Miscellaneous In Mining — Part 2 MCQs with Explanations

3% is the correct answer to “Breathing get doubled, when CO 2 present in a mine is about . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

22 - 45 mg/m3 is the correct answer to “The dustiness can be formed at stone crushing sites about . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Intrinsically safe is the correct answer to “Safety torches are . . . . . . . . apparatus.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Calcium carbide is the correct answer to “The chemical contains in the lower container of acetylene portable hand lamp.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Convertion is the correct answer to “The hot gases of flame rise by . . . . . . . . to the top of the gauzes and through them and the outlet holes at the bonnet.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Good is the correct answer to “Wire gauze is . . . . . . . . conductor of heat.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

3 m is the correct answer to “The length of bore hole should not be less than . . . . . . . . which working near water logged workings.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Reflection is the correct answer to “When light falls upon a surface, part of its reflected and part absorbed called.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Vent is the correct answer to “The gasses exit by . . . . . . . . holes in the front of the old ham battery.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Candles is the correct answer to “The intensity of light measured by . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Portal to portal sampling is the correct answer to “Personal dust samples are suitable for”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Wheat stone bridge is the correct answer to “Methalaram works on the principle of . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Nitrogen is the correct answer to “In Trigger barrier . . . . . . . . is used.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

500 is the correct answer to “The life of the bulb of old ham battery is . . . . . . . . hours.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Ankylostomiasis is the correct answer to “Hook warm disease also called . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

1.5 is the correct answer to “The minimum average standards of lighting in haulage engines and control gear rooms in lumens/sq.ft.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

3 is the correct answer to “Reducing the sound power by half would lead to decrease in the dB value by”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

K. Oil is the correct answer to “The fuel used in GL-5 lamp is . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Gallaries approched water logged old workings of aboundoned mines is the correct answer to “The reason behind chasnala inundation.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

None is the correct answer to “Permissable limit of respirable concentration of dust should be checked on the basis of . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

1.5 kg/m3 is the correct answer to “The dustiness in dwellings is accumulate about . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Rock burst is the correct answer to “Destressing is a method of . . . . . . . . prevention in underground metal mines.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

End is the correct answer to “Bending moment of contiliver beam is maximum at . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

0.25 foot candela is the correct answer to “Cap lamp must able to produce an illumination of . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

1.25 is the correct answer to “The minimum average standards of lighting in road ways in underground in lumens/sq.ft.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Forward bladed is the correct answer to “The blade angle of fan is 78°, it denotes that fan is . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Fibrosis producing is the correct answer to “Silicosis and asbestosis are comes under inorganic dust producing disease group of . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Interier to exterier is the correct answer to “The main purpose of the wire gauze in flame safety lamp is to prevent passage of flame from . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Dust count method is the correct answer to “As the number of dust particles per cm 3 of air this method called as . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

2 is the correct answer to “Number of cylindrical glasses in GL-5 flame safety lamp”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Non cohesive soil is the correct answer to “Sand and gravel are . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

200 is the correct answer to “For conversion of weight standards to dust count standard, it is accepted that 1 mg/m 3 corresponds to about . . . . . . . . particles.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

1985 is the correct answer to “Mine rescue rules was incorporated in the year”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

30 is the correct answer to “Lead antimony plates carrying active materials and immersed in . . . . . . . .% in solution of H 2 SO 4 and distilled water.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

9% is the correct answer to “The maximum explosion violence is produced when the fire damp in the explosive mixture of mine air is . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Manager is the correct answer to “Who has power to give permission for reversal of air . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Anthra cosis is the correct answer to “The disease caused due to dusty atmosphere containing large amount of smoke”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

30 kg/m is the correct answer to “In light stone dust barrier the amount of stone dust is loaded is . . . . . . . .”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

Everaly 935 is the correct answer to “The battery cells used . . . . . . . . in GL-60 flame safety lamp.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.

2.5 is the correct answer to “For safe working, the air velocity should not exceed . . . . . . . m/s where carbide lamps used.”. This question is standard in competitive examination syllabi for Miscellaneous In Mining.