Incorrect. Lettering as per IRCA Part III Rule 2.4 by stenciling the relevant figures.

Incorrect. Keep wagon clean, proper cleaning and painting procedure, ensure well-fitted surfaces to avoid water pockets, use stainless steel.

Incorrect. Ensure continuous welding without any craters.

Incorrect. Well wagon codes are BWTB (80), MBWT (81), DBKM (82), MBWC (83).

Incorrect. The series will not change with type of wagon; consecutive numbers across types.

Incorrect. S1 = C2+C4+C6+C8+C10; 3S1; S2 = C1+C3+C5+C7+C9; S4 = 3S1+S2; round up to next multiple of 10; check digit = difference.

Incorrect. Report head marking details, make of lock bolt, issues in fitment, probable reasons for failure.

Incorrect. Pre-despatch inspection specified, WTC detailing functional properties, RITES inspection covering properties in RDSO guideline.

Incorrect. Mismatch of holes to be reamed properly to align, gas cutting strictly prohibited.

Incorrect. Collar completely swaged, pintail breaks without fail, extruded portion 2-10 mm, collar on annular groove.

Incorrect. Place pin in drilled hole, place collar onto pin, installation tool engages and pulls pin, tool swages collar onto grooves, pintail breaks off.

Incorrect. RDSO specification no. WD-01-CRF-08 or latest.

Incorrect. BOXNR end wall has SS construction, two end stanchions in three pieces, two middle coping of Hat section 6mm, top coping CRF BOX 100×100×6mm, end sheet 3mm SS.

Incorrect. BOXNR sidewall has 9 stanchions of 6mm CRF hat section, 3mm SS sheet, 2127mm height, no middle coping, top coping BOX 100×100×6mm, huck bolted with sole bar single row.

Incorrect. Given welding repairs only in specially equipped depots after thorough steam cleaning and testing for no inflammable/explosive vapors.

Incorrect. Don't use patches less thickness than original, patch existing patches, build up perforations, run empty wagons with open doors, run loaded wagons without secured doors.

Incorrect. Door hooks must be intact and placed so they engage with door eye in open position.

Incorrect. Ensure pitch of rivets conforms to original pitch in structural members.

Incorrect. Private party wagons use code 26.

Incorrect. Traffic stock uses 1000 to 9999, after 9999 restarts from 1000.

Incorrect. Departmental stock uses 0001 to 0999, after 0999 restarts from 0001.

Incorrect. South Central Railway code is 09.

Incorrect. Next multiple of 10 after 43 is 50, so 50-43 = 7.

Incorrect. Add evens (S1), multiply by 3, add odds (S2), add to get S4, round up to next multiple of 10, check digit is number needed to add.

Incorrect. Brake van codes are BVZC (85), BVZI (86), BVCM (87).

Incorrect. Codes include BOXN, BOXNHA, BOXNHS, BOXNCR, BOXNLW, BOXNB, BOXNF, BOXNG, BOY, BOST, BOXNAL, BOSTHS, BOXN-HL.

Incorrect. The structure is Type (2), Railway (2), Year (2), Individual (4), Check digit (1).

Incorrect. Check for failed/missing lock bolts, don't replace with bolt-nut, specify pre-dispatch inspection, report failures to RDSO.

Incorrect. Place pin, place collar, install with tool, ensure collar swaged, pintail breaks, extruded portion 2-10 mm.

Incorrect. Differences include material, number and type of stanchions, top coping type, and sheet thickness.

Incorrect. Differences include material, number of stanchions, sheet thickness, inside height, coping provision, top coping type, and riveting method.

Incorrect. Effectively earth the member or component to be welded to prevent return current through CTRB.

Incorrect. Ensure content is not inflammable; if inflammable, transship before welding.

Incorrect. Complete painting before assembly including surfaces that will become inaccessible.

Incorrect. Advantages include lower weight, no chance of hitting fixed structure, secured locking from non-platform line, ease of loading/unloading, and ease of maintenance.

Incorrect. Features include 2-part sliding door, 3 sets of rollers, bottom support, top pivoted with lateral movement, and transfer balls at bottom.

Incorrect. Diameter increased, profile changed from flat to convex, and number increased from three to four with specific placement.

Incorrect. The purpose was to eliminate gap between side wall and door at hinge, improving door securing and eliminating door hitting and rainwater seepage.

Incorrect. Door repairs require replacing worn hinges, straightening bent stanchions, replacing corroded crib angles, and applying graphite grease.

Incorrect. Mark "WT" with station code and date on left-hand bottom corner of both sides.

Incorrect. Both conditions require action: holes more than 6 mm diameter and irregular openings more than 25 mm length and 3 mm width.

Incorrect. Tested at POH and for empty wagons in sick lines before monsoon with sealing compound application.

Incorrect. Weld both pieces and apply a stiffener angle prepared from 6 mm plate, welding it all around.

Incorrect. Couple two wagons with bulged ends together and apply hydraulic jack between them with suitable packing.

Incorrect. Either cut floor plates by 8 mm for fitting new patch, or make patch rest over floor plate.

Incorrect. Panel patches require proper surface cleaning and painting with two coats of zinc chromate primer before storage.

Incorrect. Corrosion is caused by residues from corrosive consignments, spillage of corrosive fluids, and escape of corrosive vapors.

Incorrect. Flexible side stanchions are attached to sole bar through brackets, with retractable anchoring locks for containers.

Incorrect. Covered wagon ends include end panels, stanchions, copings, and ventilators at the upper end.

Incorrect. Open wagons have two locking bolts per door in addition to chainless cotter to prevent slipping during tippling.