Inundation in Mines

1. The method of dealing with fire in a mine where heating is in the initial stages and its exact location is known is?

2. The electric cap lamp is?

3. The length of the bore hole should not be less than .... while working near waterlogged workings?

4. The flame of a flame safety lamp while testing for CH4 spires or jumps at the ?

5. VOLSAFE boring apparatus can drill holes up to ..... depth?

6. The interval of boreholes should not be more than .... while working near waterlogged workings?

7. While approaching a water logged area with safety boring apparatus an emergency shutoff door shall be built away from the site of the boring machine at a distance of?

8. In working of a water logged area the gallery should not be more than?

9. Automatic detectors give either audio or visual alarm when the % of inflammable gas exceeds?

10. The holes drilled at different angles into sides while approaching a water logged area is?

11. A stone dust barrier may fail to arrest an explosion if there is a .... in the roof of the roadway over the barrier?

12. No working should be done within a distance of ..... from the water logged area or abandoned mine or disused workings?

13. The thickness of the permanent water dam is?

14. Spraying the surface with a liquid cement sand mixture (1:3) in dealing with fire is known as?

15. The thickness and height of the temporary dam?

16. When approaching within 60 m from the probable old working place the boreholes should be driven at least?

17. Tuberculosis is caused due to ?