Knowledge Booster: NAIR Edition (14 Aug 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. All India Trains at a Glance is prepared by?
- A) Zonal Railway
- B) CRIS
- C) Railway Board
- D) RDSO
Correct Answer: Railway Board
Explanation: The official All India public timetable, 'Trains at a Glance', is compiled and published by the Railway Board.
Q2. 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]
Q3. Traffic facility work comes under which Plan Head?
- A) PH-16
- B) PH-17
- C) PH-53
- D) PH-13
Correct Answer: PH-16
Explanation: Plan Head 16 (PH-16) is specifically dedicated to budget allocations for traffic facility and yard improvements[cite: 1890, 1903].
Q4. What is Adequate distance beyond first stop signal for granting line clear in case of two aspect lower quadrant signaling?
- A) 180m
- B) 580m
- C) 240m
- D) 400m
Correct Answer: 400m
Explanation: In two-aspect signaling, a 400m 'overlap' distance is required to grant permission for another train. [cite: 241, 254]
Q5. Commissioner of Railway Safety means CCRS or CRS appointed under section of the Railways Act 1989
- A) 4
- B) 3
- C) 5
- D) 8
Correct Answer: 5
Explanation: Section 5 of the 1989 Railways Act defines the appointment of the Safety Commissioners. [cite: 89, 103]
Q6. Collision Train Accidents will be termed as consequential train Accidents in categories."
- A) A1 to A2
- B) A1 to A3
- C) A1 to A4
- D) None of these
Correct Answer: A1 to A4
Explanation: Consequential accidents involving collisions are categorized under groups A1 to A4. [cite: 305, 320]
Q7. The competency certificate of Gateman shall be valid for how many years?
- A) 02 years
- B) 03 years
- C) 04 years
- D) None of the given options
Correct Answer: 03 years
Explanation: Gatemen at level crossings must have their technical competency re-validated every 3 years.
Q8. When is 'Green Notice' issued?
- A) Consequential train accident
- B) Temporary single line working
- C) Non-Interlocked working
- D) None of the above
Correct Answer: Non-Interlocked working
Explanation: A Green Notice is an official operational warning issued when a station is working under non-interlocked conditions[cite: 2428, 2442].
Q9. Railway servants are debarred from taking alcohol/drugs within how many hours before duty?
- A) 06 hrs
- B) 08 hrs
- C) 10 hrs
- D) 12 hrs
Correct Answer: 08 hrs
Explanation: Safety rules strictly prohibit the consumption of intoxicants within 8 hours of the commencement of a duty shift.
Q10. A Shunt Signal may be placed on a post by itself or below a stop signal other than the signal of station."
- A) Last Stop
- B) First Stop
- C) 1 and 2 both
- D) None of the above
Correct Answer: Deleted
Explanation: This question on specific shunt signal placement was removed from the key. [cite: 683, 696]
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