1. Pulse Echo Tester works on-------------------------------- principle.2. Black Brown pair is the -----------pair of a 20 pair cable.3. A 400 pair cable consists of ----- number of super units of -------pair size.4. The cable from MDF to Cabinet is called …………………………………….5. The DC potential between A or B wire to earth is …………………………………6. Colour of the third binder for unit identification in a PIJF cable is

……………..7. The Outer Zone of an exchange area is made up of a number of

…………………….. areas.8. The binder colour and the colour of the 69 th pair in a 100 pair cable is

………………..binder and …………………………………..9. Pillars are numbered from ----- - to -------10. …………………………………… is the weakest portion in the length of any

cable.

11. Yellow Brown pair is the -----------pair of a 20 pair cable.12. A 800 pair cable consists of ………… number of super units of …………pair

size.13. The cable from Pillar to DP is called …………………………………….14. The lay of various cable pairs are so chosen as to satisfy …………… &

……………15. Colour of the fourth binder for unit identification in a PIJF cable is

……………..16. Normally Telephone Exchanges are located in a place called

…………………….. 17. The binder colour and the colour of the 84 th pair in a 100 pair cable is

………………..binder and …………………………………..18. 96+8 pair PCM cable consists of …………… number of units of …………..

pair size.19. The ratio of the power received at the end of the line to the power

transmitted into the line is known as …………………………………… 20. ………………………………… constitutes the last link in the external plant

network from DP to subscriber premises.

21. ____________ noise is present in all transmission media and is a function of temperature.

22. Before providing Broadband service to a customer, measure insertion loss using ……….

23. ………….noise is a primary source of error in digital data communication.24. A high level of NEXT indicates cable faults indicates cable faults

…………………...25. Identify the last five pairs of a 800 pair PIJF cable.26. There are …………..units of…………pairs in 100 pair cable.27. There are …………..units of…………pairs in 400 pair cable.28. The colour of the 4th unit of a 100 pair cable………………29. For jointing 100 pair cables………………….kit is used.30. Meggar used for cable jointing, works on the principle of ----

31. TSF I kit is used for jointing……………..and…………………cables32. …………….kit is used for jointing 200 pair cables.33. PCUT(Paper Core Unit Twin) is used for ……………………….34. PCQL(Paper Core Quad Local) is used for ……………………. .35. In LSDC, the insulation is ……………………. & sheath is

………………..36. Pillars are numbered in ………digits37. DP numbering has…………digit38. ………..Cable is used for poleless connections.39. The colour of marker tape is …….40. …………………type wiring only is used in Krone type CT box.

41. These cables are used as the link between two exchanges to take large number of circuits and are called …………….

42. The material used as Moisture Barrier in jelly cable is ……….43. In BSNL to provide data services including Internet ……….technology is

being used.44. The standard depth of trench for laying the cable in BSNL is ……….45. The width of the trench should be of …. cm. to ……cm.46. The principle used for the working of Cable fault localizer is ……47. The colour of the binding tape of second bunch in a 50 pair cable is ……..48. 4203 is the DP belonging to …….Pillar.49. The two purposes of the insulation are _________________ &

______________50. The value of V/2 parameter of PIJF is _________

Sl no Protection Material

1. External jacket

2. Screen

3. Armour

4 Bedding

5. Filling compound

6 Conductor