Raspa Pharma Interview Questions and Answers

Asphalt base course is a layer of asphalt concrete laid on a prepared subgrade or subbase.

• Thickness of asphalt base course varies depending on the traffic load and climate conditions

• It provides a stable base for the asphalt surface layer

• Asphalt warning course is a thin layer of asphalt concrete placed on top of the base course to provide a warning to drivers of an upcoming change in the road surface

• It is typically colored red to indicate caution

• Both base and warning courses a...read more

The maximum and minimum road structure depend on various factors such as traffic volume, soil type, climate, and terrain.

• The maximum and minimum road structure are determined by the type of road and its intended use.

• Factors such as traffic volume, soil type, climate, and terrain affect the maximum and minimum road structure.

• For example, a highway designed for heavy truck traffic will have a thicker and stronger road structure than a residential street.

• Similarly, a road built ...read more

Asphalt density is the mass of asphalt per unit volume. The lose margin is the acceptable range of deviation from the target density.

• Asphalt density is typically measured in pounds per cubic foot or kilograms per cubic meter.

• The lose margin for asphalt density is usually around 0.5 to 1.0 percent.

• If the density falls outside of the lose margin, it may indicate a problem with the asphalt mix or compaction process.

• Proper density is important for ensuring the durability and long...read more

To shift a benchmark, a new benchmark must be established and the old benchmark must be referenced to the new one.

• Establish a new benchmark using a reliable method such as GPS or leveling

• Measure the distance and elevation difference between the old and new benchmarks

• Calculate the correction factor and apply it to the old benchmark measurements

• Update all relevant records and documentation to reflect the new benchmark

• Notify any relevant parties of the benchmark shift

Slopes are named based on their steepness and direction of inclination.

• Slopes can be classified as gentle, moderate, steep, or very steep based on their degree of inclination.

• The direction of inclination can also be used to name slopes, such as north-facing or south-facing slopes.

• Examples of slope names include gentle south-facing slope or very steep east-facing slope.