21. Function of pull cord in the belt conveyor system is A. Cleaning device B. safety stopping device C. Material discharging on the side of the belt D. Increasing the angle of wrap 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
22. Detaching hooks are used only with A. Drum winders B. Koepe winders C. Both drum and koepe winders D. None of the above 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
23. What is the main purpose of jazz rail on underground haulage track? A. To provide smooth running of tubs B. To avoid derailment of tubs C. To avoid over speeding D. To maintain good alignment of track 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
24. If the wires in the strand and the strands in the rope are laid in opposite direction called . . . . . . . . A. Ordinary lay B. Lang's lay C. Left handlay D. Right handlay 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
25. A 12 tonne diesel locomotive of 60 kW is plying in an underground haulage roadway. The coefficient of adhesion is 0.25 and the maximum gear efficiency is 80%. The speed in m/s at which it will haul a train at its full power is A. 2.548 B. 2.448 C. 2.038 D. 1.630 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
26. According to IS specifications 1835 of 1961 neither sulphur nor phosporous content in steel for wire rope should exceed . . . . . . . . percent. A. 0.48 B. 0.05 C. 0.033 D. 0.014 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
27. The length of splice is nearly . . . . . . . . for 25mm diameter rope. A. 10 - 15m B. 6 - 9m C. 0 - 6m D. 15 - 20m 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
28. Which of the following haulages is one that is situated at a lower level and empties are hoisted up the sloping track? A. Endless haulage B. Direct rope haulage C. Tail rope haulage D. Main and tail rope haulage 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
29. The rope used for monocable aerial rope way. A. Regular lay B. Langs lay C. Left hand lay D. Right hand lay 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
30. What is the track gauge for tubs of 1.1m3? A. 0.4m B. 0.6m C. 0.8m D. 1m 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
