Mining Machinery - Study Mode

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[#286] The speed of the machine of Auger type drill model 625 . . . . . . . .

(A) 1 km/hr

(B) 1.2 km/hr

(C) 1.5 km/hr

(D) 2 km/hr

Correct Answer

(C) 1.5 km/hr

[#287] A single stage axial flow halex installed in the suction type fan impeller to lower the NPSHR . . . . . . . .

(A) Volute

(B) Casing

(C) Inducer

(D) Eye

Correct Answer

(C) Inducer

[#288] Which of the indigenous firm do manufacture SDL & LHD in India.

(A) HEC Ltd

(B) Atlas Copco

(C) EIMCO Elecon

(D) Tractors India Ltd

Correct Answer

(C) EIMCO Elecon

[#289] The measuring unit of head is . . . . . . . .

(A) Meters

(B) Feet

(C) Weight

(D) Speed

Correct Answer

(B) Feet

[#290] In connection with lowering or raising of persons by means of bucket etc for a shaft exceeding 'A' m depth, there shall be significant cover overhead for protection from things falling down the shaft A is given by . . . . . . . .

(A) 130 m

(B) 190 m

(C) 270 m

(D) 480 m

Correct Answer

(A) 130 m