Ch-5 Track Monitoring and Tolerances

How much length of track is taken as a block in TRC for reporting track parameters?

• 100m
• 500m
• 200m
• 1000m

Which portable equipment is used to measure the track performance by measurement of vehicle response in terms of vertical and lateral accelerations.?

• TRC
• OMS
• Oscillograph
• None of the Above

What is the frequency of OMS recording on routes having speed above 100 Kmph?

• Once every month
• Once in twelve months
• Once in three months
• Once in six months

Should a turnout be tamped fully or partially if any part of the turnout falls within the NBML block in the yard?

• Full cross over
• Full yard
• Full turnout
• Approach

In how many categories, Track is divided for planning of maintenance based on TRC result?

• Three (PM, NBM & UM)
• Two
• Four
• Five

How much percent of blocks in block section exceeds PML to qualify for through tamping in planned maintenance?

• 0.2
• 0.6
• 0.3
• 0.4

How much percent of blocks in yards exceeds PML to qualify for through tamping in planned maintenance?

• 0.6
• 0.5
• 0.4
• 0.3

What is the permissible limit of twist during regular maintenance of track on transition of curve in floating condition based on 3.0 m chord?

• 2.1 mm/m (Local defects above Designed value)
• 3.5 mm/m
• None of the Above
• Any of the Above

What is the permissible limit of twist during regular maintenance of track on straight and curved track, other than transition in floating condition based on 3.0 m chord?

• 5 mm/m
• 2.1 mm/m
• 3.5 mm/m
• None of the Above

What is the maximum duration between two reviews of track health when TRC has not run for more than one year and the last tamping has been done more than two years before?

• Four months
• Six months
• Three months
• Twelve months