Flowmac Engineering Corporation Interview Questions and Answers

The super-elevation of a district road with a 1000 m horizontal curve for a design speed of 75 km/h.

• Super-elevation is the banking of a road to counteract the centrifugal force on vehicles during a curve.

• The formula to calculate super-elevation is e = (v^2) / (g * r), where e is the super-elevation, v is the design speed in m/s, g is the acceleration due to gravity, and r is the radius of the curve.

• First, convert the design speed from km/h to m/s: 75 km/h = 20.83 m/s.

• Next, ca...read more

A beam is a horizontal or inclined structural member that carries loads perpendicular to its longitudinal axis, while a slab is a flat, horizontal structural element that is typically used in floors and roofs.

• Beams are used to support vertical loads, while slabs are used to support horizontal loads.

• Beams are typically deeper than they are wide, while slabs are typically wider than they are deep.

• Beams are often used in bridges, buildings, and other structures, while slabs are ...read more

Design steps for a column include determining load requirements, selecting materials, calculating dimensions, and creating a detailed drawing.

• Determine load requirements based on the intended use of the column

• Select appropriate materials based on load requirements and aesthetic preferences

• Calculate dimensions of the column based on load requirements and material properties

• Create a detailed drawing of the column design, including all necessary dimensions and specifications

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 and alignment of the curve for smooth and safe transporta...read more

SFD and BMD for an overhanging beam

• Determine the reactions at the supports

• Draw the SFD by taking sections and finding the net force

• Draw the BMD by taking sections and finding the net moment

• Account for any point loads or moments

• Check for equilibrium at each section

Zero correction in post-tensioning refers to the adjustment made to the prestressing force to account for the elongation of the tendons.

• Zero correction compensates for the elongation of the tendons due to the relaxation of steel and creep of concrete.

• It ensures that the desired prestressing force is achieved after the relaxation of the tendons.

• The correction is calculated based on the initial elongation of the tendons and the expected relaxation.

• For example, if the initial el...read more

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 like bridges, high-rise buildings, and dams.

• Commonly used ...read more