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SECL MINE SURVEYOR EXAM-2020 PAPER

SECL MINE SURVEYOR EXAM-2020 PAPER

1. Which of the following is not used for chain surveying?
    Ranging pole
    Arrows
    Chain
    Level instrument
2. Which of the following are the type of mines?
    Opencast mine
    Underground mine
    Mixed mine (OCM & underground)
    (i) and (ii)
    (i) & (iii)
    All of the above
    None of the above
3. Sum of the interior angles of a four sides close traverse is...
    360 degree
    560 degree
    180 degree
    600 degree
4. Horizontal distance of a Haul Road AB= 64 meter and point B is 4 meter down from point A, what is the gradient of the haul road?
    1 in 64
    1 in 16
    1 in 60
    1 in 68
5. Which is the favourable stripping ratio ratio (Coal: OB) for opencast mine?
    1:4
    1:5
    1:8
    1:10
6. Sum of three observed interior angle of a three sided traverse by theodolite is 179 degree, hat is the angular error?
    1 degree
    11 degree
    3 degree
    5 degree
7. Removal of OB in an opencast patch, average height is 15 meter and volume of overburden excavated is 6000 cubic meter then what is the area excavation?
    5985 sq.mtr.
    6015 sq.mtr.
    400 sq.mtr.
    None of these
8. Why ranging rod is panted with two different colours?
    In order to make them visible
    For beautification
    For longevity
    None of these
9. The Area of a coal stock yard is 50 sq. mtr, height of coal is 5 meter and specific gravity of coal is 1.5 tonne per cu. Mtr., then quantity of coal is …..
    250 tonne
    375 tonne
    56.5 tonne
    None of the above
10. How coal is extracted from opencast coal mine?
    By drift
    By shaft
    By open excavation
    None of these
11. Isocore line indicates, line joining …..
    Same thickness of coal
    Same thickness of OB
    Both A & B
    None of these
12. GPS stands for……
    Global positioning system
    Global prism system
    Global perimeter system
    None of these
13. Area of land is one Hectare i.e. ……
    10 m x 100 m
    10 m x 10 m
    100 m x 100 m
    200 m x 200 m
14. Which regulation defines duties and responsibilities of Surveyors under CMR 2017?
    Regulation 68
    Regulation 45
    Regulation 53
    Regulation 69
15. Volume is product of ….
    Length x height
    Length x width
    Length x height x width
    None of the above
16. In UG mine, return airways to be shown in which colour with arrow-
    Red
    Blue
    Green
    None of above
17. RL’s to be shown on UG working plan in colour …..
    Red
    Yellow
    Blue
    Nonw of these
18. Air Measurement Station (AMS0 to be shown on which statutory plans?
    Working plan
    Ventilation plan
    Geological plan
    None of the above
19. As per regulation 149 under CMR 2017, no working shall be made, any spot lying within a horizontal distance of … meter from either bank of river?
    15
    30
    25
    20
20. Surveyors are not responsible for …
    Make such accurate leveling
    Be responsible for the accuracy of plans and sections
    Be responsible for explosive record
    Make accurate survey