1. Formation & Rails

In Dhaka Metro 60E1 rails are supplied by Nippon steel, Japan.

• True

• False

Formation is also known as foundation of the track structure.

• True

• False

By doing additional earthwork over existing ground is known as __________.

• Embankment

• Cutting

• Soil Investigation

• All the above

The Web thickness of 60 KG Rail is ------ mm.

• 16.5

• 51

• 72

• 150

The Standard length of R350 HT rails used in Dhaka Metro is _____m.

• 13

• 18

• 25

• 26

In Head Hardened Rails, the top surface of the rail head is hardened to a depth of -------mm.

• 6

• 12

• 14

• 16

In the Dhaka Metro, Brand marks are rolled onto one side of the web of the rail every ______ meters.

• 3

• 4

• 6

• 10

Brand Marks Shall Include

• Identification of the Mill

• Steel Grade

• Year of Manufacture

• All the above

Use Two-point slinging for rail length up to 13 m.

• True

• False

Deciding Factors for Rail Section

• Axle Load

• Maximum Speed

• Ballast Cushion/Plinth Thickness

• All the above