Welspun World Interview Questions, Process, and Tips for Experienced

Crest is the highest point of a layer in a pavement structure.

• Crest is also known as the high point.

• It is important to ensure that the crest is properly designed and constructed to prevent water from pooling on the surface.

• The thickness of the layer at the crest should be sufficient to support the traffic loads.

• Examples of layers in a pavement structure include the subgrade, base course, and surface course.

Tolerance of top layers in highway engineering

• Tolerance refers to the acceptable deviation from the design specifications

• Top layers of a highway include asphalt, concrete, or other materials

• Tolerance is important to ensure the safety and durability of the road

• Factors affecting tolerance include climate, traffic volume, and materials used

• Regular maintenance and inspections can help identify and address tolerance issues

Common defects in MS pipes include corrosion, cracks, leaks, and misalignment.

• Corrosion: Occurs due to exposure to moisture and chemicals, leading to rust and weakening of the pipe.

• Cracks: Can be caused by stress, improper handling, or manufacturing defects, compromising the structural integrity.

• Leaks: Result from faulty joints, damaged seals, or pipe degradation, causing fluid or gas to escape.

• Misalignment: Improper i...read more

SCADA stands for Supervisory Control and Data Acquisition. It is a system used to monitor and control industrial processes.

• SCADA systems collect data from sensors and other devices in real-time

• The data is then processed and displayed on a human-machine interface (HMI)

• Operators can use the HMI to monitor and control the process remotely

• SCADA systems are commonly used in industries such as oil and gas, water treatment, a...read more

The density of CI pipes varies based on the size and thickness of the pipe.

• CI pipes have a density range of 6.9-7.8 g/cm³

• The density of CI pipes can be calculated using the formula: Density = Mass/Volume

• The density of CI pipes is affected by factors such as temperature and pressure

• The density of CI pipes is important for determining their strength and durability

The minimum thickness of OHT Raft depends on various factors such as load capacity, soil type, and seismic activity.

• The thickness of OHT Raft should be calculated based on the load capacity of the structure.

• The soil type and seismic activity of the area should also be considered while determining the minimum thickness.

• The minimum thickness of OHT Raft can vary from project to project depending on the above factors.

• Cons...read more

MS pipes are made of mild steel while DI pipes are made of ductile iron.

• MS pipes are cheaper than DI pipes.

• DI pipes are more durable and have higher tensile strength than MS pipes.

• DI pipes are used for water supply and sewage systems while MS pipes are used for gas and oil pipelines.

• DI pipes have a smoother inner surface which reduces friction and improves flow rate.

• MS pipes are prone to corrosion and require regular m...read more