21. The cross-sectional area of 52 kg flat footed rail is_________________? A. 6155 mm2 B. 6615 mm2 C. 7235 mm2 D. 7825 mm2 ✅ The correct answer is option B.
22. Sleeper density in India is normally kept as___________________? A. M + 2 to M + 7 B. MtoM+2 C. M + 5toM+10 D. M ✅ The correct answer is option A.
23. The compensation for curvature on gradient for Meter Gauge is given by________________? A. 70/R B. 52.5/R C. 35/R D. 105/R ✅ The correct answer is option B.
24. Creep is the_______________? A. longitudinal movement of rail B. lateral movement of rail C. vertical movement of rail D. difference in level of two rails ✅ The correct answer is option A.
25. Number of dog spikes normally used per rail seat on curved track is__________________? A. one on either side B. two outside and one inside C. one outside and two inside D. two outside and two inside ✅ The correct answer is option B.
26. A treadle bar is used for_____________________? A. interlocking points and signal B. setting points and crossings C. setting marshalling yard signals D. track maintenance ✅ The correct answer is option A.
27. Normally maximum cant permissible in Meter Gauge is__________________? A. 75 mm B. 90 mm C. 140 mm D. 165 mm ✅ The correct answer is option B.
28. Largest dimension of a rail is its________________? A. height B. foot width C. head width D. any of the above ✅ The correct answer is option A.
29. Lead of crossing is the distance from the_________________? A. heel of the switch to the toe of the switch B. heel of the switch to the theoretical nose of the crossing C. toe of the switch to the theoretical nose of crossing D. toe of the switch to the actual nose of crossing ✅ The correct answer is option B.
30. Standard size of wooden sleeper for Broad Gauge track is____________________? A. 275x25x13cm B. 180x20x11.5 cm C. 225x23x13 cm D. 250x26x12 cm ✅ The correct answer is option A.