Rail Civil Engineering Department (Karmayogi) Question & Answare
01) Civil Engineering Department in Indian Railways
| ক্র. | QUESTION | ANSWARE |
|---|---|---|
| 1 | Who is responsible for the overall planning and execution of civil engineering works in Indian Railways? | Chief Engineer |
| 2 | The Civil Engineering department in Railways primarily deals with? | Design, construction, and maintenance of railway infrastructure |
| 3 | The standard rail section used in Indian broad gauge railway track is? | 60 kg/m |
| 4 | The sleepers used in modern railway tracks are primarily made of? | Concrete |
| 5 | In Ghat sections, which of the following methods is used to control the train movement? | Assisted banking engines |
| 6 | What is the purpose of expansion joints in railway bridges? | To accommodate thermal expansion and contraction |
| 7 | In Indian Railways, the maximum superelevation (cant) provided in broad gauge tracks is? | 165 mm |
| 8 | The lead of a turnout is defined as? | Distance from the heel of switch to the toe of the crossing |
| 9 | How is “Key Man Daily Patrolling” conducted? | On foot, by the keyman daily or once every 2 days, based on the section |
| 10 | A Scissor Crossover is used in railway tracks to? | Allow two parallel tracks to cross each other |
| 11 | What is the main advantage of using Gantt Charts in project management? | They visually display project timelines and task dependencies |
| 12 | Over Dimensional Consignments require special clearance due to? | Their larger dimensions affecting train movement |
| 13 | What is the maximum allowable cant deficiency in broad gauge tracks? | 100 mm |
| 14 | The purpose of ‘Patrolling Register’ in track maintenance is? | To record track inspections and defects observed |
| 15 | Which type of level crossing is the safest for high-speed railway routes? | Grade-separated crossing (Overbridge or Underpass) |
| 16 | Ultrasonic rail flaw detection is used for? | Detecting internal defects in rails |
| 17 | What is the function of a ‘Lifting Barrier’ in level crossings? | To control vehicle movement at crossings |
| 18 | Which of the following is a preventive maintenance practice for railway tracks? | Spot tamping |
| 19 | The type of crossing in which both the mainline and turnout curve in opposite directions is called? | Curved crossing |
| 20 | The minimum vertical clearance for electrified railway tracks is? | 5.8 meters |
| 21 | Who is responsible for ensuring track safety before granting CRS approval? | Commissioner of Railway Safety (CRS) |
| 22 | What is the main challenge in transporting Over Dimensional Consignment (ODC) by rail? | Compatibility with track dimensions and clearances |
| 23 | The Critical Path in a project schedule determines? | The shortest possible project duration |
02.Overview of Infrastructure in Civil Engineering
| Super elevation or cant is the difference in height between inner and outer rails on curves. | True |
| ____________ is the steepest Gradient which exists in a particular section. Steeper the gradient, larger tractive effort required to pull a train. | Ruling Gradient |
| The main components of track are rails, sleepers, fastenings___________and formation. | Fishplate |
| ________ curve is provided at points where two gradients meet and algebraic difference between two grades is equal or more than 0.04 %. | Vertical |
3. Reading Material
Q1 of 5
1.The depth of ballast below the bottom of the sleepers, normally measured under the rail seat, is termed as the__________
Ballast-cushion
Q2 of 5
2.__________ pads are designed to fit under rails to provide mitigation of the dynamic loading of train when passed, improving gross tonnage of rail, reducing the stress and fatigue loading on the sleepers
GRPS
Q3 of 5
3.In __________welding, electric power is applied between the end faces of the rails being joined, the free rail is moved forward at low speed, and flash and arc are generated by the resistance heating and local heating caused by the contact of the rail ends
Butt
Flash-Butt
Q4 of 5
4._________ is the steepest Gradient which exists in a particular section. Steeper the gradient, larger tractive effort required to pull a train.
Ruling Gradient
Q5 of 5
5._________curve is provided at points where two gradients meet and algebraic difference between two grades is equal or more than 0.04 %
Vertical
4 Principal Features Of Permanent Way
| What are the primary components of railway tracks? | ✅ Correct Answer: Rails, Sleepers, Ballast, Fittings and Fastenings, Formation |
| Which type of sleeper is most commonly used in highspeed railways for its stability and low maintenance? | ✅ Correct Answer: RCC sleepers |
| How are the rails in the permanent way joined longitudinally? | ✅ Correct Answer: By welding or using fish plates |
| What is the primary function of ballast in a ballasted track? | ✅ Correct Answer: To support the sleepers and transfer the load to the subgrade |
| What is the function of sleepers in railway tracks? | ✅ Correct Answer: To keep the rails in position and distribute the load to the ballast |
| How should the gradient of the track be to ensure a smooth ride? | ✅ Correct Answer: Uniform and gentle with vertical curves at changes |
| What type of rails is often used for tracks with heavy traffic? | ✅ Correct Answer: Continuously welded rails |
| Why is an accurate gauge important for railway tracks? | ✅ Correct Answer: To support smooth train operations |
| What supports flatbottom steel rails in a ballasted track? | ✅ Correct Answer: Timber or prestressed concrete sleepers |
| What is the role of ballast in a railway track? | ✅ Correct Answer: To provide elasticity, stability, and drainage |
| What constitutes the basic structure of a permanent way? | ✅ Correct Answer: Two parallel rails fastened to sleepers, embedded in ballast over a prepared formation |
| What overall benefits are achieved by adhering to the characteristics of a sound permanent way? | ✅ Correct Answer: Safe, smooth, and efficient transportation with economic efficiency |
| What is the function of fish plates in railway tracks? | ✅ Correct Answer: To join two rails together in both horizontal and vertical planes |
| What does the term ‘Permanent Way’ refer to in early railway construction? | ✅ Correct Answer: A final, stable track installed after temporary tracks |
| What should rails maintain to counteract centrifugal force on curves? | ✅ Correct Answer: Perfect cross levels with proper superelevation |
05) Long welded Rails: The backbone of Modern Tracks
| Q No. | Question | Correct Answer |
|---|---|---|
| 1 | The safe performance of LWR depends on maintaining a balance between | Thermal force (P) and track resistance (R) |
| 2 | Which Indian high-speed project under construction will fully depend on LWRs? | Mumbai to Ahmedabad Bullet Train |
| 3 | The smooth and silent journey on highways is often compared with which railway technology? | Long Welded Rails |
| 4 | Fishplates were used in older track systems to | Connect short rails together |
| 5 | Short Welded Rails (SWR) are generally of what length? | 36 to 39 meters |
| 6 | Which maintenance machine ensures correct ballasted track geometry in LWRs? | Track Tamping Machine |
| 7 | What is eliminated in LWRs that makes train travel smoother? | Joints every 13 meters |
| 8 | In which European country’s railway network does TGV rely on LWRs? | France |
| 9 | In metros, when is track maintenance usually performed? | At night |
| 10 | LWR reduces the number of rail joints, which ultimately reduces | Track maintenance (or) Noise & vibration |
| 11 | Why are expansion joints required in certain locations on LWR track? | To accommodate thermal expansion at bridges/structures |
| 12 | LWR increases safety because it reduces the chances of | Rail fractures at joints |
| 13 | What is eliminated in LWRs that makes train travel smoother? | Joints every 13 meters (corrected) |
| 14 | The temperature at which LWR is stress-free is known as | Stress-Free Temperature (SFT) |
06) The Gauge and Railway Lines
| No. | Question | Correct Answer |
|---|---|---|
| 1 | How does the break of gauge lead to inefficiency in rolling stock usage? | Wagons may have to travel empty to gauge change points, leading to inefficiency |
| 2 | Key advantage of adopting a wider rail gauge for Indian Railways? | Higher speeds and ability to accommodate larger wheels and trains |
| 3 | Primary characteristic of Broad Gauge (1676 mm)? | Supports higher-speed trains and larger capacities |
| 4 | Speed range of Group B broad gauge lines? | Up to 130 km/h |
| 5 | Main objective of the uni-gauge policy (1992)? | To standardize all railway lines to a single broad gauge |
| 6 | Why is broad-gauge classification important? | To optimize rail infrastructure for operational needs and manage maintenance efficiently |
| 7 | Countries using Cape Gauge (1067 mm)? | Africa, Japan, Australia |
| 8 | Major inconvenience to passengers due to break of gauge? | Need to switch trains and change platforms |
| 9 | Reason for introduction of 1000 mm meter gauge in 1871? | To facilitate cheaper railway construction in rural areas |
| 10 | Benefit of adopting a single broad gauge? | No need for passengers/goods to switch trains at gauge-change points |
| 11 | Which country uses Standard Gauge (1435 mm)? | China |
| 12 | Who proposed adoption of 1676 mm gauge? | Mr. W. Simms, Consulting Engineer to the Government of India |
| 13 | Risk associated with trans-shipment at gauge change points? | Goods can be damaged or stolen |
| 14 | Major inconvenience to passengers due to break of gauge? | Need to switch trains and change platforms |
| 15 | Which group of BG lines is designed for high-speed travel? | Group A |
07) Rails Sleepers and Fastenings Pt-I
1.Rails Sleepers and Fastenings Pt-I
| No. | Question | Correct Answer |
|---|---|---|
| 1 | Which type of sleeper is best suited for high-speed trains and long welded rails? | Concrete sleepers |
| 2 | What is the primary purpose of sleepers in railway tracks? | To hold the rails firmly and distribute train weight |
| 3 | Which type of sleepers was traditionally favored for their ability to absorb shocks? | Wooden sleepers |
| 4 | Why are wooden sleepers rarely used today? | They decay quickly and face restrictions on tree cutting |
| 5 | What is the limitation of steel sleepers? | They are unsuitable for track circuits |
2. Rails Sleepers and Fastenings Pt-II
| No. | Question | Correct Answer |
|---|---|---|
| 1 | What is the primary purpose of sleepers in railway tracks? | To hold the rails firmly and distribute train weight |
| 2 | Which type of sleeper is best suited for high-speed trains and long welded rails? | Concrete sleepers |
| 3 | What is the sleeper density for mainline tracks? | 1660 sleepers per km |
| 4 | What material is commonly used to make elastic rail clips (ERC)? | Silico-manganese steel |
| 5 | What is a significant disadvantage of concrete sleepers? | They are heavy and difficult to handle manually |
| 6 | Which type of sleepers was traditionally favored for their ability to absorb shocks? | Wooden sleepers |
| 7 | What material is used to make composite sleepers? | Rigid polyurethane and glass fiber |
| 8 | Which type of sleeper is noted for being eco-friendly and lightweight? | Composite sleepers |
| 9 | What is a key advantage of composite sleepers over traditional ones? | They are resistant to weathering and pest damage |
| 10 | What is a critical requirement for the ballast under sleepers? | To provide a firm bed and ensure proper drainage |
| 11 | What is the primary purpose of elastic rail clips (ERC)? | To secure rails to sleepers |
| 12 | Sleeper density refers to the number of sleepers per kilometer. What factors determine the required density? | Train speed and traffic volume |
| 13 | Why is regular inspection of sleepers important? | To identify and replace damaged sleepers |
| 14 | Why are wooden sleepers rarely used today? | They decay quickly and face restrictions on tree cutting |
| 15 | What is the limitation of steel sleepers? | They are unsuitable for track circuits |
08) Bridges and Tunnels in Indian Railways
Introduction
01) When was the first passenger train in India launched?
ANS- 1853
02) Which was the first railway route in India?
ANS- Mumbai to Thane
——————————————————————————-
2. Bridges and tunnels Pt-I
01) What is the role of bridges in the Indian Railways network?
ANS- All are correct
02) What type of bridge is the Howrah Bridge in Kolkata?
ANS- Cantilever Bridge
3. Bridges and tunnels Pt-II
| No. | Question | Correct Answer |
|---|---|---|
| 1 | When was the first passenger train in India launched? | 1853 |
| 2 | Which was the first railway route in India? | Mumbai to Thane |
| 3 | What is the role of bridges in the Indian Railways network? | All are correct |
| 4 | What type of bridge is the Howrah Bridge in Kolkata? | Cantilever Bridge |
| 5 | Which is the longest railway tunnel in India? | Chenab River Tunnel |
| 6 | What was the main challenge faced during the early construction of railway bridges in India? | All are correct |
| 7 | What is the purpose of tunnels in Indian Railways? | All are correct |
| 8 | The Gotthard Base Tunnel is located in which Indian state? | None (Switzerland) |
| 9 | What type of bridge uses a curved structure to distribute weight? | Arch Bridge |
| 10 | Which bridge crosses the Hooghly River in Kolkata? | Howrah Bridge |
| 11 | What type of bridge is commonly used for exceptionally long spans, such as over wide rivers? | Suspension Bridge |
| 12 | What is a primary consideration in the design of railway bridges in India? | Dynamic loads from trains |
| 13 | Who inspects the substructure of a bridge once a year before the monsoon? | BRI (Bridge Inspector) |
| 14 | What is the length of the Dhola-Sadiya Bridge in Assam? | 9.15 km |
| 15 | What is a key factor for the wear and tear of bridges? | All are correct |
| 16 | What material revolutionized bridge construction in India during the British colonial era? | Steel |
| 17 | Which mountain range posed significant engineering challenges for railway tunnel construction in India? | Himalayas |
| 18 | What material is most commonly used in the construction of beam bridges? | Concrete |
| 19 | Which river does the Dhola-Sadiya Bridge cross? | Brahmaputra |
| 20 | Which river does the Vembanad Rail Bridge in Kerala cross? | Vembanad Lake |
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