Drilling And Blasting - Study Mode
[#391] Face pump h.p varies from
Correct Answer
(A) 5 - 15 Hp
[#392] Spraying the surface of stoping with liquid cement sand mixture ratio 3 : 1 called
Correct Answer
(B) Guniting
[#393] Identify the odd out if the lot.
Correct Answer
(D) Order
[#394] Saylor's classification is based on . . . . . . . .
Correct Answer
(C) Composition of coal
[#395] Taking the air to the lower point of the district and allow to travel to higher levels to ventilate the district or faces before goes to return . . . . . . . .
Correct Answer
(A) Ascensional