List of top Mining Engineering Questions

Dust particles most harmful to human respiratory system are the size of
The feasible region of an LP problem in two variables is defined by $ X_1 \leq 4.5, \quad X_2 \leq 3.7, \quad \text{and} \quad X_1 + X_2 \leq 7.0 $ along with the non-negativity constraints. The number of corner feasibility points are:
Which one of the following does not belong to the direct operating cost of a mine?
The act performed to enrich or impoverish, either intentionally or accidentally, the mineral samples taken for assaying is known as
Draeger 174 does not contain
In an underground coal mine a driller, wearing personal protective equipment, was going to workplace along the travelling roadway. A piece of rock fell down from the roof and hit the person on head causing serious injury. The cause of accident is
A Bulkhead door is installed in the development heading of a coal mine to control
A mine disaster can be defined as an accident resulting in number of deaths of utmost
The ratio of the theoretical power input (P$_1$/P$_2$) of two centrifugal fans having the same specific speed and operating at same speed is given by
Total number of injuries in an opencast coal mine employing 900 persons is 9 in a year 2023. As per DGMS norms, the injury rate per 1000 persons employed is
The maximum wet-bulb temperature at working faces as required under mines regulations is
The computation of Graham’s ratio requires the concentration values of
If an underground coal mine produces 60000 tonnes coal per month, as per CMR 2017, the number of under managers needed for the mine is
Incubation period is not related to
Major source of heat in underground coal mines is
As per the DGMS norms, the severity index is a measure of
Kata thermometer is used to measure
Which of the following ventilation system is adopted for continuous miner headings?
Natural ventilation can be caused by
Stone dust barriers in underground coal mines are used to arrest
Sum of static pressure and velocity pressure is known as
Nystagmus is a miner's disease associated with
The relation between COD (Chemical Oxygen Demand) and BOD (Biochemical Oxygen Demand) is
As per the DGMS norms, warning level of noise for the worksite area is
A mine waste dump of pH = 5.2 can be neutralized by adding