Knowledge Booster: NAIR Edition (03 Jun 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. Material trains Track Maintenance Trains Ballast trains and Relief Trains are classified under
- A) Special trains
- B) Shunting Trains
- C) Departmental Trains
- D) Mixed Trains
Correct Answer: Departmental Trains
Explanation: Trains used for internal railway maintenance, engineering work, and relief operations are categorized as departmental[cite: 1571, 1587].
Q2. Which commodity is permitted in Ro-Ro service?
- A) Coal & Coke
- B) Iron Ore
- C) Military Traffic
- D) Foodgrain
Correct Answer: Foodgrain
Explanation: Roll-on Roll-off (Ro-Ro) services are primarily used for trucks carrying light commercial goods like foodgrains.
Q3. 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
Q4. Speed of first train during temporary single working on double line?
- A) 50 KMPH
- B) 25 KMPH
- C) 15 KMPH
- D) Normal speed
Correct Answer: 25 KMPH
Explanation: For safety, the first train to enter a section under temporary single-line working is restricted to 25 KMPH.
Q5. Under which Plan Head is station redevelopment being done under the Amrit Bharat Station Scheme?
- A) Plan Head 16
- B) Plan Head 17
- C) Plan Head 33
- D) Plan Head 53
Correct Answer: Plan Head 53
Explanation: Plan Head 53 (PH-53) is the designated budget head for passenger amenities and station redevelopment[cite: 2296, 2307].
Q6. What is the gross clearance of 'B' class ODC?
- A) Less than 6 inches
- B) 6 inches or more but less than 9 inches
- C) 9 inches or more
- D) None of these
Correct Answer: 6 inches or more but less than 9 inches
Explanation: B-class Over Dimensional Consignments are defined by a specific vertical or lateral clearance between 6 and 9 inches[cite: 3798, 3802, 3821].
Q7. CMS has been introduced in the crew lobbies to provide?
- A) Optimum and effective utilization of crew
- B) Monitoring of training of staff
- C) Monitoring of 10 hours duty & HOER
- D) All of the given options
Correct Answer: All of the given options
Explanation: The Crew Management System (CMS) automates crew booking, tracks rest periods, training requirements, and ensures compliance with labor laws.
Q8. The maximum speed of a train in a double line section shall be restricted to KMPH during dense fog in automatic area.
- A) 15 KMPH
- B) 10 KMPH
- C) 30 KMPH
- D) None of these
Correct Answer: Deleted
Explanation: The specific speed limit for automatic territory in fog was removed from the official answer key[cite: 4054, 4071].
Q9. Which register is not maintained by Section Controllers?
- A) Train Ordering Book
- B) Load Register
- C) Interchange Register
- D) Engine Book
Correct Answer: Deleted
Explanation: The question regarding specific registers maintained by the section controller was deleted from this exam[cite: 3016, 3034].
Q10. Which light of hand signal will be used by guard in night to inform the loco pilot at the time of train parting?
- A) Red
- B) Green
- C) White
- D) None of these
Correct Answer: White
Explanation: Guards use a white light waved in a specific manner to signal a train parting to the loco pilot at night[cite: 4610, 4616, 4633].
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