Miscellaneous In Mining - Study Mode

[#151] Number of cylindrical glasses in GL-60 flame safety lamp.
Correct Answer

(A) 1

[#152] Find the formule for HP assistance due to NVP.
Correct Answer

(D) $$frac{{{ ext{PQ}}}}{{75}}$$

[#153] The persons worst subjected dust hezard in coal mines are . . . . . . . . .
Correct Answer

(B) Loaders

[#154] The wire gauze shall have the total heat radiation area of not less than . . . . . . . . cm 2 .
Correct Answer

(C) 155

[#155] Konimeter measures the dust concentrtion in terms of . . . . . . . .
Correct Answer

(C) PPCC