Mining Engineering Gate 2023 Questions with Answer

Ques 14 GATE 2023


Consider a spherical globe rotating about an axis passing through its poles. There are three points P, Q, and R situated respectively on the equator, the north pole, and midway between the equator and the north pole in the northern hemisphere. Let P, Q, and R move with speeds vP, vQ, and vR, respectively.
Which one of the following options is CORRECT?

A

vP<vR<vQ

B

vP<vQ<vR

C

vP>vR>vQ

D

vP=vR≠ vQ



Ques 15 GATE 2023


The line ran the page, right through the centre, and divided the page into two.

A

across

B

of

C

between

D

about



Ques 16 GATE 2023


Kind : ________ : : Often : Seldom
(By word meaning)

A

Cruel

B

Variety

C

Type

D

Kindred



Ques 17 GATE 2023


Consider a circle with its centre at the origin (O), as shown. Two operations are allowed on the circle.
Operation 1: Scale independently along the x and y axes.
Operation 2: Rotation in any direction about the origin.
Which figure among the options can be achieved through a combination of these two operations on the given circle?

A

B

C

D



Ques 18 GATE 2023


Elvesland is a country that has peculiar beliefs and practices. They express almost all their emotions by gifting flowers. For instance, if anyone gifts a white flower to someone, then it is always taken to be a declaration of one's love for that person. In a similar manner, the gifting of a yellow flower to someone often means that one is angry with that person.
Based only on the information provided above, which one of the following sets of statement(s) can be logically inferred with certainty?
(i) In Elvesland, one always declares one's love by gifting a white flower.
(ii) In Elvesland, all emotions are declared by gifting flowers.
(iii) In Elvesland, sometimes one expresses one's anger by gifting a flower that is not yellow.
(iv) In Elvesland, sometimes one expresses one's love by gifting a white flower.

A

only (ii)

B

(i), (ii) and (iii)

C

(i), (iii) and (iv)

D

only (iv)



Ques 19 GATE 2023


Based only on the following passage, which one of the options can be inferred with certainty?
When the congregation sang together, Apenyo would also join, though her little screams were not quite audible because of the group singing. But whenever there was a special number, trouble would begin; Apenyo would try singing along, much to the embarrassment of her mother. After two or three such mortifying Sunday evenings, the mother stopped going to church altogether until Apenyo became older and learnt to behave. At home too, Apenyo never kept quiet; she hummed or made up silly songs to sing by herself, which annoyed her mother at times but most often made her become pensive. She was by now convinced that her daughter had inherited her love of singing from her father who had died unexpectedly away from home. [Excerpt from These Hills Called Home by Temsula Ao]

A

The mother was embarrassed about her daughter's singing at home.

B

The mother's feelings about her daughter's singing at home were only of annoyance.

C

The mother was not sure if Apenyo had inherited her love of singing from her father.

D

When Apenyo hummed at home, her mother tended to become thoughtful.



Ques 20 GATE 2023


The fault pattern shown in the figure is a case of _______.

A

Normal fault.

B

Reverse fault.

C

Strike slip fault.

D

Oblique slip fault.



Ques 21 GATE 2023


In project scheduling techniques, the CORRECT statement is

A

Both CPM and PERT are deterministic.

B

Both CPM and PERT are probabilistic.

C

CPM is deterministic and PERT is probabilistic.

D

CPM is probabilistic and PERT is deterministic.



Ques 22 GATE 2023


A workshop has four tasks and equal number of machines to perform the tasks. Each of the machines can perform only one of the four tasks. The estimated cost at each of the machines to complete each task is given in table

The total cost of optimal assignment is [rounded off to 1 decimal place]


210.0 is the correct answer.


Ques 23 GATE 2023


The blast pattern of a coal face shown in the figure Front view Top view Side view represents _______.

A

burn cut.

B

pyramid cut.

C

wedge cut.

D

drag cut.



Ques 24 GATE 2023


A shear stress t acts tangentially to the upper surface of a block and causes a small deformation Δw as shown. The shear strain is calculated by

A

Δw/w

B

Δw/h

C

2Δw/w

D

2Δw/h



Ques 25 GATE 2023


Axial stress versus axial strain curves for two test results of a porous rock from triaxial undrained compression tests are shown in the figure. The pore pressure for the curve B can be the best explained by

A

U<0

B

U=0

C

U>10

D

0<U<10



Ques 26 GATE 2023


The reaction products of calcium hydroxide with acidic ferruginous mine water are

A

FeO, Ca+ and H+

B

FeO, CaO and H2O

C

FeH3, Ca3+ and OH-

D

Fe(OH)3, Ca2+ and H₂O



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