41. Which of the indigenous firm do manufacture SDL& LHD in India? A. Joy mining machinery company B. Atlas Copco C. Eimco Elecon D. Tractors India limited Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
42. The mass of a rope depends upon the . . . . . . . . of steel. A. Quantity B. Quality C. Abrasive D. Fatigue Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
43. Which of the following can be used safely right upto the face of coal mine A. Battery loco B. Diesel loco C. Trolley wire loco D. All of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
44. In coned socket type capel the metal poured is . . . . . . . . A. Gunmetal B. Brass C. White metal D. Babbit metal Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
45. Which metal is used for the purpose of capping of winding ropes? A. Cu B. Zn C. Fe D. Ag Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
46. Ropes used for drag line. A. Langs lay B. Locked coil C. Regular lay D. Flattend strand Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
47. The wire rope which offers better wearing surface and more resistant to bending fatigue called . . . . . . . . A. Langs lay B. Ordinary lay C. Right hand lay D. Locked coil Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
48. For AFC open-bottom pans are preferable to closed-bottom pans because A. These don't sink into soft floor being of lighter weight B. The return chain cannot get jammed due to accumulation of coal particles C. These can be easily inspected and maintained D. These make less noise Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
49. Preshaping the wires and strands in to exact helical positions, they assumed in the finished shape called . . . . . . . . A. Equal lay B. Left hand lay C. Preformed rope D. All Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
50. The ropes used for winding; haulage, coal cutting are the examples of . . . . . . . . A. Non stranded B. Stranded C. Standing D. Running Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
