Mining Engineering - MN 2018 GATE Paper with solution GATE Notes | EduRev

 Page 1


GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 1/3 
Q. 1 – Q. 5 carry one mark each. 
Q.1  “From where are they bringing their books? ________ bringing _______ books from 
_____.” 
 
The words that best fill the blanks in the above sentence are 
 
(A) Their, they’re, there 
(B) They’re, their, there 
(C) There, their, they’re 
(D) They’re, there, there 
 
 
Q.2  “A _________ investigation can sometimes yield new facts, but typically organized ones 
are more successful.” 
 
The word that best fills the blank in the above sentence is  
 
(A) meandering (B) timely (C) consistent (D) systematic 
 
 
Q.3  The area of a square is ?? . What is the area of the circle which has the diagonal of the 
square as its diameter? 
 
(A) ???? (B) ?? ?? 2
 
(C) 
1
4
?? ?? 2
 (D) 
1
2
???? 
 
 
Q.4  What would be the smallest natural number which when divided either by 20 or by 42 or 
by 76 leaves a remainder of 7 in each case? 
 
(A) 3047 (B) 6047 (C) 7987  (D) 63847 
 
 
Q.5  What is the missing number in the following sequence?  
 
2,  12,  60,  240,  720,  1440,  _____,  0 
 
(A) 2880 (B) 1440 (C) 720 (D) 0 
 
 
  
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GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 1/3 
Q. 1 – Q. 5 carry one mark each. 
Q.1  “From where are they bringing their books? ________ bringing _______ books from 
_____.” 
 
The words that best fill the blanks in the above sentence are 
 
(A) Their, they’re, there 
(B) They’re, their, there 
(C) There, their, they’re 
(D) They’re, there, there 
 
 
Q.2  “A _________ investigation can sometimes yield new facts, but typically organized ones 
are more successful.” 
 
The word that best fills the blank in the above sentence is  
 
(A) meandering (B) timely (C) consistent (D) systematic 
 
 
Q.3  The area of a square is ?? . What is the area of the circle which has the diagonal of the 
square as its diameter? 
 
(A) ???? (B) ?? ?? 2
 
(C) 
1
4
?? ?? 2
 (D) 
1
2
???? 
 
 
Q.4  What would be the smallest natural number which when divided either by 20 or by 42 or 
by 76 leaves a remainder of 7 in each case? 
 
(A) 3047 (B) 6047 (C) 7987  (D) 63847 
 
 
Q.5  What is the missing number in the following sequence?  
 
2,  12,  60,  240,  720,  1440,  _____,  0 
 
(A) 2880 (B) 1440 (C) 720 (D) 0 
 
 
  
GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 2/3 
Q. 6 – Q. 10 carry two marks each. 
 
Q.6  In appreciation of the social improvements completed in a town, a wealthy philanthropist 
decided to gift Rs 750 to each male senior citizen in the town and Rs 1000 to each female 
senior citizen. Altogether, there were 300 senior citizens eligible for this gift. However, 
only 8/9
th
 of the eligible men and 2/3
rd
 of the eligible women claimed the gift. How much 
money (in Rupees) did the philanthropist give away in total? 
 
(A) 1,50,000 (B) 2,00,000 
(C) 1,75,000 (D) 1,51,000 
 
 
Q.7  
If ?????? ? 0 and ?? -?? = 
1
?? , ?? -?? = 
1
?? , ?? -?? = 
1
?? , what is the value of the product ?????? ? 
 
(A) -1 
(B) 
1
?????? 
(C) 1 (D) ?????? 
 
Q.8  In a party, 60% of the invited guests are male and 40% are female. If 80% of the invited 
guests attended the party and if all the invited female guests attended, what would be the 
ratio of males to females among the attendees in the party? 
 
(A) 2:3 (B) 1:1 (C) 3:2 (D) 2:1 
 
 
Q.9  In the figure below, ??????? + ??????? is equal to ____________ . 
 
 
 
(A) ??????? - ??????? (B) ??????? + ??????? 
(C) ??????? + ??????? (D) ??????? + ??????? 
 
 
 
 
 
 
 
 
A 
B 
D 
E 
C 
F 
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GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 1/3 
Q. 1 – Q. 5 carry one mark each. 
Q.1  “From where are they bringing their books? ________ bringing _______ books from 
_____.” 
 
The words that best fill the blanks in the above sentence are 
 
(A) Their, they’re, there 
(B) They’re, their, there 
(C) There, their, they’re 
(D) They’re, there, there 
 
 
Q.2  “A _________ investigation can sometimes yield new facts, but typically organized ones 
are more successful.” 
 
The word that best fills the blank in the above sentence is  
 
(A) meandering (B) timely (C) consistent (D) systematic 
 
 
Q.3  The area of a square is ?? . What is the area of the circle which has the diagonal of the 
square as its diameter? 
 
(A) ???? (B) ?? ?? 2
 
(C) 
1
4
?? ?? 2
 (D) 
1
2
???? 
 
 
Q.4  What would be the smallest natural number which when divided either by 20 or by 42 or 
by 76 leaves a remainder of 7 in each case? 
 
(A) 3047 (B) 6047 (C) 7987  (D) 63847 
 
 
Q.5  What is the missing number in the following sequence?  
 
2,  12,  60,  240,  720,  1440,  _____,  0 
 
(A) 2880 (B) 1440 (C) 720 (D) 0 
 
 
  
GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 2/3 
Q. 6 – Q. 10 carry two marks each. 
 
Q.6  In appreciation of the social improvements completed in a town, a wealthy philanthropist 
decided to gift Rs 750 to each male senior citizen in the town and Rs 1000 to each female 
senior citizen. Altogether, there were 300 senior citizens eligible for this gift. However, 
only 8/9
th
 of the eligible men and 2/3
rd
 of the eligible women claimed the gift. How much 
money (in Rupees) did the philanthropist give away in total? 
 
(A) 1,50,000 (B) 2,00,000 
(C) 1,75,000 (D) 1,51,000 
 
 
Q.7  
If ?????? ? 0 and ?? -?? = 
1
?? , ?? -?? = 
1
?? , ?? -?? = 
1
?? , what is the value of the product ?????? ? 
 
(A) -1 
(B) 
1
?????? 
(C) 1 (D) ?????? 
 
Q.8  In a party, 60% of the invited guests are male and 40% are female. If 80% of the invited 
guests attended the party and if all the invited female guests attended, what would be the 
ratio of males to females among the attendees in the party? 
 
(A) 2:3 (B) 1:1 (C) 3:2 (D) 2:1 
 
 
Q.9  In the figure below, ??????? + ??????? is equal to ____________ . 
 
 
 
(A) ??????? - ??????? (B) ??????? + ??????? 
(C) ??????? + ??????? (D) ??????? + ??????? 
 
 
 
 
 
 
 
 
A 
B 
D 
E 
C 
F 
GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 3/3 
 
Q.10  A six sided unbiased die with four green faces and two red faces is rolled seven times. 
Which of the following combinations is the most likely outcome of the experiment? 
 
(A) Three green faces and four red faces. 
(B) Four green faces and three red faces. 
(C) Five green faces and two red faces. 
(D) Six green faces and one red face. 
 
 
END OF THE QUESTION PAPER 
 
Page 4


GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 1/3 
Q. 1 – Q. 5 carry one mark each. 
Q.1  “From where are they bringing their books? ________ bringing _______ books from 
_____.” 
 
The words that best fill the blanks in the above sentence are 
 
(A) Their, they’re, there 
(B) They’re, their, there 
(C) There, their, they’re 
(D) They’re, there, there 
 
 
Q.2  “A _________ investigation can sometimes yield new facts, but typically organized ones 
are more successful.” 
 
The word that best fills the blank in the above sentence is  
 
(A) meandering (B) timely (C) consistent (D) systematic 
 
 
Q.3  The area of a square is ?? . What is the area of the circle which has the diagonal of the 
square as its diameter? 
 
(A) ???? (B) ?? ?? 2
 
(C) 
1
4
?? ?? 2
 (D) 
1
2
???? 
 
 
Q.4  What would be the smallest natural number which when divided either by 20 or by 42 or 
by 76 leaves a remainder of 7 in each case? 
 
(A) 3047 (B) 6047 (C) 7987  (D) 63847 
 
 
Q.5  What is the missing number in the following sequence?  
 
2,  12,  60,  240,  720,  1440,  _____,  0 
 
(A) 2880 (B) 1440 (C) 720 (D) 0 
 
 
  
GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 2/3 
Q. 6 – Q. 10 carry two marks each. 
 
Q.6  In appreciation of the social improvements completed in a town, a wealthy philanthropist 
decided to gift Rs 750 to each male senior citizen in the town and Rs 1000 to each female 
senior citizen. Altogether, there were 300 senior citizens eligible for this gift. However, 
only 8/9
th
 of the eligible men and 2/3
rd
 of the eligible women claimed the gift. How much 
money (in Rupees) did the philanthropist give away in total? 
 
(A) 1,50,000 (B) 2,00,000 
(C) 1,75,000 (D) 1,51,000 
 
 
Q.7  
If ?????? ? 0 and ?? -?? = 
1
?? , ?? -?? = 
1
?? , ?? -?? = 
1
?? , what is the value of the product ?????? ? 
 
(A) -1 
(B) 
1
?????? 
(C) 1 (D) ?????? 
 
Q.8  In a party, 60% of the invited guests are male and 40% are female. If 80% of the invited 
guests attended the party and if all the invited female guests attended, what would be the 
ratio of males to females among the attendees in the party? 
 
(A) 2:3 (B) 1:1 (C) 3:2 (D) 2:1 
 
 
Q.9  In the figure below, ??????? + ??????? is equal to ____________ . 
 
 
 
(A) ??????? - ??????? (B) ??????? + ??????? 
(C) ??????? + ??????? (D) ??????? + ??????? 
 
 
 
 
 
 
 
 
A 
B 
D 
E 
C 
F 
GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 3/3 
 
Q.10  A six sided unbiased die with four green faces and two red faces is rolled seven times. 
Which of the following combinations is the most likely outcome of the experiment? 
 
(A) Three green faces and four red faces. 
(B) Four green faces and three red faces. 
(C) Five green faces and two red faces. 
(D) Six green faces and one red face. 
 
 
END OF THE QUESTION PAPER 
 
GATE 2018   Mining Engineering 
MN 1/11 
  Q. 1 – Q. 25 carry one mark each. 
Q.1  
If
cos sin
sin cos
X
??
??
??
?
??
?
??
, then
T
XX is 
(A) 
01
10
??
??
??
  (B) 
10
01
???
??
?
??
 (C) 
10
01
??
??
??
 (D) 
01
10
? ??
??
?
??
 
 
 
Q.2  The values of x satisfying the following condition are 
43
0
36
x
x
?
?
?
 
(A) 6, 4 (B) 4, 9 (C) 5, 6 (D) 3,7 
 
 
Q.3  An azimuth of 330° corresponds to a quadrant bearing of 
(A) W60
o
N (B) N30
o
W (C) S30
o
W (D) S30
o
E 
 
 
Q.4  Tri-cone drill bit is a type of 
(A) cross bit (B) button bit 
(C) rotary roller bit (D) button drag bit 
 
 
Q.5  Exposure of weak roof in junctions of a development district in a coal mine can be 
decreased by 
(A) increasing dimension of panel barrier 
(B) stitching side walls 
(C) increasing support density at junctions 
(D) staggering the junctions 
 
 
Q.6  The property that CANNOT be determined from uniaxial compressive strength test of a 
rock sample fitted with strain gauges is 
(A) cohesion (B) Poisson’s ratio 
(C) modulus of elasticity (D) dilation 
 
 
Page 5


GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 1/3 
Q. 1 – Q. 5 carry one mark each. 
Q.1  “From where are they bringing their books? ________ bringing _______ books from 
_____.” 
 
The words that best fill the blanks in the above sentence are 
 
(A) Their, they’re, there 
(B) They’re, their, there 
(C) There, their, they’re 
(D) They’re, there, there 
 
 
Q.2  “A _________ investigation can sometimes yield new facts, but typically organized ones 
are more successful.” 
 
The word that best fills the blank in the above sentence is  
 
(A) meandering (B) timely (C) consistent (D) systematic 
 
 
Q.3  The area of a square is ?? . What is the area of the circle which has the diagonal of the 
square as its diameter? 
 
(A) ???? (B) ?? ?? 2
 
(C) 
1
4
?? ?? 2
 (D) 
1
2
???? 
 
 
Q.4  What would be the smallest natural number which when divided either by 20 or by 42 or 
by 76 leaves a remainder of 7 in each case? 
 
(A) 3047 (B) 6047 (C) 7987  (D) 63847 
 
 
Q.5  What is the missing number in the following sequence?  
 
2,  12,  60,  240,  720,  1440,  _____,  0 
 
(A) 2880 (B) 1440 (C) 720 (D) 0 
 
 
  
GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 2/3 
Q. 6 – Q. 10 carry two marks each. 
 
Q.6  In appreciation of the social improvements completed in a town, a wealthy philanthropist 
decided to gift Rs 750 to each male senior citizen in the town and Rs 1000 to each female 
senior citizen. Altogether, there were 300 senior citizens eligible for this gift. However, 
only 8/9
th
 of the eligible men and 2/3
rd
 of the eligible women claimed the gift. How much 
money (in Rupees) did the philanthropist give away in total? 
 
(A) 1,50,000 (B) 2,00,000 
(C) 1,75,000 (D) 1,51,000 
 
 
Q.7  
If ?????? ? 0 and ?? -?? = 
1
?? , ?? -?? = 
1
?? , ?? -?? = 
1
?? , what is the value of the product ?????? ? 
 
(A) -1 
(B) 
1
?????? 
(C) 1 (D) ?????? 
 
Q.8  In a party, 60% of the invited guests are male and 40% are female. If 80% of the invited 
guests attended the party and if all the invited female guests attended, what would be the 
ratio of males to females among the attendees in the party? 
 
(A) 2:3 (B) 1:1 (C) 3:2 (D) 2:1 
 
 
Q.9  In the figure below, ??????? + ??????? is equal to ____________ . 
 
 
 
(A) ??????? - ??????? (B) ??????? + ??????? 
(C) ??????? + ??????? (D) ??????? + ??????? 
 
 
 
 
 
 
 
 
A 
B 
D 
E 
C 
F 
GATE 2018                                                                                            General Aptitude (GA) Set-3  
GA 3/3 
 
Q.10  A six sided unbiased die with four green faces and two red faces is rolled seven times. 
Which of the following combinations is the most likely outcome of the experiment? 
 
(A) Three green faces and four red faces. 
(B) Four green faces and three red faces. 
(C) Five green faces and two red faces. 
(D) Six green faces and one red face. 
 
 
END OF THE QUESTION PAPER 
 
GATE 2018   Mining Engineering 
MN 1/11 
  Q. 1 – Q. 25 carry one mark each. 
Q.1  
If
cos sin
sin cos
X
??
??
??
?
??
?
??
, then
T
XX is 
(A) 
01
10
??
??
??
  (B) 
10
01
???
??
?
??
 (C) 
10
01
??
??
??
 (D) 
01
10
? ??
??
?
??
 
 
 
Q.2  The values of x satisfying the following condition are 
43
0
36
x
x
?
?
?
 
(A) 6, 4 (B) 4, 9 (C) 5, 6 (D) 3,7 
 
 
Q.3  An azimuth of 330° corresponds to a quadrant bearing of 
(A) W60
o
N (B) N30
o
W (C) S30
o
W (D) S30
o
E 
 
 
Q.4  Tri-cone drill bit is a type of 
(A) cross bit (B) button bit 
(C) rotary roller bit (D) button drag bit 
 
 
Q.5  Exposure of weak roof in junctions of a development district in a coal mine can be 
decreased by 
(A) increasing dimension of panel barrier 
(B) stitching side walls 
(C) increasing support density at junctions 
(D) staggering the junctions 
 
 
Q.6  The property that CANNOT be determined from uniaxial compressive strength test of a 
rock sample fitted with strain gauges is 
(A) cohesion (B) Poisson’s ratio 
(C) modulus of elasticity (D) dilation 
 
 
GATE 2018   Mining Engineering 
MN 2/11 
Q.7  The radial stress concentration around a long circular tunnel excavated in rock is given by 
the curve 
 
(A) m (B) n (C)  o (D)  p 
 
 
Q.8  Ward-Leonard system is provided in the winding system in order to restrict 
(A) over-winding of the cage 
(B) deceleration of the cage 
(C) acceleration of the cage 
(D) over-speeding of the cage 
 
 
Q.9  The equipment NOT related to extraction of coal from longwall face operation is 
(A) AFC (B) road header (C) powered support (D) DERD shearer 
 
 
Q.10  The correct figure depicting the extraction of contiguous seams in bord and pillar working 
is indicated by 
 
 
 
Q.11  The significance of ‘potentially explosive mixture’ in Coward flammability diagram is - 
(A) leakage of fresh air may lead to explosive condition for the mixture 
(B) leakage of firedamp may lead to explosive condition for the mixture 
(C) increase in the ambient temperature may lead to explosive condition for the mixture 
(D) introduction of a source of ignition may result in explosion of the mixture 
 
 
/ ra
? ? m
? ? n
? ? p
? ? o
0
p
r - distance from the center 
Stress concentration
0
p
a
- in-situ stress
0
p
8m
10m
(A) (B)
(C) (D)
8m
pillar
10m
parting
parting
pillar