Quiz difficult

Carriage & Wagon Theory for LDCE(Mech)

difficult wagon maintenance

1 / 50

1. What specific information must be included in the warranty legend on a newly built wagon?

1. Wagon weight and capacity

2. Contract number, date of commissioning, commissioned by, inspection due on, and inspection done by depot and date

3. Manufacturer's address and phone number

4. Date of manufacture and expiry date

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2. What is the condition for extending the life of a departmental stock beyond 40 years up to 50 years?

1. Automatic extension is granted

2. PCME may extend one year at a time based on annual condition reports

3. Railway Board approval is required

4. RDSO approval is required

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3. What is the condition for the use of departmental wagons up to an age limit of 40 years?

1. They can be used without any condition

2. They shall be reviewed in every ROH and POH to assess suitability

3. They must be painted a different color

4. They must be used only for non-critical tasks

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4. What is the specific requirement for the modification work on wagons used for departmental purposes?

1. It can be done at any location

2. It shall be carried out only at a POH workshop or open line wagon depot maintained by the PCME

3. It can be done by the user department

4. It does not require any approval

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5. What is the maximum age limit for departmental wagons to remain in service?

1. 40 years

2. 45 years

3. 50 years

4. 55 years

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6. What is the authority for condemning non-accident air brake stock of more than 25 years of age?

1. DRM

2. CME with FA&CAO's concurrence

3. GM

4. Railway Board

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7. What is the authority for condemning all accident-damaged wagons and vacuum brake stock?

1. DRM

2. CME

3. GM

4. Railway Board

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8. What is the procedure for disposing of condemned BG and MG wagons?

1. They are repaired and reused

2. They are condemned on an as-is-where-is basis and moved to nominated yards

3. They are sent back to the manufacturer

4. They are stored indefinitely

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9. What is the specific requirement for the centre pivot regarding cracks during ROH?

1. Ignore small cracks

2. Check for welding defects, cracks, and abnormal depth due to wear

3. Only check for wear

4. Only check for lubrication

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10. What must be ensured about the striker casting location during structural audit?

1. It is painted

2. It is in sound condition

3. It is lubricated

4. It is from a specific manufacturer

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11. What is the specific requirement for the anchoring tee regarding repairs?

1. It must be repaired by welding

2. It should not be patched or repaired at any portion

3. It can be patched if approved

4. It must be replaced if repaired

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12. What is the condition for the anchoring tee in a BTPN wagon for life extension?

1. It must be painted

2. It should not be cracked, bent, or permanently distorted

3. It must be replaced

4. It must be from a specific manufacturer

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13. What is the specific requirement for cross bars and stringers during structural audit?

1. They must be painted

2. They should be replaced if corroded, heavily worn out, or damaged

3. They must be lubricated

4. No action is required

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14. What is the condition of the bolster for life extension?

1. It must be new

2. It must be repairable and not cracked, bent, or permanently distorted

3. It must be from the original manufacturer

4. It must have a specific paint color

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15. What is the condition for the centre sill regarding camber for life extension?

1. It must have a negative camber

2. It should have a positive camber

3. Camber is not important

4. It must have zero camber

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16. What is the specific requirement for the draft gear pocket during structural audit?

1. It must be painted

2. It should have no permanent damage and dimensions made correct

3. It must be replaced

4. It must be lubricated

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17. What is the permissible minimum thickness for the sole bar web of a standard BOXN wagon for life extension?

1. 6 mm

2. 7 mm

3. 8 mm

4. 9 mm

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18. What is the permissible minimum thickness for the sole bar web of a BOBRN wagon for life extension?

1. 6 mm

2. 7 mm

3. 8 mm

4. 9 mm

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19. What is the permissible minimum web thickness for a BTPN wagon bolster for life extension?

1. 5 mm

2. 6 mm

3. 7 mm

4. 8 mm

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20. What is the permissible minimum web thickness for a BOBRN wagon bolster for life extension?

1. 5 mm

2. 6 mm

3. 7 mm

4. 8 mm

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21. What is the permissible minimum thickness for the top and bottom flange of a BOBSNS wagon bolster for life extension?

1. 8 mm

2. 10 mm

3. 12 mm

4. 14 mm and 10 mm respectively

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22. What is the permissible minimum thickness for the top and bottom flange of a BOBRN wagon bolster for life extension?

1. 8 mm

2. 10 mm

3. 12 mm

4. 14 mm

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23. What is the permissible minimum thickness for the top and bottom flange of a BOY wagon bolster for life extension?

1. 8 mm

2. 10 mm

3. 12 mm

4. 14 mm

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24. What specific information must be included in the forwarding memo when sending failed material to the CMT?

1. The date of failure

2. The names of the witnesses

3. The wagon number, owning railway, builder's name, contract number, and warranty report serial number

4. The estimated cost of repair

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25. What is the purpose of sending failed material to the Chemist and Metallurgist?

1. To determine the cost of repair

2. To obtain a test report to accompany the warranty report

3. To identify the manufacturer

4. To determine the age of the material

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26. What is the free height of an inner coil spring below which it must be replaced?

1. 245 mm

2. 247 mm

3. 279 mm

4. 250 mm

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27. What is the free height of a snubber spring below which it must be replaced?

1. 245 mm

2. 247 mm

3. 279 mm

4. 250 mm

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28. What is the permissible minimum depth of the machined relief on an adapter?

1. 0.5 mm

2. 0.7 mm

3. 0.8 mm

4. 1.0 mm

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29. What is the permissible maximum depth of wear on the thrust shoulder of an adapter before it needs replacement?

1. 0.5 mm

2. 0.7 mm

3. 1.0 mm

4. 1.2 mm

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30. What is the permissible maximum wear on the side lug of an adapter before it needs replacement?

1. 2 mm

2. 3 mm

3. 4 mm

4. 5 mm

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31. What is the permissible maximum wear on the crown surface of an adapter before it needs replacement?

1. 2 mm

2. 2.5 mm

3. 3 mm

4. 3.5 mm

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32. What is the specific requirement for the bogie frame during ROH?

1. It must be painted

2. Frame alignment must be checked

3. It must be replaced

4. It must be lubricated

33 / 50

33. What is the consequence if a BOXN C category wagon sent to the workshop is not taken up for rehabilitation but its ROH is due within the next 6 months and POH is due in 14 months?

1. It should be given POH

2. It should be given ROH

3. It should be sent back without any work

4. It should be condemned

34 / 50

34. What is the precise condition for using an old locking plate for a Cartridge Tapered Roller Bearing?

1. It can be reused if it is not bent.

2. It can be reused once if it is annealed.

3. A new locking plate is to be used whenever the end cover is opened.

4. It can be reused if the wagon is not due for POH.

35 / 50

35. During an ROH, after the air brake system is attended to, the wagon is tested with a single car test device. What must be done with the pressure gauge readings?

1. They are noted for the workshop records only.

2. They are recorded in the test proforma, and the wagon passes only if all parameters are within specified limits.

3. They are compared with the readings from the previous ROH.

4. They are sent to the RDSO for analysis.

36 / 50

36. A CRF 'Z'-section centre sill is being inspected for life extension. Its current thickness is 6.2 mm. What is the mandatory action before the wagon's life can be extended, according to the structural audit guidelines?

1. No action is needed as 6.2 mm is above the 6 mm minimum.

2. A stiffener plate shall be welded before life extension.

3. The centre sill must be replaced entirely.

4. The wagon must be derated for lower-speed operation.

37 / 50

37. What are the two clearance measurements that contribute to the overall "Lateral clearance between Side frame & Bolster"?

1. Side frame column sides and Bolster column jib

2. Side frame pedestal sides and Adapter sides

3. Side frame crown sides and Adapter crown

4. Side frame column and Bolster land surface

38 / 50

38. A BOXN wagon is sent to the workshop for Category C repairs with prior CRSE(Fr.) approval. Its POH is due in 14 months, and its ROH is due in 3 months. According to the guidelines, what attention must the wagon receive?

1. Only the Category C repairs, as per its work order.

2. It should be given ROH attention because it is due within 6 months.

3. It should be given POH attention because it is due within 12 months.

4. It should be condemned as it requires heavy repairs.

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39. An over-aged wagon is being considered for departmental use. It has a pre-existing modification that was not approved by RDSO. Under what condition can this wagon be used departmentally?

1. It cannot be used under any circumstances.

2. It can be used if the modification is removed.

3. It can be used if the PCME approves the pre-existing modification.

4. It can be used if the DRM approves it for a maximum of one year.

40 / 50

40. A BOXN wagon's knuckle nose measures 4.5 mm. As per the maintenance practices, where can this knuckle be used?

1. It can only be used in the yard.

2. It must be replaced immediately as it is worn out.

3. It can be used on any train, including passenger trains.

4. It must be sent to the workshop for reconditioning.

41 / 50

41. What is the specific action to be taken on a cartridge tapered roller bearing's "Seal" during maintenance, and what is the condition for that action?

1. Replace the seal if it is more than 5 years old.

2. Check the seal for external damage/dent.

3. Lubricate the seal with high-pressure grease.

4. Remove the seal and inspect the bearing rollers.

42 / 50

42. During a structural audit for life extension, a BTPN barrel is found to have a thickness of 8.5 mm in the cylindrical portion. What is the outcome regarding life extension?

1. The wagon can be considered as 8.5 mm is above the 6.5 mm minimum.

2. The wagon cannot be considered because the thickness must be at least 9 mm for the cylindrical portion.

3. The wagon can only be considered if the dished end thickness is more than 10 mm.

4. The barrel must be replaced before the wagon can be considered.

43 / 50

43. A BOXNHL wagon with a three-piece centre sill is found to have a crack. According to the relevant RDSO communication, what is the immediate source of information for the detailed repair procedure?

1. The general maintenance manual G-76

2. The POH schedule

3. A specific drawing number

4. The condemnation guidelines

44 / 50

44. A non-accident air brake wagon of 22 years of age is proposed for premature condemnation. According to the policy, who is the competent authority for approving this condemnation?

1. CME

2. CME with FA&CAO's concurrence

3. Railway Board

4. GM

45 / 50

45. During the structural audit of a bolster for a BOXN wagon, the web thickness is found to be 5.8 mm. The nominal web thickness is 6 mm. According to the guidelines, can this bolster be accepted for life extension?

1. Yes, as it is close to the nominal thickness

2. No, because it is below the nominal thickness

3. No, because the minimum acceptable web thickness is 6 mm

4. Yes, but only if a stiffener plate is added

46 / 50

46. A BTPN wagon is undergoing a structural audit for life extension. The cradle is found to have some loose rivets, but upon inspection, the holes in the cradle and Tee are not elongated. What is the correct course of action?

1. The wagon must be rejected for life extension as any loose rivet is a disqualifier.

2. The rivets can be replaced, and if the holes are sound, the wagon can be considered further.

3. The entire cradle must be replaced.

4. The loose rivets can be welded instead of replaced.

47 / 50

47. In the context of BOXN wagon categorization, a wagon in the 10-23 year age group is unloadable and requires heavy body/floor repairs. What are the two possible paths for this wagon, and what is the condition for one of them?

1. It can be sent for Category C repairs in a workshop or taken up for upgraded rehabilitation (BOXNR).

2. It must be condemned or sent for POH only.

3. It can only be repaired on-site with petty repairs or be condemned.

4. It can be converted for departmental use or sent for ROH.

48 / 50

48. During a structural audit for life extension, a BOBSNS wagon's bolster top flange measures 13 mm. Given the nominal and minimum thicknesses, what is the verdict?

1. The wagon qualifies for life extension as the measurement is above the minimum.

2. The wagon does not qualify as the measurement is below the nominal thickness.

3. The bolster must be replaced regardless of the measurement.

4. The measurement is irrelevant; only the centre sill condition matters.

49 / 50

49. A loaded BOXN wagon is found to be 45 days past its POH due date at an intermediate yard. What is the correct course of action as per the rules?

1. It must be immediately detached and sent to the sick line for POH.

2. It can be allowed to run to its destination as loaded wagons have a 30-day grace period, but it is now 15 days over, so it must be detained.

3. It can continue, but a note must be made on the brake certificate.

4. The POH due date can be re-stenciled for another 6 months.

50 / 50

50. In the warranty inspection of newly built wagons, what is the specific condition for reporting roller bearing defects, and what must be done before attributing the defect to the manufacturer?

1. Any visible defect is immediately reported to the manufacturer after a visual check.

2. The entire wheel assembly is sent to the workshop; after workshop inspection, if attributable, the in-charge reports it.

3. The wagon is sent back to the builder for their inspection and report.

4. The defect is noted, and the Railway Board is informed directly without workshop intervention.

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