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I was interviewed in Sep 2024.
NATM stands for New Austrian Tunneling Method, a construction method for tunnels.
NATM is a tunneling method that involves excavating the tunnel while providing support using rock bolts, shotcrete, and steel ribs.
It is a flexible and adaptable method that allows for adjustments during construction based on the geological conditions encountered.
NATM is commonly used in soft ground conditions where traditional tunneling m...
Standup time refers to the time it takes for concrete to set and gain enough strength to support itself. Tunnel supports are structures used to stabilize the tunnel walls and roof.
Standup time is crucial for ensuring the stability of the tunnel during construction.
Tunnel supports can include rock bolts, shotcrete, steel ribs, and lattice girders.
The type of tunnel support used depends on the geology of the surrounding ...
Blast details include powder factor and quantity of explosives used.
Powder factor is the amount of explosives used per unit volume of rock to be blasted
Quantity of explosives used is typically measured in kilograms or pounds
Blast details are crucial for ensuring safe and efficient tunnel excavation
Cycle time is the total time taken to complete a task or process from start to finish.
Cycle time includes all the time spent on actual work as well as any waiting time or delays.
It is an important metric in project management to assess efficiency and productivity.
For tunnel engineering, cycle time could refer to the time taken to complete a specific phase of tunnel construction, such as excavation or lining installatio
I applied via Whatsaap group and was interviewed in Aug 2023. There were 3 interview rounds.
Powder factor is a measure of the amount of explosive used per unit volume of rock in tunneling operations.
Powder factor is calculated by dividing the weight of explosives used by the volume of rock being blasted.
It is typically expressed in units of kilograms or pounds of explosives per cubic meter or cubic yard of rock.
A higher powder factor indicates a greater amount of explosives used, which can result in more effi...
RMR value stands for Rock Mass Rating value, which is a geotechnical classification system used to assess the quality of rock masses.
RMR value is used in tunnel engineering to evaluate the stability and support requirements of rock masses.
It takes into account various parameters such as rock strength, joint conditions, groundwater conditions, and orientation of discontinuities.
RMR values range from 0 to 100, with highe...
Pullout test is a method to determine the bond strength between concrete and reinforcement in a structure.
Pullout test involves applying a tensile force to a steel bar embedded in concrete to measure the force required to pull it out.
It is used to assess the quality of concrete and the effectiveness of reinforcement in a structure.
The test helps in evaluating the bond strength between concrete and reinforcement, which ...
I applied via Approached by Company and was interviewed before Oct 2022. There were 4 interview rounds.
Cycle time of advancement refers to the time taken for the tunnel boring machine to progress a certain distance.
Cycle time can vary depending on factors such as geology, machine efficiency, and crew experience.
For example, a tunnel boring machine may advance 10-15 meters per day in stable rock conditions.
However, in more challenging ground conditions, the cycle time may be slower due to the need for additional support ...
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I applied via PLACEMENT
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I was interviewed before Sep 2016.
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I applied via Referral and was interviewed in Oct 2020. There were 3 interview rounds.
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posted on 11 Jun 2022
I applied via Campus Placement and was interviewed before Jun 2021. There were 3 interview rounds.
Mathematics, English, Reasoning
An antenna is a device that converts electrical signals into electromagnetic waves and vice versa. Satcom is short for satellite communication.
Antennas are used for transmitting and receiving signals in various applications such as radio, television, and wireless communication.
Satcom refers to the use of satellites for communication purposes, including television broadcasting, internet access, and military communicatio...
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