Drilling And Blasting - Study Mode

[#291] If the atmosphere contain full O 2 the apparatus used by weaver to protect himself from poisonous atmosphere containing CO and other toxic gases in small percentages called . . . . . . . .
Correct Answer

(B) Gas mask

[#292] Number of cylinders in the Novex reviving apparatus.
Correct Answer

(A) 1

[#293] The deepest shaft in coal mine in this country is at . . . . . . . .
Correct Answer

(D) Chinakuri colliery

[#294] Mine air is coursed to the working places by the use of . . . . . . . .
Correct Answer

Stoppings

[#295] Permitted explosives are always
Correct Answer

(A) Capsensitive