OSP-Day 1

1.

1 point

14. What is the minimum bending radius in which HDPE ducts can be bent?

10 times the OD of the duct.

5 times the OD of the duct.

15 times the OD of the duct.

None of the above.

2.

1 point

What is the service life of the HDPE ducts used for NLD/Intracity works?

15 years

25 years

10 years

20 years

3.

1 point

13. What is the outer diameter of HDPE ducts?

30 + 0.4 mm

35 + 0.4 mm

40 + 0.4 mm

None of the above.

4.

1 point

15. What is Construction Type-1 City ?

Cities with more than 150 eNodeBs or business ranking 1-40

Cities with eNodeBs in the range of 81-150 or all NLD AG2+OTN and the NLD AG2 cities with more than 40 eNodeB.

Cities having eNodeBs in the range of 11-80.

None of the above

5.

1 point

What is the minimum bending radius for duct laying?

1200mm

1300mm

1250mm

1500mm

6.

1 point

What is the IS specification of HDPE ducts ?

IS 3589

IS 12592

IS 1239

IS 4984

7.

1 point

9. What is the inner diameter of HDPE ducts?

29mm

33mm

31mm

35mm

8.

1 point

What is the thickness of lubricated inner layer of the ducts? (In mm).

0.45 – 0.68

0.40 – 0.55

0.2 – 0.28

0.28 – 0.42

9.

1 point

What is the best way for un-coiling the duct during duct laying?

Manually

Through duct de-coiler.

Both of the above.

None of the above.

10.

1 point

Where is the joint closures installed for jointing of OFC?

ILA

Hand Hole

Man Hole

All of the above.

11.

1 point

What is the minimum tensile strength required for HDPE ducts as per ASTM D638 Type-IV specifications?

20 Kn/mm2

20 N/mm2

20 N/cm2

None of the above

12.

1 point

What type of HDPE ducts are used for NLD/Intracity works?

Post – Lubricated

Permanently Lubricated

Without Lubrication

None of the above

13.

1 point

10. What is the safe temperature range for use of HDPE duct ?

(-) 5 to (+) 55ºC

(-) 10 to (+) 65ºC

(-)15 to (+) 55ºC

0 to (+) 55ºC

14.

1 point

What is the permissible limit of HDPE duct wall thickness including inner layer?

3.7 +/- 0.2mm

3.9 +/- 0.2mm

3.9 +/- 0.4 mm

3.5 +/- 0.2mm

15.

1 point

What is the minimum bend radius of OFC loop stored in the Manhole?

15 times the diameter of the cable

10 times the diameter of the cable

40 times the diameter of the cable

20 times the diameter of the cable