WaterAid Geologist Interview Questions and Answers

Rock bolting is a technique used in geotechnical engineering to reinforce rock mass by inserting steel bolts into the rock.

• Rock bolting is used to provide support to unstable rock formations.

• It involves drilling holes into the rock and inserting steel bolts into them.

• The bolts are then anchored into the rock using grout or resin.

• Rock bolting is commonly used in mining, tunneling, and slope stabilization projects.

• It hel...read more

Grouting is a process of injecting a fluid material into the ground to fill voids or fractures.

• Used in construction to strengthen soil or rock formations

• Can be used to seal leaks in underground structures

• Materials used include cement, bentonite, and chemical grouts

Shortcrete is a type of concrete that is sprayed onto surfaces using a high-pressure hose.

• Also known as shotcrete

• Used in construction for creating walls, pools, and tunnels

• Can be applied to vertical or overhead surfaces

• Requires less formwork than traditional concrete

• Can be reinforced with steel fibers or mesh

• Used in soil stabilization and slope protection

• Commonly used in mining and tunneling projects

I want to join ONGC because of its reputation for innovation and leadership in the oil and gas industry.

• ONGC is a renowned company known for its cutting-edge technology and expertise in the oil and gas sector

• I am impressed by ONGC's commitment to sustainability and environmental protection

• I believe working at ONGC will provide me with valuable experience and opportunities for professional growth

NATM is a tunneling method that uses the surrounding rock mass to support the tunnel. RMR and Q-value are rock mass classification systems. Portal stability is the stability of the entrance to a tunnel. Rock bolts are used to reinforce the rock mass.

• NATM stands for New Austrian Tunneling Method and is a tunneling method that relies on the strength of the surrounding rock mass to support the tunnel.

• RMR (Rock Mass Rating...read more

The rock type can vary depending on the site, but common types include sedimentary, igneous, and metamorphic rocks. The support system refers to the surrounding rock or material that provides stability to the rock formation. The methods of classification of rock type can include visual examination, laboratory testing, and geological mapping.

• Rock types: sedimentary, igneous, metamorphic

• Support system: surrounding rock o...read more