SWR, LWR/CWR, welding, USFD & rail fractures — questions with answers

Q1.In SWR track, the ballast shoulder on the outside of curves sharper than 875 m radius is increased to ______.

1. 400 mm
2. 350 mm
3. 450 mm
4. 550 mm

Q2.Indian railways have been divided into _____ number of Rail temperature zones.

1. 3
2. 4
3. 6
4. 9

Q3.LWR with 60 kg rail on PSC sleeper with 1660 Sleeper Density, Limits of sharpest curvature, associated with steepest gradient for Zone I, II &III is ______________

1. 6.50 with 1 in 100
2. 60 with 1 in 80
3. 50 with 1 in 100
4. 50 with 1 in 65

Q4.When a rail fracture occurred in LWR track, immediate work to be done is ___

1. impose SR
2. replace Rail
3. inform higher authority
4. protect the track

Q5.Action to be taken in case any flaw in USFD testing is classified as IMR/IMRW is

1. Flawed portion should be replaced with a sound tested rail within 3 days
2. Clamped Joggled Fish plating should be done within 3 days
3. Impose SR
4. keep a watch

Q6.In LWR/CWR at no time, not more than ______ sleepers spaces in a continuous stretch shall be opened for manual maintenance

1. 20
2. 30
3. 50
4. 100

Q7.Which type of sleeper is described as best suited for LWR/CWR track?

1. Wooden
2. CST-9
3. Steel trough
4. PSC concrete

Q8.While recording temperature at site during carrying out maintenance works, if the temperature shows in yellow zone on the rail thermometer, then action to be taken is

1. Carry regular maintenance works
2. Stop doing regular maintenance works & close the empty galas
3. Introduce Hot Weather Patrolling
4. None of the above

Q9.Renewal of fastenings in LWR requiring lifting of rail shall be carried out under the supervision of at least____________

1. Mate
2. Keyman
3. Gangman
4. None of above

Q10.Provisional Competency Certificate for TW-1 course shall be valid for executing _____ or ________ Whichever is earlier.

1. 50 joints , 3 months
2. 100 joints , 6 months
3. 150 joints , 6 months
4. 100 joints , 3 months

Q11.New rails to be welded shall confirm to the tolerances stipulated in the specification _____________

1. IRS-T-12
2. RB
3. UIC
4. RDSO

Q12.Failure code for head, surface, breaking out running surface(scabbing) is _____

1. 2211
2. 2212
3. 2221
4. 2222

Q13.A welded rail that contracts and expands throughout its length, due to temperature variation is called______________

1. standard rail
2. SWR
3. LWR
4. CWR

Q14.Two rail ends after lateral alignment for AT Welding when checked with one meter straight edge at rail ends shall be

1. ± 0.5 mm
2. ± 0.6 mm
3. ± 0.7 mm
4. ± 0.8 mm

Q15.In LWR/CWR track, sleeper density is expressed as ______.

1. Number of sleepers per km
2. M+4, M+5 etc.
3. Sleepers per rail length
4. Sleeper spacing in mm