4. Track Tolerances, Track Recordings & Track Inspection

The Maximum Variation for Ballastless Track at laying stage is 1435 _____ mm.

• ± 1

• ± 2

• - 2 to + 1

• - 1 to + 3

In Turnouts, difference in Vertical wear between Switch & Stock rail if 4 mm or more

• Replacement of Half Set of Switches

• Intervention within a month

• All the above

Permitted Variations in track parameters are known as Track Tolerances.

• True

• False

In Laying stage, the Maximum Variation of Cant/Cross level in Straight & Circular Curve is _____ mm.

• +/- 1

• +/- 2

• +/- 3

• +/- 5

OMS 2000 is used to record _______.

• Horizontal Oscillation

• Vertical Oscillation

• Horizontal & Vertical Oscillation

Foot, Cab and Rear vehicle inspections are of different types.

• True

• False

The Average total number of Peaks/Km < 1.5 the track is ________.

• Very Good

• Good

• Average

• Bad

Urgent attention required for

• Peaks > 0.35

• Peaks < 0.35

• Peaks > 0.15

• Peaks < 0.15

Portable Accelerometers OMS 2000

• Comprises Accelerometers & Transducers

• Converts Oscillations to Electrical Signals

• Electronic Recording & Computer Processing

• All the above

Benefits of Track Inspection

• Assessment of Previous Maintenance Effectiveness

• Timely Planning for Track Maintenance

• Timely Planning for Track Renewal Activities

• All the above