Goel Ganga Group Junior Engineer Interview Questions and Answers

Density of common construction materials varies, with cement around 1440 kg/m3, steel around 7850 kg/m3, fine aggregate around 1600-1750 kg/m3, and coarse aggregate around 1200-1750 kg/m3.

• Cement density: 1440 kg/m3

• Steel density: 7850 kg/m3

• Fine aggregate density: 1600-1750 kg/m3

• Coarse aggregate density: 1200-1750 kg/m3

The weight of the cube used to check the strength of concrete is typically 15 cm x 15 cm x 15 cm and weighs around 29 kg.

• Standard size of cube for testing concrete strength is 15 cm x 15 cm x 15 cm

• Weight of the cube is usually around 29 kg

• The cube is made of concrete from the same batch being tested

The ratio of cement mortar for outer and inner wall plastering varies depending on the type of wall and desired finish.

• The ratio of cement mortar for outer wall plastering is usually 1:4 (1 part cement to 4 parts sand).

• The ratio of cement mortar for inner wall plastering is typically 1:6 (1 part cement to 6 parts sand).

• However, the ratio can vary based on factors such as the type of wall surface, desired finish, and lo...read more

My goal is to become a proficient Site Engineer by gaining experience, knowledge, and skills in the field.

• Continuously seek opportunities to learn and improve technical skills

• Work on various projects to gain practical experience

• Seek mentorship from experienced engineers

• Stay updated with industry trends and technologies

• Obtain relevant certifications to enhance credibility

• Set specific career milestones to track progress

I envision myself as a Senior Site Engineer leading projects and mentoring junior engineers.

• Leading and managing multiple projects simultaneously

• Mentoring and training junior engineers

• Implementing innovative technologies and practices

• Collaborating with cross-functional teams for successful project delivery

Internal plaster thickness and ratio are important factors in construction projects.

• The standard thickness of internal plaster is usually 12mm for walls and 15mm for ceilings.

• The ratio of internal plaster is typically 1:6 (1 part cement to 6 parts sand).

• The thickness and ratio may vary depending on the specific requirements of the project and the type of surface being plastered.

Slab checking involves verifying the structural integrity and load-bearing capacity of concrete slabs.

• Check for proper reinforcement placement and spacing

• Verify concrete mix design and curing process

• Inspect for any cracks or defects

• Ensure slab thickness meets design specifications

• Perform load testing if necessary

External plaster thickness and ratio are determined based on the type of surface and desired finish.

• External plaster thickness typically ranges from 12mm to 20mm depending on the surface condition.

• The ratio of external plaster mix is usually 1:4 (cement:sand) for rough surfaces and 1:6 for smooth finishes.

• For better adhesion, a bonding agent may be added to the plaster mix.

• Proper curing is essential to ensure the stren