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This mock test of Mining Engineering - MN 2016 GATE Paper (Practice Test) for GATE helps you for every GATE entrance exam.
This contains 65 Multiple Choice Questions for GATE Mining Engineering - MN 2016 GATE Paper (Practice Test) (mcq) to study with solutions a complete question bank.
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QUESTION: 1

**Q. 1 – Q. 5 carry one mark each.**

**Q. The volume of a sphere of diameter 1 unit is ________ than the volume of a cube of side 1 unit.**

Solution:

QUESTION: 2

The unruly crowd demanded that the accused be _____________ without trial.

Solution:

QUESTION: 3

Choose the statement(s) where the underlined word is used correctly:

(i) A "__prone"__ is a dried plum.

(ii) He was lying "__prone"__ on the floor.

(iii) People who eat a lot of fat are "__prone"__ to heart disease.

Solution:

QUESTION: 4

Fact: If it rains, then the field is wet.

Read the following statements:

(i) It rains

(ii) The field is not wet

(iii) The field is wet

(iv) It did not rain

Which one of the options given below is NOT logically possible, based on the given fact?

Solution:

QUESTION: 5

The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.

Solution:

QUESTION: 6

**Q. 6 – Q. 10 carry two marks each.**

**Q.**

Students taking an exam are divided into two groups, P and Q such that each group has the same

number of students. The performance of each of the students in a test was evaluated out of 200

marks. It was observed that the mean of group P was 105, while that of group Q was 85. The

standard deviation of group P was 25, while that of group Q was 5. Assuming that the marks were

distributed on a normal distribution, which of the following statements will have the highest

probability of being TRUE?

Solution:

QUESTION: 7

A smart city integrates all modes of transport, uses clean energy and promotes sustainable use of

resources. It also uses technology to ensure safety and security of the city, something which critics

argue, will lead to a surveillance state.

Which of the following can be logically inferred from the above paragraph?

(i) All smart cities encourage the formation of surveillance states.

(ii) Surveillance is an integral part of a smart city.

(iii) Sustainability and surveillance go hand in hand in a smart city.

(iv) There is a perception that smart cities promote surveillance.

Solution:

QUESTION: 8

Find the missing sequence in the letter series.

B, FH, LNP, _ _ _ _.

Solution:

QUESTION: 9

The binary operation ? is defined as a ? b = ab+(a+b), where a and b are any two real numbers.

The value of the identity element of this operation, defined as the number x such that a ? x = a, for

any a, is

Solution:

QUESTION: 10

Which of the following curves represents the function

Solution:

QUESTION: 11

**Q. 1 – Q. 25 carry one mark each**

**Q.**

The differential of the equation, x^{2} + y^{2} =1, with respect to x is

Solution:

QUESTION: 12

If [A][B] = [I ] then

Solution:

QUESTION: 13

X^{4} +C is the general integral of

Solution:

QUESTION: 14

Sinh (x) is

Solution:

QUESTION: 15

Identify the correct statement.

NONEL is used for surface connection of the blast holes in order to

Solution:

QUESTION: 16

Identify the pattern of surface blasting given in the figure. The values of delay time, in ms,

are given against each blasthole.

Solution:

QUESTION: 17

Identify the initiation sequence which is NOT possible for surface blasting.

Solution:

QUESTION: 18

Parallel holes at right angles to the face with some holes uncharged are associated with the following shot hole pattern

Solution:

QUESTION: 19

Bieniawski’s Rock Mass Rating considers the parameters: RQD, spacing of joints, condition of

joints, ground water condition, and

Solution:

QUESTION: 20

The unruly crowd demanded that the accused be without trial.

Solution:

QUESTION: 21

Identify the uniaxial compressive loading condition from the following four Mohr circles.

Solution:

QUESTION: 22

Out of the given stress-strain curves, identify the rock type that is most prone to rock burst.

Solution:

*Answer can only contain numeric values

QUESTION: 23

A longwall panel of width 120 m is extracted at a depth of 200 m. Critical subsidence is reached

when the panel length becomes 150 m. If the seam were to be worked at a depth of 300 m, critical

subsidence would be observed at a panel length, in m, of _______________

**Important : you should answer only the numeric value**

Solution:

QUESTION: 24

The support system followed along the goaf edge in a depillaring panel is

Solution:

QUESTION: 25

Which one of the following ropes CANNOT be an effective cable bolt?

Solution:

QUESTION: 26

In metalliferous mines, the sublevel interval does NOT depend on

Solution:

QUESTION: 27

Jack hammer does NOT contain

Solution:

QUESTION: 28

At the inlet of a mine roadway, the dry and wet bulb temperatures of air are 38^{0}Cand 29^{0}C,

respectively. At the outlet, the corresponding temperatures are 32^{0}C and 29^{0}C, respectively. The

process of heat transfer in the airway is described as

Solution:

QUESTION: 29

Underground coal mines are in principle ventilated by exhausting system, so that

Solution:

QUESTION: 30

Identify the WRONG statement.

Pit bottom air lock

Solution:

QUESTION: 31

Identify the WRONG statement.

The ‘temperature inversion’ of the atmosphere in surface mines aggravates the problem of

Solution:

QUESTION: 32

In a CO self rescuer, the purpose of the calcium bromide and lithium chloride mixture is to

Solution:

QUESTION: 33

IRR of a project is the discount rate at which

Solution:

QUESTION: 34

For the critical path network shown, the slack for the activity ‘b’, in months, is

Solution:

QUESTION: 35

The three axes comprising the numerical codification of resources, as per the UNFC, are

Solution:

*Answer can only contain numeric values

QUESTION: 36

**Q. 36 – Q. 65 carry two marks each**

**Q.**

Equations of two planes are z = 4 and z = 4 + 3x . The included angle between the two planes in

degrees, is ____________

Solution:

*Answer can only contain numeric values

QUESTION: 37

A force acts on a particle. The particle is moved from point A to point B, where

the position vectors of respectively. The work done is

____________

**(Important : you should answer only the numeric value)**

Solution:

*Answer can only contain numeric values

QUESTION: 38

The value of x in the simultaneous equations is ______________

3x+y+2z=3

2x-3y-z=-3

x+2y+z=4

**(Important : you should answer only the numeric value)**

Solution:

*Answer can only contain numeric values

QUESTION: 39

Two persons P and Q toss an unbiased coin alternately on an understanding that whoever gets the

head first wins. If P starts the game, then the probability of P winning the game is ____________

Solution:

*Answer can only contain numeric values

QUESTION: 40

Data pertaining to a surface bench blast is given below:

The powder factor of the blast, in kg/tonne, is _______

Solution:

QUESTION: 41

Match the following for a typical slurry explosive

Solution:

*Answer can only contain numeric values

QUESTION: 42

A 10 m thick coal block is excavated by a contractor at a cost of Rs. 40 per m^{3} . The excavated

area, measured in the mine plan, is found to be50 cm^{2} . If the mine plan has been drawn to a scale

of 1:1000, the payment to be made to the contractor, in lakhs of Rs., is _______

**(Important : you should answer only the numeric value)**

Solution:

*Answer can only contain numeric values

QUESTION: 43

Two vertical shafts of a mine have the following parameters

The gradient of the drift connecting the shaft bottoms, in degrees, is_____

Solution:

QUESTION: 44

For a station ‘A’ on the Earth’s surface, as shown in the figure, match the following

Solution:

QUESTION: 45

Match the following for the prismatic compass shown below

Solution:

*Answer can only contain numeric values

QUESTION: 46

A ladder placed against a frictionless wall at an inclination of 60^{0 }with horizontal, is in a state of

limiting equilibrium. The ladder has a length of 13 m and a uniform mass of 4 kg/m. The

coefficient of friction between the ladder and the floor is ______

Solution:

*Answer can only contain numeric values

QUESTION: 47

A cubical rock sample is enclosed between two fixed hard steel plates as shown in the figure below.

The modulus of elasticity and Poisson’s ratio of the rock are 2 GPa and 0.25, respectively. If the

rock is subjected to the stresses as shown in the figure, the strain in x-direction, in mm/m, is

_______.

Solution:

*Answer can only contain numeric values

QUESTION: 48

In a hydrostatic stress field, point A is in the middle of two circular openings as shown in the

figure. The radial stress, in MPa, at point A is _________.

Solution:

QUESTION: 49

Curves (a) and (b) represent the stress distributions along the length of a ‘full column grouted bolt’

shown in the figure. Curves (a) and (b) are

Solution:

QUESTION: 50

Match the following mechanical properties with the formulae

Solution:

*Answer can only contain numeric values

QUESTION: 51

A skip of 10 tonne capacity hoists ore through a 1000 m deep shaft at a speed of 20 m/s. The skip

accelerates and decelerates at 2.0 m/s2 . The loading and unloading times for the skip are 2.5 min

and 1.5 min, respectively. The maximum hourly capacity of the hoisting system, in tonnes, is

_____________

Solution:

QUESTION: 52

Match the following:

Solution:

*Answer can only contain numeric values

QUESTION: 53

In the gear assembly shown, the rpm of Gear 1 is 600. The number of teeth in Gear 1, Gear 2, Gear

3, Gear 4, Gear 5 and Gear 6 is 30, 45, 15, 20, 10 and 30, respectively. The rpm of Gear 6 is

______

**(Important : you should answer only the numeric value)**

Solution:

*Answer can only contain numeric values

QUESTION: 54

An operating surface mine is proposed to be deepened by 30 m as shown in the figure. If the

density of the ore is 2.4 tonne m^{3} , the incremental stripping ratio for the deepening, in

m^{3} tonne , is ______.

Solution:

*Answer can only contain numeric values

QUESTION: 55

From an openpit sump, mine water is lifted using a 250 m long straight pipeline laid along a

gradient of 34^{0} . The pumping rate is 500 gpm (1 gallon = 3.8 litres). Additional head loss due to

pipe friction can be considered to be 10% of head lifted. At an overall efficiency of 70%, the

electric power consumed by the pump, in kW, is __________.

Solution:

QUESTION: 56

With reference to Coward diagram, match the following in the context of explosibility of a mixture

of ‘normal air’ and ‘methane’.

Solution:

*Answer can only contain numeric values

QUESTION: 57

A U-tube manometer is subjected to differential pressure as shown. If specific gravity of kerosene

is 0.8, the value of (P_{1} - P_{2} ), in Pa, is_________.

Solution:

*Answer can only contain numeric values

QUESTION: 58

An air stream having an enthalpy of 100 kJ/kgda, is flowing at 20 kgda/s. It is cooled by water at

temperature 10^{0}C circulating in a cooling coil at a flow rate of 10.0 l/s. If the return temperature of

water is 20^{0}C , the enthalpy of the cooled air, in kJ/kgda, is ___________.

(Specific heat of water: 4.18 kJ kg ^{0}C ; kgda: kg of dry air).

Solution:

*Answer can only contain numeric values

QUESTION: 59

The static pressure characteristic of a mine fan is as shown. If the mine resistance is 0.3 Ns^{2/} m^{8} ,

the quantity generated by the fan, in m^{3}/s , is _______.

Solution:

QUESTION: 60

In the context of ventilation plan symbols, match the following:

Solution:

*Answer can only contain numeric values

QUESTION: 61

A mill concentrate, having 25% copper, is proposed to be sold at Rs. 1,25,000 per tonne. The grade

of the deposit is 0.8% Cu and the overall cost of mining and milling is Rs. 2,520 per tonne of ore.

At a recovery of 75%, the estimated profit, in Rs./tonne of concentrate, is __________

Solution:

*Answer can only contain numeric values

QUESTION: 62

Copper grade distribution in an ore body has the probability density function, f (x) , as shown in

the figure. The average grade of the deposit, in % Cu, is ______.

Solution:

*Answer can only contain numeric values

QUESTION: 63

The semivariogram shown belongs to a bauxite deposit. The expected difference in the Al_{2}O_{3} (%)

values between two boreholes separated by a distance of 200 m is _______.

**(Important : you should answer only the numeric value)**

Solution:

QUESTION: 64

A surface mine has 15 identical dumpers and two shovels. For shovel 1, the dumper cycle time is

30 min and the shovel loading time is 5 min. For shovel 2, the dumper cycle time is 32 min and the

shovel loading time is 4.0 min. Based on match factor optimisation (equitable match factor), the

ideal allocation of dumpers to shovel 1 and shovel 2, respectively is

Solution:

*Answer can only contain numeric values

QUESTION: 65

The composited grade value, in %, between the RLs 10 m to 20 m for the following borehole

configuration is ________________

**(Important : you should answer only the numeric value)**

Solution:

### Mining Engineering (MN) 2016 GATE Paper with solution

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