SECL Mining Sirdar EXAM-2020 PAPER
SECL Mining Sirdar EXAM-2020 PAPER
1. The duty of Workmen Inspector to inspect the coal mine.
a) Once in a week
b) Twice in a week
c) Twice in a month
d) Once in a month
2. Which test is to be done to know the presence of Methane by Flame Safety Lamp.
a) Degree of gassiness
b) Accumulation Test
c) Percentage Test
d) Both B & C
3. An Anchor Testing Machine is used for.
a) Testing of strength of a Dam
b) Testing of roof bolt
c) Testing of coal strength
d) Testing of gas
4. Before starting a depillaring in a coal mine, it is required to construct.
a) Ventilation stopping
b) Sectionalisation stopping
c) Preparatory stopping
d) None of the above
5. Goaf word is related to
a) Longwall method
b) Highwall method
c) Bord and pillar method
d) Both A & C
6. Minimum statutory requirement to work in the mine for contractual person is
a) To be initially medically examined
b) To be matriculate
c) To be vocationally trained
d) Both A & C
7. A gallery driven in the pillar for the purpose of depillaring is a UG Coal Mine is called
a) Staple pit
b) Drift
c) Stook
d) Split
8. The height of the berm should be
a) Equal to the height of the tyre of the largest dumper plying on the road.
b) 1/3rd of the height of the type of the largest dumper plying on the road.
c) 2/3rd of the height of the tyre of the largest dumper pying on the road.
d) One meter
9. What does SMP as per CMR 2017 mean
a) Strata Monitoring Plan
b) Safety Management Plan
c) Slope Monitoring Procedure
d) None of the above
10. Mining Sirdar shall inspect the area under his jurisdiction
a) Within five hours of commencement of work
b) Within two hours of commencement of work
c) Within three hours of commencement of work
d) Within four hours of commencement of work
11. Carrying of Self-rescuer in UG mine is essential for
a) Degree-I Mine
b) Degree-II mine
c) Degree- III mine
d) All of the above
12. Diagonal line of extraction is related to
a) Bord & pillar method
b) Highwall method
c) Blasting gallery method
d) Longwall method
13. SCAMP means
a) Support control and maintenance plan
b) Systematic care and mine plan
c) Strata control and monitoring plan
d) None of the above
14. Which of these Fire extinguishers can be used in electrical fires?
a) Foam
b) CO2
c) Water mist
d) Wet chemical
15. The length of cogging member for the support in coal mine should not be less than
a) 0.5 meters
b) 1.2 meters
c) 1.5 meters
d) 1.0 meters
16. What is the maximum wet bulb temperature allowed in any working place in every ventilating district?
a) 33.5 degree centigrade
b) 30 degree centigrade
c) 37.5 degree centigrade
d) 31 degree centigrade
17. Parking brake in opencast coal mine is related to
a) Dozer
b) Dumper
c) Belt conveyor
d) Loading machine
18. What is the name of attachment behind an ascending tub or set of tubs in a haulage system to prevent tubs running backwards?
a) Stop block
b) Coupling
c) Back stay
d) Prop
19. Gassy Seam of third degree in UG coal mine, seam in which the rate of emission of inflammable gas per tonne of coal produced is more than
a) 10 cubic meters
b) 15 cubic meters
c) 20 cubic meters
d) 30 cubic meters
20. Gradient of haul road should not be more than.
a) 1 in 20
b) 1 in 18
c) 1 in 15
d) 1 in 16
21. What is the operation for extraction or reduction of pillars is called
a) Depillaring
b) Development
c) Caving
d) None of the above
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