Knowledge Booster: NAIR Edition (28 Mar 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. Which module deals with management of crew & guards?
- A) TMS
- B) CMS
- C) RMS
- D) YMS
Correct Answer: CMS
Explanation: CMS (Crew Management System) is the digital platform used for the booking and rest management of train staff.
Q2. For booking of special trains on Full Tariff Rates (FTR) approach?
- A) Zonal Railway HQ
- B) Divisional Railway HQ
- C) IRCTC
- D) Railway Board
Correct Answer: IRCTC
Explanation: The Indian Railway Catering and Tourism Corporation (IRCTC) serves as the single-window agency for booking special charter trains.
Q3. The brake feel test is done by Loco Pilot at the speed of Kmph.
- A) 50
- B) 40
- C) 15
- D) None of these
Correct Answer: Deleted
Explanation: The question regarding the exact speed for performing a brake feel test was removed[cite: 4214, 4239].
Q4. Which of the following is known as electronic interlocking?
- A) Route Relay Interlocking
- B) Panel Interlocking
- C) Solid State Interlocking
- D) None of these
Correct Answer: Solid State Interlocking
Explanation: Solid State Interlocking (SSI) uses microprocessors to manage yard safety and is the modern form of electronic interlocking[cite: 2279, 2293].
Q5. Target for committee to submit inquiry report to GM for GM-ordered enquiries?
- A) D+10
- B) D+15
- C) D+21
- D) D+7
Correct Answer: D+10
Explanation: For serious accidents ordered by the GM, the enquiry committee must submit its report within 10 days.
Q6. Total Goods train KM divided by total Goods train engine hrs gives?
- A) Average speed of Goods train
- B) Engine KM per Goods train
- C) Goods train KM per engine
- D) None of the given options
Correct Answer: Average speed of Goods train
Explanation: This formula calculates the statistical average speed of freight trains, including all detentions while the engine is attached.
Q7. 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: None of these
Explanation: Divisional Railway Managers (DRMs) have the delegated authority to authorize traffic blocks lasting up to 4 hours for maintenance[cite: 3547, 3549, 3568].
Q8. Formula of Loco outage is?
- A) Total engine hours from shed/24
- B) Engine hours for traffic use/12
- C) Total engine hours from shed/12
- D) Engine hours for traffic use/24
Correct Answer: Engine hours for traffic use/24
Explanation: Loco outage is calculated by taking the total hours locomotives were available for traffic and dividing by 24 hours[cite: 3668, 3676, 3688].
Q9. Point indicator shows what light at night when set for straight line?
- A) Green
- B) Red
- C) White
- D) No light
Correct Answer: White
Explanation: A white light on a point indicator at night confirms that the points are set and locked for the straight/main line.
Q10. Management of maintenance blocks is one of the core functionalities of"
- A) COA
- B) NTES
- C) COIS
- D) RMS
Correct Answer: COA
Explanation: The Control Office Application (COA) is the primary tool used by controllers to plan and manage engineering maintenance blocks[cite: 1841, 1855].
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