RAILWAY ENGINEERING QUIZ

71

70

73

72

Sometimes greater than flange-way clearance

Equal to flange-way clearance

Always less than flange-way clearance

Always greater than flange-way clearance

65 mm/sec

55 mm/sec

20 mm/sec

35 mm/sec

To permit lateral movement of the tongue rail

To prevent any vertical movement between the wing rail and nose of crossing

To ensure exact gauge at the toe of the switch as well as the nose of crossing

To maintain the two tongue rails at the exact distance

65 mm

10 mm

15 mm

85 mm

5.49 mm

4.27 mm

4.88 mm

4.55 mm

(i), (ii) and (iii)

only (i)

(i)and(ii)

(ii) and (iii)

two outside and two inside

two outside and one inside

one on either side

one outside and two inside

mild steel canted bearing plate

flat mild steel bearing plate

None of these

cast iron anti creep bearing plate

in the middle of the track a little in front of the toes of the tongue rail

at right angle to the rail

near and parallel to inner side of one of the rails

near and parallel to inner side of both the rails