Mine System Engineering MCQ

Test your knowledge with important Mine System Engineering MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Mine System Engineering MCQs on Bissoy. Bissoy App

• The individual reliability values of four sub-systems are given in the figure below. The reliability of the system is<br><img src="/images/question-image/mining-engineering/mine-system-engineering/1682421261-M2-7-40-36.PNG" title="Mine System Engineering mcq question image" alt="Mine System Engineering mcq question image">
  ক

  0.42

  খ

  0.22

  গ

  0.61

  ঘ

  0.52
• A mining machinery company has four plants at locations A, B, C, and D and three warehouses at destinations X, Y and Z. The number of machine units available at the plants A, B, C and D are 5, 8, 7 and 14 respectively. The demands at X, Y and Z are 7, 9 and 18 respectively. The unit costs of transportation in rupees as follows:<br>
  ক

  <table class="table-style-1"> <tr> <td rowspan="2"></td> <td colspan="4">Destinations</td> </tr> <tr> <td></td> <td>X</td> <td>Y</td> <td>Z</td> </tr> <tr> <td>Locations</td> <td>A</td> <td>20</td> <td>70</td> <td>40</td> </tr> <tr> <td></td> <td>B</td> <td>30</td> <td>30</td> <td>10</td> </tr> <tr> <td></td> <td>C</td> <td>50</td> <td>40</td> <td>70</td> </tr> <tr> <td></td> <td>D</td> <td>10</td> <td>60</td> <td>20</td> </tr></table><br>The total cost of transportation in rupees based on the initial basic feasible solution obtained by the north-west corner rule is 760

  খ

  800

  গ

  1020

  ঘ

  1110
• Three jobs A, B and C are to be assigned to three machines X, Y and Z. The processing costs are given below:<br>
  ক

  <table class="table-style-1"> <tr> <td rowspan="2" colspan="2"></td> <td colspan="3">Machines</td> </tr> <tr> <td>X</td> <td>Y</td> <td>Z</td> </tr> <tr> <td rowspan="3">Job</td> <td>A</td> <td>19</td> <td>28</td> <td>31</td> </tr> <tr> <td>B</td> <td>11</td> <td>17</td> <td>31</td> </tr> <tr> <td>C</td> <td>12</td> <td>15</td> <td>13</td> </tr></table><br>The minimum total cost of assigning the jobs to the machines is. 60

  খ

  54

  গ

  51

  ঘ

  49
• Activity durations in PERT and CPM are decided on the following consideration
  ক

  PERT - stochastic, CPM - deterministic

  খ

  PERT - stochastic, CPM - stochastic

  গ

  PERT - deterministic, CPM - deterministic

  ঘ

  PERT - deterministic, CPM - stochastic
• In an opencast mine with shovel-dumper combination have 1 shovel and 6 dumpers. The reliability of the shovel is 0.9 and all the dumpers have equal reliability of 0.8. What is the system reliability?
  ক

  0.899

  খ

  0.576

  গ

  0.720

  ঘ

  0.160
• A mining company has three mines (MI, M2 and M3) that supply coal to three power plants (P1, P2 and P3). The three mines produce 900. 1000 and 1200 te of coal per day respectively. The power plant requirements from these three mines are 1200. 1000 and 900 te per day respectively. The unit cost of transporting coal from the three mines to the three power plants in Rs. is given below<br>
  ক

  <table class="table-style-1"> <tr> <td rowspan="2" colspan="2"></td> <td colspan="3">Power Plants</td> </tr> <tr> <td>P1</td> <td>P2</td> <td>P3</td> </tr> <tr> <td rowspan="3">Mines</td> <td>M1</td> <td>8</td> <td>10</td> <td>12</td> </tr> <tr> <td>M2</td> <td>12</td> <td>13</td> <td>12</td> </tr> <tr> <td>M3</td> <td>14</td> <td>10</td> <td>11</td> </tr></table><br>Based on the initial basic feasible solution, using Vogel's approximation method, the total transportation cost in Rs. is 31200

  খ

  31400

  গ

  32800

  ঘ

  40000
• For an LP problem, identify the incorrect statement
  ক

  Optimal point lies in one of the corner points

  খ

  Objective function is linear

  গ

  All the constraints are linear

  ঘ

  Optimal point lies in anyone of the interior points of the feasible region
• A bunker-conveyor system as shown in the figure works under the following scheme:<br>i. Bunker and two conveyors running<br>ii. Bunker and either of the two conveyors running<br>If the bunker and the two conveyors have identical reliability of 0.9. the system reliability is<br><img src="/images/question-image/mining-engineering/mine-system-engineering/1682421214-M2-7-37-33.PNG" title="Mine System Engineering mcq question image" alt="Mine System Engineering mcq question image">
  ক

  0.729

  খ

  0.810

  গ

  0.999

  ঘ

  0.891
• A system consists of four elements A, B, C and D which are connectec functionally in a parallel configuration. The individual reliability of the elements is 0.80, 0.82, 0.85 and 0.90 respectively. The reliability of the system is
  ক

  0.498

  খ

  0.602

  গ

  0.750

  ঘ

  0.999
• The three time estimates of PERT network are assumed to follow
  ক

  Exponential

  খ

  Normal

  গ

  Beta

  ঘ

  Gamma
• A company has three mines at locations A, B and C, which supply coal to power plants at D, E, F and G. Mines A, B and C produce 1800 t/day, 1700 t/day, and 2900 t/day respectively. Daily raw coal requirements at the power plants D, E, F and G from these mines are 2050 t, 1600 t, 1300 t, and 1450 t respectively. Unit transportation costs are as follows:<br>
  ক

  <table class="table-style-1"> <tr> <td rowspan="2">Mines ↓</td> <td colspan="4">Power Plants</td> </tr> <tr> <td>D</td> <td>E</td> <td>F</td> <td>G</td> </tr> <tr> <td>A</td> <td>3.5</td> <td>4.0</td> <td>2.5</td> <td>5.5</td> </tr> <tr> <td>B</td> <td>4.5</td> <td>3.7</td> <td>6.0</td> <td>4.7</td> </tr> <tr> <td>C</td> <td>4.2</td> <td>3.8</td> <td>5.2</td> <td>2.9</td> </tr></table>The company has to minimize the total cost of transportation to the power plants. The problem is An unbalanced transportation problem

  খ

  A balanced transportation problem

  গ

  An assignment problem

  ঘ

  None of the above
• In PERT analysis, the expected time to complete an activity is computed from the three time estimates : a most likely time (m), an optimistic time (a), and pessimistic time (b) using the expression
  ক

  $$\frac{{\left( {a + 4m + b} \right)}}{6}$$

  খ

  $$\frac{{\left( {4a + m + b} \right)}}{6}$$

  গ

  $$\frac{{\left( {a + m + 4b} \right)}}{6}$$

  ঘ

  $$\frac{{\left( {a + m + b} \right)}}{3}$$
• A system of two identical mine pumps were to connected in series has reliability 0.49. If the pumps were to be connected in parallel. the system reliability would be
  ক

  0.21

  খ

  0.6

  গ

  0.91

  ঘ

  0.95
• Four mines A, B, C and D are located along a road as shown with production in Mt per year 1, 2, 1 and 3 respectively. In order to handle total coal produced. the ideal distance of a coal washery along the road from the mine A in Km is<br><img src="/images/question-image/mining-engineering/mine-system-engineering/1682421164-M2-7-2-2.PNG" title="Mine System Engineering mcq question image" alt="Mine System Engineering mcq question image">
  ক

  4.01

  খ

  3.91

  গ

  3.81

  ঘ

  3.71
• In an opencast mine loading and transporting has been carried out by shovel dumper combination. There is only one shovel is in operation. Dumpers arrive at the rate of 10 dumpers per hour and it takes shovel on an average 5 minutes to load a dumper. Assume arrival is Poisson and service time is exponentially distributed, find the expected number of dumpers waiting to be load in the system.
  ক

  $$\frac{{100}}{{24}}$$

  খ

  $$\frac{{100}}{{12}}$$

  গ

  2

  ঘ

  4
• The failure data of equipment follows an exponential distribution. If the mean time between failure is 3000 hours. the reliability of the equipment for 750 hours is
  ক

  0.24

  খ

  0.36

  গ

  0.4

  ঘ

  0.78
• In the project network shown activity durations are given in months. If the activity can be crashed to expedite the project, which one would you crash and by how many months?<br><img src="/images/question-image/mining-engineering/mine-system-engineering/1682421105-M2-7-24-21.PNG" title="Mine System Engineering mcq question image" alt="Mine System Engineering mcq question image">
  ক

  C, 1

  খ

  C, 2

  গ

  D, 1

  ঘ

  E, 1
• Which one of the following operation research problems is solved by the Branch and Bound algorithm?
  ক

  Transportation problem

  খ

  Assignment problem

  গ

  Integer programming problem

  ঘ

  Queuing problem
• A mining project comprising of A, B and C activities is scheduled for 90 days at a cost of Rs. 1200 million. The manager of the project decides to reduce the time for completion of the project to 85 days. The decision was taken after 45 days, The minimum cost of the project in million rupees after crashing 5 days is<br><img src="/images/question-image/mining-engineering/mine-system-engineering/1682421056-M2-7-28-25.PNG" title="Mine System Engineering mcq question image" alt="Mine System Engineering mcq question image">
  ক

  100

  খ

  1300

  গ

  1475

  ঘ

  1825
• Workmen arrive at a mine workshop to receive tools for maintenance. The inter-arrival time of workmen at the service counter is exponentially distributed with an average time of 10 min. The service time at the counter is also distributed exponentially with a mean time of 6 min. The probability that there is a queue (more than one workman) at the service counter is,
  ক

  0.24

  খ

  0.36

  গ

  0.40

  ঘ

  0.60
• In industrial work study, work sampling is a technique of
  ক

  Method study

  খ

  Work measurement

  গ

  Time study

  ঘ

  Motion study
• A mining project is composed of five activities whose three time estimatesin months are given below:<br>
  ক

  <table class="table-style-1"> <tr> <td>Activity</td> <td colspan="3">Estimated duration (months)</td> </tr> <tr> <td></td> <td>Optimistic time</td> <td>Most likely time</td> <td>Permissible time</td> </tr> <tr> <td>1-2</td> <td>1</td> <td>1</td> <td>7</td> </tr> <tr> <td>1-3</td> <td>2</td> <td>5</td> <td>8</td> </tr> <tr> <td>2-4</td> <td>1</td> <td>1</td> <td>7</td> </tr> <tr> <td>3-4</td> <td>2</td> <td>5</td> <td>14</td> </tr> <tr> <td>4-5</td> <td>3</td> <td>6</td> <td>15</td> </tr></table>The standard deviation of the project length in months is 2

  খ

  3

  গ

  6

  ঘ

  9
• In an opencast mine loading and transporting has been carried out by shovel dumper combination. There is only one shovel is in operation. Dumpers arrive at the rate of 10 dumpers per hour and it takes shovel on an average 5 minutes to load a dumper. Assume arrival is Poisson and service time is exponentially distributed. What is expected waiting time of the dumper in the queue?
  ক

  $$\frac{5}{7}$$ hour

  খ

  $$\frac{5}{12}$$ hour

  গ

  $$\frac{12}{7}$$ hour

  ঘ

  $$\frac{1}{2}$$ hour
• There are 50 lemon trees in a reclaimed mine area. Each tree produces 800 lemons per year. For each additional tree planted in this area, considering all trees, the output number of fruits per tree drops by 10 lemons in a year. The number of trees that to be added to the existing reclaimed area in order to maximise the total number of lemons in the year is
  ক

  10

  খ

  15

  গ

  16

  ঘ

  26
• In an opencast mine loading and transporting has been carried out by shovel dumper combination. There is only one shovel is in operation. Dumpers arrive at the rate of 10 dumpers per hour and it takes shovel on an average 5 minutes to load a dumper. Assume arrival is Poisson and service time is exponentially distributed. Find the probability that the shovel is sitting idle.
  ক

  $$\frac{1}{6}$$

  খ

  $$\frac{1}{8}$$

  গ

  $$\frac{1}{4}$$

  ঘ

  $$\frac{1}{2}$$
• The feasible region of an LP problem is shown as given below. The maximum value of the objective function Z = 1600X₁ + 1200X₂ is<br><img src="/images/question-image/mining-engineering/mine-system-engineering/1682420971-M2-7-4-4.PNG" title="Mine System Engineering mcq question image" alt="Mine System Engineering mcq question image">
  ক

  20400

  খ

  20000

  গ

  19200

  ঘ

  16800
• A balanced transportation problem is characterised by
  ক

  Total supply exceeds total demand

  খ

  Total demand exceeds total supply

  গ

  Total demand is equal to total supply

  ঘ

  Total supply is either equal to or more than total demand
• The following project network is given with arrows as activities and the numbers by each arrow representing job durations in days. The network has two dummy activities D₁ and D₂. The minimum completion time of the project in days is<br><img src="/images/question-image/mining-engineering/mine-system-engineering/1682420921-M2-7-23-20.PNG" title="Mine System Engineering mcq question image" alt="Mine System Engineering mcq question image">
  ক

  13

  খ

  19

  গ

  75

  ঘ

  68
• ISO 9000 Quality Systems DO NOT contain
  ক

  Legal provisions

  খ

  Measurement

  গ

  Document control

  ঘ

  Standardization
• In an opencast mine loading and transporting has been carried out by shovel dumper combination. There is only one shovel is in operation. Dumpers arrive at the rate of 10 dumpers per hour and it takes shovel on an average 5 minutes to load a dumper. Assume arrival is Poisson and service time is exponentially distributed. Find the expected number of dumpers in the system.
  ক

  2

  খ

  3

  গ

  4

  ঘ

  5