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TATA STEEL JET-2022 MINING SAMPLE PAPER

TATA STEEL JUNIOR ENGINEER TRAINEE EXAM 2022 SAMPLE PAPER (MINING)

Mining

1. What is RL

a) Reference level c) Referral level

b) Reduced Level d) None of the above

2. What is the maximum permissible haul road gradient?

a) 1 in 14 c) 1 in 16

b) 1 in 5 d) 1 in 7

3. Natural errors in measurements are caused by

a) Temperature c) Gravity

b) Humidity d) All of these

4. Angular measurements are done with

a) Compass c) Dumpy Level

b) Theodolite d) a & b

5. What is AFDSS

a) Auto fire diode & suspension system c) Auto fire deal & suppression system

b) Auto fire detection & suppression system d) Auto fire detection & solution system

6. How to increase tire life

a) Minimize of the reverse of dumper c) Better Haul road condition

b) Slow speed of dumper d) All of these

7. What is the position of shovel boom & bucket while propelling

a) Boom align with the direction of travel & bucket

0.5 mt above the ground

c) Boom align with the direction of travel & bucket

2.5 mt above the ground

b) Boom align with the direction of travel & bucket

1.5 mt above the ground

d) None of the above.

8. What is the parking position of the shovel at the shift end?

a) All hyd. cylinders are in the closed position with

bucket rest in the ground

c) Only bucket rest in the ground

b) All hyd. cylinders are in the open position d) None of the above.

9. What is the minimum width of Haul Road in o/c mine as per by-laws?

a) not less than 3times the width of dumper plying

in mine plus 5 m

c) not less than 4 times the width of dumper plying in

mine

b) not less than 5 times the width of dumper plying

in mine

d) None of these

10. What is the permissible limit of the gradient of Haul Road in O/c Mine?

a) 0.0527777777777778 c) 0.0513888888888889

b) 0.05 d) 0.0541666666666667

11. What is Backfill in mines?

a) water is used to fill up after the removal of

minerals in mines

c) Both a & b

b) Any material that is put back in place of the

extracted ore to provide ground support.

d) None of the above

12. What do you mean by Barren in mines?

a) Vein material containing minerals of value, c) Both a & b

b) Vein material containing no minerals of value d) None of the above

JET-2022 Mining Sample Paper

13. Safety precaution while driving

a) Maintain a Safe speed limit c) Use seat belt

b) Follow traffic Rule d) All of the above

14. Dump body hoist alarm of dumper indicates

a) Wheel Choke is engaged c) Wheel Jack in lifted condition

b) Dump body is lifted condition d) All of these

15. Which does the Inspector give an order in writing to supply cool water to the employee of opencast working?

a) Where 50 or more persons are employed c) Where 100 or more persons are employed

b) Where 75 or more persons are employed d) Where 150 or more persons are employed

16. Which document is required for contractors to proceed with work as per TATA guideline

a) Workbook c) Work card

b) Work permit d) Any of these

17. Rotary drill affects

a) penetration rate c) pull-down weight

b) rotation speed d) All of these

18. Drill Pattern mostly used

a) Diagonal pattern c) Square pattern

b) Line pattern d) All of the above

19. The disadvantage of inclined drill in blast holes

a) Difficult to drill c) Risk to borehole collapse

b) Difficult in charging and loading explosives d) All of the above

20. Drilling job in Mines directed by

a) Engineer c) Asst. Manager

b) overman d) The Mining Sirdar

21. The wide stall method of working is

a) A method of extraction of the pillar by widening

of galleries

c) Leaving one remnant pillar

b) By widening the gallery with/without stowing d) All of the above

22. Working in a mine where work has been temporarily stopped is called

a) Panel c) District panel

b) Disused working d) Sump.

23. In depillaring operation of contiguous seam

a) Both the lower seam and the upper seam will be

worked together

c) The upper seam can be extracted earlier

b) The lower seam can be extracted earlier

d) Bothe seam can be extracted simultaneously with

the paper seam depillared one pillar in advance, if

the seam inclination is within 30 degrees.

24. Limitation of longwall faces-not suitable for

a) Geologically disturbed area c) Ultra-thick seam

b) Thin seam d) All of the above

25. What shall be the representative factor of the scale of offset plan of depillaring section handed over to Overman?

a) 1:500 c) 1:2000

b) 1:1000 d) 1200:1

JET-2022 Mining Sample Paper

26. What shall be the length of scale on every plan & section?

a) At least 25 cm c) Above 25 Cm

b) Below 25 Cm d) None of these

27. Plan table surveying uses the methodology of

a) triangulation c) ranging

b) contouring d) traversing

28. A plumbing fork is used to ___________ the plane table

a) focus c) orient

b) center d) level

29. What is the minimum clearance between the diameter of the explosive & diameter of the shot hole?

a) 6 millimetres c) 3 millimetres

b) 5 millimetres d) None of these

30. What is the pre-start check of the driller?

a) Straightness of the drill rod c) free rotation of chuck & direction of drill m/c

b) Straightness of the drill rod d) All of the above

31. What are different drilling M/c currently used in underground mines?

a) Electric Drill m/c c) Universal Drill M/c.

b) Pneumatic drill m/c d) All of the above

32. What shall be the distance between two flank boreholes

a) Not less than 3 meter c) Not less than 1.5 meter

b) Not less than 5 meter d) None of theses

33. A pump which piston run to and fro is known as

a) Reciprocating pump c) mono pump

b) drill pump d) None of these

34. The thickness of brick dam should not be less than

a) 1.0 M c) 1.80 M

b) 1.0 M d) None of these

35. What is the capacity of 6L3 Pump

a) 1000 gpm c) 800 gpm

b) 500 gpm d) None of these

36. The ratio of Carbon monoxide produced and oxygen consumed is called

a) Willet's Ratio c) Jhones & Tricktets Ratio

b) Graham's Ratio d) None of these

37. What is the sand to water ratio in deep mines by volumes?

a) 1:1 c) 1:2

b) 1:1.3 d) None of these

38. What shall be size of grizzly of Mixing Chamber Grizzly?

a) 1 to 1.5 inch c) 2 to 2.5 inch

b) 2 to 2.5 inch d) None of these

39. Which of the following is not the types of stowing

a) Hydraulic Stowing c) Mechanical Stowing

b) Pneumatic Stowing d)

JET-2022 Mining Sample Paper

40. What is a hydraulic profile

a) Configuration of stowing pipeline at underground c) Both a & b

b) the pipe layout from the surface of stowing

installation arrangement to the site of discharge

d) None of these

41. What is the recommended R.P.M of pneumatic drill m/c of Rana Make?

a) 650-750 c) 850-950

b) 750-850 d) None of these

42. Contiguous seams are seams

a) Within 9 meters of each other c) Within 15 meters of each other

b) Within 5 meters of each other d) None of these

• IoT

43. PDCA cycle is the contribution of

a) Walter Shewhart c) Genichi Taguchi

b) Philip Crosby d) W. Edward Deming

44. In absence of daily management?

a) Nothing big can be change c) No change in gain achieved by policy management

b) The gain achieved by policy management

go into vain

d) Cost of operation will reduce

45. Which one in the following is not Machine Learning disciplines?

a) Physics c) Neuro statistics

b) Information Theory d) Optimization Control

46. Which of these is a Lazy Learner Technique?

a) Decision Trees c) K-Nearest Neighbour

b) Apriori d) All of these

47. Which of the following is not a crypto-currency?

a) Bitcoin c) Litecoin

b) Ripple d) Dollar

a) Producing objects that are mutable and adaptable

c) Producing objects that are mutable

b) Producing objects that are adaptable d) Producing objects that are flexible

50. What are the benefits of Industry 4.0 in terms of operation efficiency?

a) Improved resource utilization c) Increased productivity

b) Increased cost of products d) Both (a) and (c)

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