TCS Interview Questions and Answers

CBR test is a laboratory test to determine the strength of subgrade soil for highway construction.

• CBR stands for California Bearing Ratio.

• It measures the strength of subgrade soil by comparing the pressure required to penetrate the soil with a standard material.

• CBR values help in designing the thickness of pavement layers for highways.

• Higher CBR values indicate better soil strength and require less pavement thickness.

• For example, a CBR value of 10 means the soil can support 1...read more

Embankment is the raised structure built with earth or other materials, while subgrade is the natural ground level beneath the pavement.

• Embankment is man-made, built with materials like soil, rock, or concrete to raise the road level above the surrounding terrain.

• Subgrade is the natural ground level beneath the pavement, prepared to support the road structure.

• Embankment provides stability and support to the road, while subgrade serves as the foundation for the pavement.

• Exampl...read more

Misdesign of bituminous mix can lead to premature pavement distress and reduced pavement life.

• Improper selection of aggregate gradation

• Incorrect binder content

• Inadequate compaction during construction

• Poor quality control measures

• Lack of proper drainage design

• Failure to consider traffic volume and loadings

Merge sort is a divide-and-conquer algorithm that recursively divides an array into two halves, sorts them, and then merges them.

• Merge sort has a time complexity of O(n log n).

• It works by dividing the array into two halves, sorting each half, and then merging them back together.

• The merge step involves comparing elements from both halves and placing them in the correct order.

• Merge sort is a stable sorting algorithm, meaning that it preserves the relative order of equal element...read more

Planning of man power involves assessing staffing needs, creating schedules, and ensuring adequate coverage.

• Assess staffing needs based on facility size, services offered, and peak hours of operation

• Create schedules that balance workload and employee availability

• Ensure adequate coverage by cross-training employees and having backup plans in place

• Regularly review and adjust staffing plans based on changing needs and budget constraints