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Gammon Engineers And Contractors interview questions for popular designations
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The weight of a full length 12 mm TMT bar depends on its specific density and length.
The weight of a TMT bar can be calculated using its density and length.
The density of a 12 mm TMT bar is typically around 0.89 kg/m.
To calculate the weight, multiply the density by the length of the bar in meters.
For example, a 12 mm TMT bar with a length of 6 meters would weigh approximately 5.34 kg.
RMR value is calculated by assigning scores to various parameters related to rock mass characteristics.
RMR stands for Rock Mass Rating.
It is calculated by assigning scores to six parameters: uniaxial compressive strength, rock quality designation, spacing of discontinuities, condition of discontinuities, groundwater conditions, and orientation of discontinuities.
The scores for each parameter are added up to get the RMR...
Various instruments are used in tunnel excavation, including drilling machines, blasting equipment, and tunnel boring machines.
Drilling machines are used to create holes in the rock or soil for explosives.
Blasting equipment is used to break up the rock or soil.
Tunnel boring machines are used to excavate tunnels without the need for explosives.
Surveying instruments are used to ensure the tunnel is being excavated in the...
RQD stands for Rock Quality Designation, a measure of rock mass quality used in geology and engineering.
RQD is calculated by measuring the percentage of intact rock pieces longer than 10 cm in a drill core sample.
It is used to assess the strength and stability of rock masses for engineering projects such as tunnels, dams, and foundations.
Higher RQD values indicate better rock quality and greater potential for stability...
I applied via Indeed and was interviewed in Oct 2020. There was 1 interview round.
I applied via Referral and was interviewed before Sep 2020. There were 3 interview rounds.
M/C stands for Machine Control and is used in tunneling for precision and accuracy in excavation.
M/C technology helps in reducing the risk of accidents and errors during excavation.
It allows for real-time monitoring and adjustment of the excavation process.
Examples of M/C used in tunneling include laser-guided systems and GPS-based systems.
M/C can also be used for tunnel boring machines to ensure accurate and efficient...
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