Consulting Engineers Group Site Engineer Interview Questions, Process, and Tips for Experienced

Socketing criteria for piles in hard rock involves determining the depth of socket required based on rock strength and load capacity.

• Socketing depth should be at least 1-2 times the diameter of the pile for hard rock.

• Rock strength should be assessed using methods like rock core testing or Schmidt hammer test.

• Load capacity of the pile and expected loads should be considered when determining socketing criteria.

• Socketing ...read more

CHSL is used to determine the length of a pile while Pile Integrity Test is used to assess the integrity of a pile.

• CHSL (Cross Hole Sonic Logging) is used to determine the length and integrity of a pile by sending ultrasonic waves between tubes installed in the pile.

• Pile Integrity Test is used to assess the integrity of a pile by sending stress waves through the pile and analyzing the reflected waves to detect any defe...read more

Stressing of I girder involves pre-tensioning steel strands before grouting to ensure structural integrity.

• Pre-tensioning steel strands to desired level of stress

• Grouting process to fill voids and bond strands to girder

• Monitoring stress levels during and after grouting

• Ensuring proper curing of grout for strength

The grade of steel used for structures depends on the specific requirements and design considerations.

• The grade of steel is determined based on factors such as strength, ductility, weldability, and corrosion resistance.

• Common grades of structural steel include ASTM A36, ASTM A572, and ASTM A992.

• Higher grade steels are typically used for more demanding applications or in seismic zones.

• The grade of steel may also vary de...read more

Quality of concrete can be checked through various tests and inspections.

• Perform slump test to check workability of concrete

• Conduct compressive strength test to assess the strength of concrete

• Check for air content to ensure proper mix design

• Inspect for cracks, honeycombing, segregation, and other visual defects

• Use non-destructive testing methods like ultrasonic pulse velocity testing

The slump required depends on the specific project requirements and the type of concrete being used. Admixtures are used to modify the properties of concrete.

• Slump requirements vary based on project specifications and concrete mix design

• Admixtures are used to improve workability, strength, durability, or other properties of concrete

• Examples of admixtures include water reducers, accelerators, retarders, and air-entraini