Kalyan Toll Infrastructure Mechanical Incharge Interview Questions and Answers for Experienced

Bentonite is used as a drilling fluid to stabilize boreholes before pulsing.

• Bentonite is mixed with water to form a slurry and pumped into the borehole.

• The slurry fills the borehole and stabilizes the walls, preventing collapse.

• After the bentonite has set, pulsing can be done without the risk of borehole collapse.

• Pulsing is a technique used in geophysical exploration to measure the properties of the subsurface.

Productivity of machinery and manpower is crucial for efficient operations.

• Efficient machinery and skilled manpower can increase productivity.

• Regular maintenance of machinery can prevent downtime and increase productivity.

• Proper training and motivation of manpower can also improve productivity.

• Use of automation and technology can further enhance productivity.

• Productivity can be measured using metrics such as output per

Standard thumb rule in estimation

• Thumb rule is a rough estimate based on experience

• It is not accurate and can vary based on project

• Example: 1 hour per page for content writing

• Example: 1 month per developer for a software project