Drilling And Blasting - Study Mode
[#176] The detonator inserted in explosive cartridge called
Correct Answer
(B) Primer
[#177] Surface screening plants and tipplers should be atleast . . . . . . . . away from the intake shaft.
Correct Answer
(D) 90 m
[#178] It is the ability of coal dust to cause a flame to spread away from source of ignition called . . . . . . . .
Correct Answer
(A) Infalammability of coal dust
[#179] The instrument to determine the distance travelled by air in a given time is . . . . . . . .
Correct Answer
(D) Anemometer
[#180] In sinking shaft drilling is done by
Correct Answer
(A) Hand held jack hammer