3. Ballasted & Ballastless Track Structure

In Dhaka Metro, the ballasted tracks are laid over a consolidated compacted levelled ground with heavily compacted granular material.

• True

• False

The Standard length of PSC Sleeper used in Dhaka Metro is 2500 mm.

• True

• False

Functions of PSC Sleeper

• Holding rails to Correct Gauge & Alignment

• Giving a firm and even support to rails

• Rectify Track Geometry

• All the above

In Dhaka Metro, Ballasted Tracks shall be used at Depot only.

• True

• False

In case of locations where higher noise and vibration attenuation are required, _________are used.

• Plinth Tracks

• Floating Slab Tracks

• Slab Tracks

• Ballasted Tracks

___________ Fastening system used for Elevated tracks in Dhaka Metro.

• Pandrol VIPA Double Resilient

• Pandrol 13145 DRB

• Vossloh 336

• Vossloh W14

Column track Fastenings spaced at _______ mm C/C.

• 600

• 900

• 1200

• 1500

Plinth Height Considers _________

• Design Rail Level

• Cant

• Vertical Curves

• All the above

_________ track also known as Flush Track in which the rail tops flush with the floor surface.

• Plinth

• Column

• Embedded

• Floating Slab

Special MS Base plate and ERC used for ------------- in Dhaka Metro.

• Column track

• Plinth track

• Embedded track at non electrified area

• Embedded track at electrified area