Most Repeated Questions in RRB Technician Exam, Check Details

Questions in RRB Technician Exams: Getting a railway job requires not just hard work, but smart work. If you’re preparing for the Railway Recruitment Board (RRB) Technician exam, the sheer volume of the syllabus can feel overwhelming. The key is recognising patterns. Over the years (2016 to 2024), certain questions in RRB Technician exam papers reappear, either identical or in a slightly modified format. This article will provide you with the most repeated RRB Technician exam questions, along with a free PDF.

Download Most Repeated Questions in RRB Technician PDF

Given below is a PDF for the most repeated questions form RRB Technician Exam. Candidates must carefully go through these questions to have an idea about the upcoming exam in 2026.

Practice the RRB NTPC Reasoning Questions (Live)

Given below are the most repeated RRB Technician exam questions for practice. Attempt them live and check your score as per the real exam marking scheme. You will get +1 for every correct answer, -1/3 for every wrong answer.

Q.1 Calculate the maximum velocity of electrons in a CRT having a cathode–anode voltage of 250 V. Assume electrons leave the cathode with zero velocity. (Charge of electron = 1.6 × 10⁻¹⁹ C, mass of electron = 9.1 × 10⁻³¹ kg)

1. 6.2 × 10⁶ m/s
2. 8.4 × 10⁶ m/s
3. 9.4 × 10⁶ m/s
4. 3.1 × 10⁶ m/s
   Ans: 3. 9.4 × 10⁶ m/s

Q.2 In a series circuit, if one of the resistors R₂ is removed, the total resistance of the circuit will

1. Increase
2. Decrease
3. Remain the same
4. Become zero
   Ans: 2. Decrease

Q.3 What is the power factor for a purely resistive AC circuit?

1. 0
2. –1
3. 0.5
4. 1
   Ans: 4. 1

Q.4 When a p–n junction diode is forward biased, which of the following statements is correct?

1. Depletion layer gets wider
2. Depletion layer gets narrower
3. Depletion layer remains unchanged
4. Depletion layer disappears completely
   Ans: 2. Depletion layer gets narrower

Q.5 In an extrinsic (N-type) semiconductor, the Fermi energy level

1. Lies midway between the conduction band and valence band
2. Lies below the valence band
3. Lies closer to the conduction band
4. Lies above the conduction band
   Ans: 3. Lies closer to the conduction band

Q.6 At 25°C, the barrier potential for silicon is approximately equal to

1. 0.3 V
2. 0.1 V
3. 1.1 V
4. 0.7 V
   Ans: 4. 0.7 V

Q.7 Which of the following materials is generally NOT used for electrical transmission lines due to high resistivity?

1. Copper
2. Aluminium
3. Gold
4. Steel-reinforced aluminium
   Ans: 3. Gold

Q.8 What can be inferred about the magnetic field lines outside a solenoid?

1. They are parallel straight lines
2. They are in the form of complete loops
3. They are very strong
4. They are uniform
   Ans: 2. They are in the form of complete loops

Q.9 When does the force acting on a current-carrying conductor placed in a magnetic field become zero?

1. When the direction of current is perpendicular to the magnetic field
2. When the conductor is moving
3. When the direction of current is parallel to the magnetic field
4. When the current is maximum
   Ans: 3. When the direction of current is parallel to the magnetic field

Q.10 A mass of 0.010 kg is measured using a scale with an uncertainty of 0.0002 kg. What is the maximum possible percentage uncertainty if the quantity is proportional to m³?

1. 2%
2. 6%
3. 4%
4. 8%
   Ans: 2. 6%

Q.11 Which factor does NOT affect the magnitude of the induced EMF in a rotating coil in a magnetic field?

1. Number of turns
2. Area of the coil
3. Resistance of the coil
4. Speed of rotation
   Ans: 3. Resistance of the coil

Q.12 In Faraday’s experiment, if the magnetic flux through a loop decreases linearly with time, the induced EMF is

1. Zero
2. Proportional to the square of time
3. Constant
4. Inversely proportional to time
   Ans: 3. Constant

Q.13 Which statement is true regarding Faraday’s Law of Electromagnetic Induction?

1. Induced EMF is directly proportional to the rate of change of magnetic flux
2. Induced EMF is inversely proportional to the rate of change of magnetic flux
3. Induced EMF is independent of the rate of change of magnetic flux
4. Induced EMF depends only on magnetic field strength
   Ans: 1. Induced EMF is directly proportional to the rate of change of magnetic flux

Q.14 A copper ring is placed in a region where the magnetic field is increasing. According to Lenz’s Law, the induced current will

1. Aid the increasing flux
2. Oppose the increasing flux
3. Produce no magnetic field
4. Produce a perpendicular magnetic field
   Ans: 2. Oppose the increasing flux

Q.15 The magnetic field inside a long solenoid at a point midway from both ends is

1. Zero
2. Non-uniform
3. Strongest at the centre
4. Uniform
   Ans: 4. Uniform

Q.16 Which statement correctly describes the energy band diagram for insulators?

1. Narrow forbidden gap
2. No forbidden gap
3. Very wide forbidden gap (>3 eV)
4. Overlapping bands
   Ans: 3. Very wide forbidden gap (>3 eV)

Q.17 Which factor does NOT affect the resistivity of a material?

1. Temperature
2. Length of the conductor
3. Material type
4. Atomic structure
   Ans: 2. Length of the conductor

Q.18 Two resistors R₁ and R₂ are connected in parallel. If current through R₁ is three times that through R₂, the ratio R₁ : R₂ is

1. 3 : 1
2. 1 : 3
3. 9 : 1
4. 1 : 9
   Ans: 2. 1 : 3

Q.19 A thermistor with a negative temperature coefficient (NTC) shows which behaviour as temperature increases?

1. Resistance increases
2. Resistance remains constant
3. Resistance decreases
4. Resistance first increases then decreases
   Ans: 3. Resistance decreases

Q.20 The region between two threshold voltages in a dead-zone circuit where output is zero is known as

1. Saturation zone
2. Active zone
3. Cut-off zone
4. Dead zone
   Ans: 4. Dead zone

Q.21 The correct expression for the resonant frequency of an LC circuit is

1. f = 2π√(LC)
2. f = 1 / (2π√(LC))
3. f = 1 / (2πLC)
4. f = 2π / √LC
   Ans: 2. f = 1 / (2π√(LC))

Q.22 The range of an electrostatic voltmeter can be extended with the help of

1. Shunt resistance
2. Current transformer
3. Capacitance potential divider
4. Resistance potential divider
   Ans: 4. Resistance potential divider

Q.23 In a half-wave rectifier, the approximate ripple factor is

1. 0.48
2. 1.21
3. 0.81
4. 2.00
   Ans: 2. 1.21

Q.24 Which statement about a piezoelectric transducer is correct?

1. It can only measure static displacement
2. It can only measure dynamic displacement
3. It cannot measure displacement
4. It can measure both static and dynamic displacement
   Ans: 2. It can only measure dynamic displacement

Q.25 The EMF of a thermocouple is approximately a _____ function of the temperature difference

1. Exponential
2. Logarithmic
3. Hyperbolic
4. Linear
   Ans: 4. Linear

Q.26 The correct relationship between electric field (E), potential difference (V), and distance (d) is

1. E = V × d
2. E = V / d
3. E = d / V
4. E = V² / d
   Ans: 2. E = V / d

Q.27 A machine performs work W in time t. If its efficiency is doubled while doing the same work, the time taken will be

1. t / 2
2. 2t
3. t
4. t / 4
   Ans: 1. t / 2

Q.28 What is the output of a NOR gate when A = 1 and B = 0?

1. 1
2. 0
3. A
4. B
   Ans: 2. 0

Q.29 In a full-wave bridge rectifier, the number of diodes used is

1. 1
2. 2
3. 3
4. 4
   Ans: 4. 4

Q.30 The SI unit of magnetic flux density (B) is

1. Weber (Wb)
2. Tesla (T)
3. Henry (H)
4. Farad (F)
   Ans: 2. Tesla (T)

What is the RRB Technician Selection Process?

The RRB Technician Selection Process consists of major stages like computer based test, document verification and medical examination.

Stage	Details
Computer Based Test	This is the first stage in the recruitment process where candidates skills are evaluated in an online test consisting of subjects like General Awareness, General Intelligence and Reasoning, Basics of Computers and Applications, Mathematics, Basic Science and Engineering.
Document Verification	Candidates who qualify for the CBT test will have to submit their documents before the board. The board will check the authenticity of each of the documents.
Medical Examination	This is the final stage in the recruitment process of technician posts. Candidates will be examined by a medical test to determine whether they are physically and medically fit to perform the duties of the technician post.

What is the RRB Technician Exam Pattern 2026?

The RRB Technician Exam Pattern consists of five major subjects. The exam is conducted for 100 marks. Given below are the details:

Subject	Question	Marks
General Awareness	10	10
General Intelligence & Reasoning	15	15
Basics of Computers and Applications	20	20
Mathematics	20	20
Basic Science & Engineering	35	35
Total	100	100

RRB Technician Grade 3 Exam Pattern 2026

The Grade 3 exam pattern contains sections like General Awareness, General Intelligence & Reasoning, Mathematics, and General Science. The details are tabulated below:

Subject	Question	Marks
General Awareness	10	10
General Intelligence & Reasoning	25	25
Mathematics	25	25
General Science	40	40
Total	100	100

FAQs

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