Knowledge Booster: NAIR Edition (29 Jul 2026)
Welcome to today's NAIR Knowledge Booster! We've handpicked 10 essential questions from our database to help you sharpen your skills. Dive in and test your knowledge!
Q1. SATSANG means."
- A) Software Aided Train Scheduling and Network Governance
- B) Software Aided Train Scheduling and Navigation Governance
- C) Scheduling and Train Software Aided Navigation Global
- D) Station And Train Scheduling Aided Navigation Governance
Correct Answer: Software Aided Train Scheduling and Network Governance
Explanation: SATSANG is the system used for high-level network and schedule governance. [cite: 798, 815]
Q2. SFOORTI' App is used for?
- A) Monitoring and managing freight business
- B) Generation of RR
- C) Monitoring punctuality of Express trains
- D) None of the given options
Correct Answer: Monitoring and managing freight business
Explanation: SFOORTI is a GIS-based app used by management to track freight trains and optimize commodity flows across the network.
Q3. TVU of special class LC gate shall be
- A) Greater than 40
- B) 0
- C) Greater than 45
- D) 0
Correct Answer: Greater than 50
Explanation: 0
Q4. Distant Signal is a?
- A) Stop Signal
- B) Permissive Signal
- C) Subsidiary Signal
- D) Repeating Signal
Correct Answer: Permissive Signal
Explanation: A Distant signal provides advance information about the aspect of the next stop signal and does not require the train to stop at its location.
Q5. The powers to grant traffic blocks upto hours have been given to DRM.
- A) 3
- B) 4
- C) Full powers
- D) None of these
Correct Answer: 4
Explanation: Divisional Railway Managers (DRMs) have the delegated authority to authorize traffic blocks lasting up to 4 hours for maintenanc
Q6. In case of defective speedometer Loco pilot will reduce speed
- A) Can take decision of his own
- B) 20%
- C) 30%
- D) 10%
Correct Answer: Deleted
Explanation: The question regarding specific speed reduction for faulty speedometers was removed. [cite: 182, 193]
Q7. What equipment is NOT a part of trolley
- A) lorry
- B) or motor trolley as prescribed by the Railway Administration?
- C) Copy of the Working Time Table with correction slips and appendices.
- D) Copy of the SWR with correction slips and appendices.
Correct Answer: Two hand signal lamps
Explanation: Two red and two green hand signal flags
Q8. The Bell code beats for the signalling of trains to 'Stop and Examine' is"
- A) Only Six
- B) Six Pause One
- C) Six Pause Two
- D) Six Pause Three
Correct Answer: Six Pause One
Explanation: The 6-1 bell beat is used between stations to flag potential defects in passing trains. [cite: 1332, 1345]
Q9. Fog signal post is placed at from First stop signal."
- A) 120 m
- B) 180 m
- C) 270 m
- D) 400 m
Correct Answer: 270 m
Explanation: The fog signal post is positioned 270 meters in front of the Home signal. [cite: 1279, 1290]
Q10. What is the maximum permitted speed of a train in foggy weather conditions?
- A) 60 km
- B) 75 km
- C) 50 km
- D) 45 km
Correct Answer: Deleted
Explanation: This question regarding fog speed limits was removed from the official key[cite: 2267, 2278].
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