Coal Mining - Study Mode

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[#106] One of the special methods of shaft sinking is

(A) Tubbing

(B) Therming

(C) Moulting

(D) Trigger method

Correct Answer

(D) Trigger method

[#107] Number of buckets commonly used in shaft sinking process

(A) 1

(B) 2

(C) 3

(D) 4

Correct Answer

(B) 2

[#108] Number of legs in derrick

(A) 2

(B) 4

(C) 5

(D) 1

Correct Answer

(B) 4

[#109] Lining employed in case of water bearing strata containing water at high pressure

(A) Tubbing

(B) Concrete lining

(C) Manolith lining

(D) Brick lining

Correct Answer

(A) Tubbing

[#110] The thickness of one slice in multi section extraction of thick seams.

(A) 2.4 - 3 m

(B) 1.5 - 2 m

(C) 2 - 2.5 m

(D) 3 - 3.5 m

Correct Answer

(A) 2.4 - 3 m