Mine Supports And Strata Control - Study Mode

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[#126] The Triaxial cell can test specimens upto . . . . . . . . long.

(A) 100 mm

(B) 120 mm

(C) 140 mm

(D) 150 mm

Correct Answer

(D) 150 mm

[#127] S.S.R. is framed for a distance upto . . . . . . . . meters of every development face.

(A) 3

(B) 7.5

(C) 10

(D) 15

Correct Answer

(C) 10

[#128] Roadway rippings are dirts bands, shales used as support in mines as

(A) Roadway lining

(B) Packwall

(C) Props

(D) Void formation

Correct Answer

(B) Packwall

[#129] Minimum thickness of lid . . . . . . . . placed over prop.

(A) 40 mm

(B) 50 mm

(C) 60 mm

(D) 80 mm

Correct Answer

(D) 80 mm

[#130] For fixing the cross bars holes are made in the coal pillar manually by using.

(A) Pick axe

(B) Drill holes reaming

(C) Crow bar

(D) Sawage

Correct Answer

(C) Crow bar