List of top Mining Engineering Questions

For a mixture of inflammable gases, both the lower and upper explosibility limits can be computed using
The water gauge developed and quantity circulated with an axial flow fan depends on
What hazard does inundation refer to in underground mines?
Which rescue apparatus is commonly used by mine rescue teams to provide breathable air in toxic environments?
What does a Safety Management Plan (SMP) in mining primarily focus on?
The cross-measure borehole method is used for
A centrifugal fan rotating at \(500~\mathrm{rpm}\) delivers \(70~\mathrm{m^3/s}\) of air. If the speed is reduced to \(200~\mathrm{rpm}\), the quantity of air delivered in \(\mathrm{m^3/s}\) will be
The primary cause of subsurface fires in underground mines is
Which mine gas is colourless, odourless, and highly toxic, often called the “silent killer” in mining?
In a centrifugal flow fan, the conversion of velocity pressure to static pressure is accomplished with the help of
In underground mining, what is the main factor contributing to dust explosions?
If the CO/CO\(_2\) deficiency ratio in a mine is \(2\%\), it indicates
In an underground coal mine, a fan delivers air through a cross-sectional area of \(5~\mathrm{m^2}\) with an average air velocity of \(4~\mathrm{m/s}\). What is the quantity of air circulated by the fan?
Which one of the following is used as an escape apparatus?
In a mine ventilation system, the resistance of an airway is such that when air quantity is \(10~\mathrm{m^3/s}\), the pressure drop is \(100~\mathrm{Pa}\). What will be the pressure drop when the air quantity is increased to \(20~\mathrm{m^3/s}\)?
The chemical Hopcalite is used in
Quantity of air to be circulated to underground workings where \(150\) workers are employed in a largest shift and daily production is \(500\) t will be
The operating point of a mine fan is
In mine water pollution control, sedimentation ponds primarily remove
If the wet bulb temperature of air at a particular place in a mine is \(31^\circ\mathrm{C}\), then the velocity of air in that place should be
Topsoil preservation in mine land reclamation is important because it
As per Central Pollution Control Board guidelines, the permissible daytime noise level in residential areas is
The first step in Environmental Impact Assessment (EIA) process is
The Gaussian plume model is primarily used to estimate
The most effective method for controlling dust in haul roads of opencast mines is