Question for NALCO Mining Mate Grade III 2026 - Quiz / Questions / MCQ

Objective Questions

Latest NALCO Mining Mate Exam Question (Objective Questions), MCQ in English

Subjects : Technical Subject (Mining), Quantitative Aptitude, Reasoning, General Knowledge, English

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Technical Subject (Mining)

Question 1Single Answer

Bench height in opencast mining is primarily decided based on which factor?

A
Color of rock
B
Weather condition only
C
Type of explosives only
D
Safety of slope stability and equipment reach

Question 2Single Answer

Bench width in opencast mines mainly ensures what?

A
Vehicle parking only
B
Blast vibration control only
C
Water storage
D
Safe movement of HEMM and stability of working face

Question 3Single Answer

Bench slope angle is controlled mainly to ensure?

A
Stability against sliding and collapse
B
Geological mapping only
C
Aesthetic appearance
D
Faster drilling speed

Question 4Single Answer

Overburden in mining refers to?

A
Soil and rock covering the mineral deposit
B
Valuable ore
C
Explosives used in blasting
D
Water in mines

Question 5Single Answer

Stripping ratio is defined as?

A
Ore/coal ratio
B
Fuel/production ratio
C
Water/rock ratio
D
Overburden removed per unit of mineral extracted

Question 6Single Answer

Which machine is primarily used for overburden removal?

A
Pump
B
Generator
C
Excavator
D
Conveyor belt only

Question 7Single Answer

Dozer in opencast mining is mainly used for?

A
Drilling holes
B
Crushing ore
C
Blasting rocks
D
Pushing and leveling loose material

Question 8Single Answer

Dumpers are used in opencast mining for?

A
Drilling
B
Lighting
C
Surveying
D
Haulage of material

Question 9Single Answer

Drill machines in mining are used for?

A
Loading ore
B
Creating blast holes
C
Transporting coal
D
Crushing rocks

Question 10Single Answer

Bench height is mainly limited by?

A
Ore color
B
Moon phase
C
Worker preference
D
Machine size and safety regulations

Question 11Single Answer

A steep bench slope increases risk of?

A
Slope failure and landslide
B
Better production
C
Reduced drilling
D
Better lighting

Question 12Single Answer

Overburden dumps should be designed to ensure?

A
Maximum height only
B
Faster blasting
C
Minimum cost only
D
Stability and environmental safety

Question 13Single Answer

The main purpose of mechanization in opencast mining is?

A
Increase manual labor
B
Stop mining
C
Reduce production
D
Improve efficiency and safety

Question 14Single Answer

HEMM stands for?

A
Heavy Electrical Equipment Machine
B
High Energy Mining Method
C
Heavy Earth Moving Machinery
D
Hydraulic Excavation Mining Model

Question 15Single Answer

Which is NOT a HEMM?

A
Excavator
B
Hammer used manually Correct
C
Drill
D
Dumper

Question 16Single Answer

Safe distance from operating HEMM is important to prevent?

A
Fuel saving
B
Accidents and collisions
C
Faster loading
D
Noise reduction only

Question 17Single Answer

Bench face is also called?

A
Roof
B
Shaft wall
C
Floor only
D
Working slope

Question 18Single Answer

The angle of repose affects?

A
Color of ore
B
Drill speed
C
Stability of dumped material
D
Explosive strength

Question 19Single Answer

Overburden removal is also called?

A
Stripping
B
Mining beneficiation
C
Smelting
D
Refining

Question 20Single Answer

In opencast mining, loading is done by?

A
Excavator or shovel
B
Bulldozer only
C
Pump
D
Crusher

Question 21Single Answer

A shovel is mainly used for?

A
Drilling holes
B
Surveying land
C
Lighting mine
D
Loading material into dumpers

Question 22Single Answer

Bench formation helps in?

A
Increasing instability
B
Reducing ore quality
C
Safe and systematic extraction
D
Increasing water inflow

Question 23Single Answer

Benches are generally developed in?

A
Open pit mines
B
Underground mines
C
Sea mining only
D
River mining only

Question 24Single Answer

Overburden is usually placed in?

A
Waste dumps
B
Ore bins
C
Crushers
D
Drilling holes

Question 25Single Answer

Which factor affects stripping ratio most?

A
Weather only
B
Depth of ore body
C
Color of soil
D
Number of workers

Question 26Single Answer

Higher stripping ratio means?

A
Less waste removal
B
More waste removal per unit ore
C
No mining
D
Only underground mining

Question 27Single Answer

Dumpers operate mainly on?

A
Rail tracks
B
Water canals
C
Conveyor belts only
D
Haul roads

Question 28Single Answer

Haul roads in mines must be?

A
Narrow and steep
B
Filled with water
C
Well graded and maintained
D
Unplanned

Question 29Single Answer

Bench height too high may cause?

A
Better visibility
B
Lower production always
C
Equipment reach problem and instability
D
Reduced drilling cost

Question 30Single Answer

The main hazard near dumper operation is?

A
Radiation
B
Run-over accidents
C
Magnetic field
D
Gas leak only

Question 31Single Answer

Excavator bucket is attached to?

A
Boom and stick
B
Drill rod
C
Conveyor belt
D
Wagon

Question 32Single Answer

Dozer blade is used for?

A
Pushing material
B
Cutting ore only
C
Blasting
D
Crushing

Question 33Single Answer

Mining benches are separated by?

A
Rivers
B
Shafts
C
Roads only
D
Berms

Question 34Single Answer

Berms are provided mainly for?

A
Decoration
B
Safety and catchment of rolling material
C
Lighting
D
Drilling

Question 35Single Answer

The slope stability depends on?

A
Only blasting pattern
B
Only color
C
Only machine type
D
Rock strength and water content

Question 36Single Answer

Overburden dump failure can lead to?

A
Increased production
B
Landslide and environmental damage
C
Better ore quality
D
Faster drilling

Question 37Single Answer

Which machine is used for drilling blast holes?

A
Dumper
B
Drill machine
C
Dozer
D
Loader only

Question 38Single Answer

Blastholes are filled with?

A
Water only
B
Explosives
C
Ore
D
Soil only

Question 39Single Answer

Mechanization reduces?

A
Human effort and risk
B
Productivity
C
Machine usage
D
Ore availability

Question 40Single Answer

In opencast mining, face refers to?

A
Working front of excavation
B
Office building
C
Storage yard
D
Workshop

Question 41Single Answer

Face stability is important for?

A
Safety and continuous mining
B
Lighting
C
Painting
D
Transport only

Question 42Single Answer

Which is a hauling equipment?

A
Drill
B
Compressor
C
Dumper
D
Pump

Question 43Single Answer

Loading and hauling system improves?

A
Waste only
B
Fuel loss
C
Noise only
D
Production efficiency

Question 44Single Answer

Overburden handling includes?

A
Drilling only
B
Refining
C
Smelting
D
Excavation, transport, and dumping

Question 45Single Answer

The term “pit” in opencast mining means?

A
Underground tunnel
B
Factory building
C
Storage tank
D
Surface excavation area

Question 46Single Answer

Bench height is measured in?

A
Liters
B
Kilograms
C
Meters
D
Hours

Question 47Single Answer

Dump slope stability is increased by?

A
Overloading
B
Water saturation
C
Proper compaction
D
Random dumping

Question 48Single Answer

The main function of haul road is?

A
Drilling
B
Blasting
C
Transport of materials
D
Crushing

Question 49Single Answer

A safe mining practice includes?

A
Ignoring signals
B
Steep road usage
C
Overloading dumpers
D
Following SOPs for HEMM

Question 50Single Answer

SOP stands for?

A
Standard Operating Procedure
B
Standard Ore Production
C
System of Ore Processing
D
Safety Ore Plan

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Technical Subject (Mining)

Question 51Single Answer

Which improves dump stability?

A
Random dumping
B
Wet dumping only
C
Controlled layering
D
Steep slope

Question 52Single Answer

Excavator works best with?

A
Drill only
B
Pump
C
Dumper
D
Crusher

Question 53Single Answer

Mining safety depends heavily on?

A
Luck
B
Training and discipline
C
Ore type
D
Machine color

Question 54Single Answer

Overburden thickness affects?

A
Noise
B
Mining cost
C
Electricity only
D
Lighting

Question 55Single Answer

Which is a primary mining activity?

A
Refining
B
Marketing
C
Excavation
D
Packaging

Question 56Single Answer

Bench stability is improved by?

A
Overcutting
B
Proper slope design
C
Under drilling
D
No drainage

Question 57Single Answer

Water in mine benches can cause?

A
Stability improvement
B
Better ore quality
C
Faster drilling
D
Slope failure

Question 58Single Answer

Drainage in mines is important for?

A
Decoration
B
Painting
C
Lighting
D
Stability and safety

Question 59Single Answer

Mining layout refers to?

A
Arrangement of pits, benches, and roads
B
Machine color plan
C
Worker schedule
D
Office plan

Question 60Single Answer

A good mine layout ensures?

A
Confusion
B
Higher accidents
C
Efficient and safe production
D
Less production

Quantitative Aptitude

Question 61Single Answer

The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?

A
51:52
B
52:53
C
51:53
D
52:55

Question 62Single Answer

Which of the following numbers is irrational ?

A
√49
B
0.125
C
√2
D
22/7

Question 63Single Answer

356 x 936 – 356 x 836 = ?

A
35600
B
34500
C
9630
D
93600

Question 64Single Answer

Arrange in descending order: 5/8, 7/10, 3/4

A
3/4 > 7/10 > 5/8
B
7/10 > 3/4 > 5/8
C
3/4 > 5/8 > 7/10
D
5/8 > 7/10 > 3/4

Question 65Single Answer

What is (3^{^}{4} times 9^{^}{2}) ?

A
3⁶
B
3⁸
C
3¹⁰
D
9⁶

Question 66Single Answer

Passage :

information given below and answer the question that follow.
The result of an exam is given below. Out of 1000 students who appeared
(i) 658 failed in Physics
(ii) 166 failed in Physics and Chemistry
(iii) 372 failed in Chemistry, 434 failed in Physics and Maths
(iv) 590 failed in Maths, 126 failed in Maths & Chemistry
Find the number of people who failed in (assuming that none is passed in all subjects.

We have the following equations:
a+ b + c + d + e + f + g = 1000
a + b + d + e = 658, b + d = 166
b + d + c + f = 372
d + e = 434 as in the figure.
d + e + f + g = 590, d + f = 126. Find the values

Chemistry but not in Physics.

A
318
B
198
C
213
D
206

Question 67Single Answer

Passage :

Direction: information given below and answer the question that follow.
The result of an exam is given below. Out of 1000 students who appeared
(i) 658 failed in Physics
(ii) 166 failed in Physics and Chemistry
(iii) 372 failed in Chemistry, 434 failed in Physics and Maths
(iv) 590 failed in Maths, 126 failed in Maths & Chemistry
Find the number of people who failed in (assuming that none is passed in all subjects.

We have the following equations:
a+ b + c + d + e + f + g = 1000
a + b + d + e = 658, b + d = 166
b + d + c + f = 372
d + e = 434 as in the figure.
d + e + f + g = 590, d + f = 126. Find the values

Physics or Maths but not in Chemistry.

A
558
B
718
C
628
D
None of these

Question 68Single Answer

Passage :

For the next four question that follow:
In a city, three daily newspapers A, B, C are published, 42% read A; 51% read B; 68% read C; 30% read A and B; 28% read B and C; 36% read A and C; 8% do not read any of the three newspapers.

Let x% people read all the three newspapers.
Since 8% people do not read any newspapers.
(x – 24) + (x – 7) + (x + 4) + (30 – x) + (36 – x) + (28 – x) + x = 92
→ x + 98 – 31 = 92
→ x = 92 – 67 = 25

What is the percentage of persons who read all the three papers ?

A
20%
B
25%
C
30%
D
40%

Question 69Single Answer

Passage :

For the next four : question that follow :
In a city, three daily newspapers A, B, C are published, 42% read A; 51% read B; 68% read C; 30% read A and B; 28% read B and C; 36% read A and C; 8% do not read any of the three newspapers.

What is the percentage of persons who read only two papers?

A
19%
B
31%
C
44%
D
None of these

Question 70Single Answer

Passage :

What is the percentage of persons who read only one paper ?

A
38%
B
48%
C
51%
D
None of these

Reasoning

Question 71Single Answer

How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?

A
Two
B
Three
C
Five
D
Four
E
None of these

Question 72Single Answer

Team A has scored more goals than Team B
Team C has scored fewer goals than Team B
Team A has scored fewer goals than Team C .
If the first two statements are true, the third statement is

A
True
B
False
C
Uncertain
D
None

Question 73Single Answer

If it is possible to make only one meaningful word with the second, the third, the sixth and the eight letters of the word FRAGMENT using each only once, which of the following will be the third letter of that word ? If no such word can be formed, give ‘X’ as the answer and if more than one such word can be formed, give ‘Y’ as the answer.

Question 74Single Answer

How many such letters are there in the word ORIENTAL each of which is as far away from the beginning of the word as when they are arranged alphabetically?

A
None
B
One
C
Two
D
Three
E
More than three

Question 75Single Answer

How many such pairs of letters in the word CREDIT each of which has as many letters between them in the word as in the English alphabet?

A
None
B
One
C
Two
D
Three
E
More than three

Question 76Single Answer

Passage :

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z .

Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet ?

Question 77Single Answer

Passage :

Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If the third alphabet of each of the words is changed to the next alphabet in the English alphabetical series, which of the following will form a meaningful English word?

A
SUM
B
BIG
C
Both BIG and THE
D
FOR
E
Both FOR and BIG

Question 78Single Answer

Passage :

Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be second from the right ?

A
AND
B
FOR
C
THE
D
BIG
E
SUM

Question 79Single Answer

Passage :

Direction: The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If second alphabet in each of the words is changed to next alphabet in the English alphabetical order, how many words having two vowels (same or different vowels) will be formed ?

A
None
B
One
C
Two
D
Three
E
Four

Question 80Single Answer

Passage :

How many letters are there in the English alphabetical series between the second letter of the word which is second from the right and the second letter of the word which is second from the left of the given words?

A
Two
B
Five
C
Six
D
Nine
E
Three

General Knowledge

Question 81Single Answer

Sattriya dance form is famous in which of these states ?

A
Assam
B
Himachal Pradesh
C
Punjab
D
Tamil Nadu

Question 82Single Answer

"Who said, 'India was a parrot unto itself'?

A
Malik Muhammad Joyce
B
Raskhan
C
Rich Khusrow
D
Rich Hasan

Question 83Single Answer

Which is the national game of Bhutan ?

A
badminton
B
basketball
C
football
D
archery

Question 84Single Answer

When was the Constituent Assembly of India formed?

A
1946
B
1947
C
1948
D
1950

Question 85Single Answer

Who is known as the "Father of the Indian Renaissance" ?

A
Raja Ram Mohan Roy
B
Swami Vivekananda
C
Rabindranath Tagore
D
Mahatma Gandhi

Question 86Single Answer

What is the study of ethics primarily concerned with ?

A
Economic behavior
B
Human values and moral principles
C
Physical health
D
Political systems

Question 87Single Answer

Who is known as the "Missile Man of India"?

A
Dr. Homi J. Bhabha
B
Dr. Vikram Sarabhai
C
Dr. APJ Abdul Kalam
D
Dr. Satish Dhawan

Question 88Single Answer

Which is the longest river in India?

A
Yamuna
B
Ganges
C
Brahmaputra
D
Godavari

Question 89Single Answer

Who among the following was associated with Enlightenment philosophy?

A
Voltaire
B
Shakespeare
C
Erasmus
D
All of the above

Question 90Single Answer

What major defence-related development was highlighted on 1 May 2026 involving India and Italy?

A
Joint naval exercise in the Indian Ocean
B
Purchase of Rafale jets
C
Rajnath Singh-Italy Defence Pact
D
Signing of a nuclear agreement

English

Question 91Single Answer

I go to Madurai by —– Vaigai Express

A
a
B
an
C
some
D
the

Question 92Single Answer

Have the car stolen!

A
Steal the car
B
You should have the stolen car
C
Get someone to steal the car
D
They have stolen the car

Question 93Single Answer

The payment was collected by the hardworking salesman.

A
The hardworking salesman collected the payment.
B
the salesman who worked heard was able to collect the payment.
C
to collect the payment the salesman had to work hard.
D
The hardworking salesman was able to collect the payment.

Question 94Single Answer

I had to stop all my work to complete this project.

A
All other work had to be stopped to complete this project by me
B
For completing this project all other work must be stopped
C
For completing this project I had to stop all my work
D
To complete this project all other work had been stopped by me

Question 95Single Answer

They have published the names of all the successful candidates.

A
The candidates who have succeeded their names they had published.
B
The names of all the successful candidates have been published by them
C
The candidates who have succeeded their names have been published by them.
D
The names of all the successful candidate were published by them.

Question 96Single Answer

Passage :

Direction : Question below has two blanks, each blank indicting that some thing has been omitted. Choose the word for each blank which best fits the meaning of the sentence as a whole.

The Finance Department has ……………a centralized online databank system for all statutory government bodies to …………an eye on their assets and liabilities.

A
presented , stay
B
introduced , keep
C
announce , make
D
created , let
E
proclaimed , hold

Question 97Single Answer

Passage :

Direction : The five items in this section consists of a word or group of words followed by four words as (a), (b), (c) and (d). Select the word which is nearly opposite to the meaning of the original word or group of words and mark your response as (a), (b), (c) and (d), as the case may be, in your Answer Sheet.

Assets

A
liabilities
B
responsibilities
C
estates
D
profits

Question 98Single Answer

Passage :

Direction : In the question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Affidavit

A
Affirmation
B
Slander
C
Oath
D
Testimony

Question 99Single Answer

Passage :

Direction: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Hollow

A
Alveolate
B
Cleft
C
Cavernous
D
Solid

Question 100Single Answer

Passage :

Directions: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Cosset

A
Ignoreb
B
Close
C
Caress
D
Fondle

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Latest NALCO Mining Mate Exam Question (Objective Questions), MCQ in English

Technical Subject (Mining)

NALCO Mining Mate Exam Online Question Bank Package

Technical Subject (Mining)

Quantitative Aptitude

Reasoning

General Knowledge

English

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