RRB Technician CEN 02/2026 Recruitment (6557 Post)

Q1. A candidate has already appeared for the Stage I exam under CEN 02/2026. If they belong to the General category, what refund can they expect?

• No refund is given once the exam is attempted
• Rs. 400/- refund, since UR/OBC/EWS candidates get this amount back after appearing
• Full fee of Rs. 500/- is refunded
• Rs. 250/- refund, same as SC/ST candidates

Q2. Which qualification pathway is valid for Technician Grade-I Signal?

• Class 10th pass with ITI certificate only
• B.Sc in Physics/Electronics/Computer Science/IT/Instrumentation, or BE/B.Tech/Diploma in a related stream
• Any graduate degree regardless of subject
• Only a Diploma in Civil Engineering

Q3. For Technician Grade-III (Open Line), what combination of qualifications is required?

• Class 10th pass along with an ITI Certificate (NCVT/SCVT) in a related trade
• A Bachelor's degree in any engineering stream
• Only a Class 12th pass certificate
• A diploma in Instrumentation only, no ITI needed

Q4. How many days before the exam is the admit card typically released for RRB Technician CEN 02/2026?

• 10 days before
• 4 days before
• On the day of the exam
• 15 days before

Q5. What is the maximum age limit for Technician Grade-I Signal as on 01/07/2026?

• 30 years
• 33 years
• 35 years
• 28 years

Q6. In a signalling circuit, which component is primarily responsible for controlling current flow in one direction only?

• Resistor
• Diode
• Capacitor
• Inductor

Q7. What does the term "rectification" refer to in electronics, a concept relevant to Signal Technician trade knowledge?

• Converting DC into AC
• Converting AC into DC
• Amplifying a weak signal
• Reducing voltage in a circuit

Q8. An ITI Fitter trade candidate is asked which measuring tool gives the most precise reading for small linear dimensions. Which is correct?

• Steel ruler
• Vernier caliper
• Measuring tape
• Try square

Q9. Which trade under NCVT deals specifically with the maintenance and repair of electrical machines and wiring systems?

• Fitter
• Electrician
• Turner
• Welder

Q10. A candidate paid the exam fee through e-Challan. Which of these payment channels is also permitted as per this notification?

• Cheque only
• Debit card, credit card, or net banking
• Cash deposit only at railway stations
• UPI is the only accepted mode

Q11. Which unit measures electrical resistance, a concept tested heavily in the Signal Technician technical paper?

• Ampere
• Volt
• Ohm
• Watt

Q12. As per the notification, what happens if a candidate fails to pay the application fee?

• The form is auto-approved after 24 hours
• The form remains incomplete and is not treated as submitted
• The candidate can pay later at the exam center
• A late fee is automatically added

Q13. A Turner trade candidate is working on a lathe machine. Which tool is used to hold and rotate the workpiece?

• Vice
• Chuck
• Hacksaw
• File

Q14. Which gas combination is commonly used in the welding trade for cutting and joining metals, relevant to Grade-III technical trades?

• Nitrogen and Hydrogen
• Oxygen and Acetylene
• Helium and Argon
• Carbon dioxide and Nitrogen

Q15. A minimum age of 18 years applies to both Technician posts under this CEN. Why is this age calculated "as on 01/07/2026" specifically?

• It's the date the exam will be conducted
• It's the reference date fixed by RRB for calculating age eligibility for this notification
• It's the last date of fee payment
• It has no significance, just a formality

Q16. Which instrument would an Electrician trade candidate use to measure current flowing through a circuit?

• Voltmeter
• Ammeter
• Barometer
• Thermometer

Q17. What is the significance of the exam city intimation being sent 10 days before the exam?

• It confirms the candidate's final selection
• It allows candidates to know their exam city in advance so they can plan travel and stay
• It replaces the need for an admit card
• It is only sent to SC/ST candidates

Q18. In basic electronics relevant to the Signal Technician syllabus, what does a capacitor primarily do in a circuit?

• Converts AC to DC
• Stores and releases electrical energy
• Generates a magnetic field only
• Amplifies sound signals

Q19. A Grade-III candidate holds an ITI certificate from SCVT instead of NCVT. As per this notification, is this acceptable?

• Yes, the notification accepts ITI Certificate from either NCVT or SCVT in a related trade
• No, only NCVT certificates are valid
• Only if the candidate also has a diploma
• SCVT certificates are valid only for Grade-I posts

Q20. Which safety equipment is mandatory while carrying out welding or fitting work, a common technical/safety question in RRB trade papers?

• Regular sunglasses
• Safety goggles and protective gloves
• A raincoat
• Ordinary cotton gloves without insulation

Q21. What is the relationship between voltage, current, and resistance according to Ohm's Law, a core concept for Signal Technician candidates?

• Voltage = Current x Resistance squared
• Voltage = Current x Resistance
• Voltage = Current divided by Resistance
• Voltage has no relation to Resistance

Q22. Which material property is most important when selecting cable insulation in railway signalling systems?

• High electrical conductivity
• High resistance to electrical current (good insulating property)
• Magnetic property
• Low melting point

Q23. If a Grade-III candidate's category is SC/ST, what application fee applies to them under this CEN?

• Rs. 500/-
• Rs. 250/-
• No fee at all
• Rs. 100/-

Q24. In a Fitter/Machinist trade context, which tool is used to check whether a surface is perfectly flat?

• Hacksaw
• Surface plate and spirit level
• Screwdriver
• Wrench

Q25. A candidate has both a B.Sc in Electronics and a Diploma in Instrumentation. Which post are they most likely eligible for under this CEN?

• Technician Grade-III only, since higher qualifications are not counted
• Technician Grade-I Signal, since this qualification matches its eligibility criteria
• Neither post, as this combination isn't recognized
• Only clerical posts, not technical ones