, and is typically expressed in the same units as the nominal size.

• The maximum size of aggregate is important in determining the workability of concrete and the strength of...read more

Yellow colour of bricks is due to the presence of iron oxide.

• Iron oxide is a common ingredient in clay used to make bricks.

• The amount of iron oxide present in the clay determines the shade of yellow.

• Bricks can also be artificially coloured yellow using pigments.

• Yellow bricks are popular in construction due to their aesthetic appeal.

The maximum slenderness ratio of a column is the ratio of its effective length to its least radius of gyration.

• The slenderness ratio is used to determine the buckling strength of a column.

• The maximum slenderness ratio varies depending on the material and cross-sectional shape of the column.

• For steel columns, the maximum slenderness ratio is typically around 200.

• For concrete columns, the maximum slenderness ratio is typically around 30.

• Columns with a slenderness ratio greater ...read more

During an earthquake, sand can liquefy and lose its strength, causing instability in structures.

• Sand can behave like a liquid during an earthquake, a phenomenon known as liquefaction.

• This can cause the sand to lose its strength and stability, leading to potential damage to structures built on top of it.

• Civil site supervisors should be aware of the potential for liquefaction and take appropriate measures to ensure the safety of structures.

• These measures may include soil stabil...read more

The minimum size of clay soil is 0.002 mm.

• Clay soil particles are smaller than silt particles.

• The size of clay particles ranges from 0.002 mm to 0.0002 mm.

• Clay soil has a high plasticity and can retain water for a long time.

• The small size of clay particles makes it difficult for water to penetrate the soil.

• Clay soil is commonly found in areas with a high concentration of volcanic ash or sedimentary rocks.