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100+ Free UPMSP Radio & Colour TV Technique Practice Questions

Prepare for the Uttar Pradesh UPMSP Intermediate (Class 12) Radio and Colour Television Technique — Code 213 exam with instant access — no signup required.

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2026 Statistics

Key Facts: UPMSP Radio & Colour TV Technique Exam

3h 15m

Duration of UPMSP Class 12 Radio and Colour TV Technique examination

UPMSP Official Syllabus

100 Marks

Total paper weightage for Code 213 subject examination

UP Board Examination Scheme

33%

Minimum passing percentage required in theory exam

UPMSP Regulations

100 MCQs

Practice questions provided in this comprehensive question bank

OpenExamPrep

Master UPMSP Class 12 Radio and Colour Television Technique (Code 213) with 100 verified MCQs covering Semiconductor Devices, AM/FM Superheterodyne Receivers, TV Transmission, PAL Colour Processing, Circuit Diagnostics, and Antenna Systems.

Sample UPMSP Radio & Colour TV Technique Practice Questions

Try these sample questions to test your UPMSP Radio & Colour TV Technique exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the typical barrier potential of a forward-biased silicon PN junction diode at room temperature?
A.0.3 volts
B.0.7 volts
C.1.1 volts
D.2.0 volts
Explanation: Silicon PN junction diodes have a potential barrier of approximately 0.7 V at room temperature (25°C), which must be overcome by forward voltage before significant current flows. Germanium diodes have a lower barrier potential of about 0.3 V.
2In which operating region must a Zener diode be biased to function effectively as a voltage regulator?
A.Forward conduction region
B.Reverse breakdown region
C.Cut-off region
D.Saturation region
Explanation: A Zener diode is specifically designed to operate safely in its reverse breakdown region (Zener or avalanche breakdown). In this region, the voltage across the diode remains virtually constant over a wide range of reverse currents, making it an ideal voltage regulator.
3What is the fundamental relationship between Emitter current (IE), Base current (IB), and Collector current (IC) in a bipolar junction transistor?
A.IE = IC - IB
B.IC = IE + IB
C.IB = IE + IC
D.IE = IB + IC
Explanation: By Kirchhoff's Current Law applied to a BJT, the total current entering or leaving the transistor via the emitter terminal equals the sum of the base current and collector current: IE = IB + IC. Since IB is very small (microamperes), IE is approximately equal to IC.
4If a transistor in Common Emitter (CE) configuration has a common-base current gain (alpha) of 0.98, what is its common-emitter current gain (beta)?
A.49
B.98
C.50
D.0.02
Explanation: The relationship between alpha (α) and beta (β) is given by the formula β = α / (1 - α). Substituting α = 0.98 gives β = 0.98 / (1 - 0.98) = 0.98 / 0.02 = 49.
5How is the drain current (ID) primarily controlled in a Junction Field-Effect Transistor (JFET)?
A.By adjusting the input base current
B.By altering the ambient temperature around the drain terminal
C.By varying the reverse-bias voltage applied to the Gate-Source junction (VGS)
D.By short-circuiting the source and drain terminals
Explanation: A JFET is a voltage-controlled device where the width of the conductive channel (and thus drain current ID) is regulated by varying the reverse bias voltage applied across the Gate-Source PN junction (VGS).
6Which insulating material layer separates the metallic gate terminal from the semiconductor channel in a MOSFET?
A.Aluminum Oxide (Al2O3)
B.Copper Sulfate (CuSO4)
C.Silicon Dioxide (SiO2)
D.Gallium Arsenide (GaAs)
Explanation: In a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET), a thin layer of Silicon Dioxide (SiO2) acts as an electrical insulator between the gate electrode and the semiconductor channel, resulting in input impedance in the gigohm range.
7Why is Voltage Divider Bias (Potential Divider Bias) the most widely used biasing circuit for BJT amplifiers?
A.It makes the operating point (Q-point) independent of transistor current gain (beta) and temperature fluctuations
B.It provides maximum power consumption from the DC supply
C.It eliminates the need for any emitter resistor in the circuit
D.It reverses the polarity of the collector power supply
Explanation: Voltage Divider Bias uses a resistive divider network (R1, R2) and an emitter resistor (RE) to fix the base voltage. This ensures the operating Q-point remains highly stable, virtually independent of variations in transistor beta (β) or temperature changes.
8What is the theoretical maximum collector efficiency of a direct-coupled (series-fed resistive load) Class A power amplifier?
A.50%
B.78.5%
C.25%
D.90%
Explanation: For a direct resistive load Class A amplifier, collector current flows for the entire 360° cycle, yielding a theoretical maximum efficiency of 25%. Transformer-coupled Class A amplifiers achieve up to 50%.
9How is crossover distortion eliminated in a Class B push-pull transistor power amplifier?
A.By applying a slight forward bias to both transistors so they operate in Class AB mode
B.By operating both transistors strictly in the cut-off region
C.By increasing the input signal amplitude beyond the VCC power rail
D.By replacing the NPN transistor with a Zener diode
Explanation: Crossover distortion occurs in pure Class B amplifiers near the zero-crossing point because transistors require ~0.7 V base-emitter threshold to conduct. Applying a slight small forward bias shifts operation to Class AB, ensuring seamless conduction transition between complementary transistors.
10What is the conduction angle of a Class C amplifier, and where is it primarily used?
A.Conduction angle is 360°; used in low-noise audio preamplifiers
B.Conduction angle is 180°; used in Hi-Fi stereo power outputs
C.Conduction angle is 0°; used in passive filter networks
D.Conduction angle is less than 180°; used in tuned RF power amplifiers
Explanation: A Class C amplifier conducts for less than 180° (typically 120° to 150°) of the AC input cycle. Because output current flows in brief pulses, a resonant LC tank circuit reconstructs a smooth sinusoidal RF waveform, achieving high efficiency (>80%) for RF transmitters.

About the UPMSP Radio & Colour TV Technique Exam

The Uttar Pradesh UPMSP Intermediate (Class 12) Radio and Colour Television Technique (Code 213 / रेडियो एवं कलर टेलीविजन तकनीक) examination is a major technical subject in the UP Board vocational stream. It trains students in electronic component testing, superheterodyne radio alignment, video signal decoding, CRT/LED display servicing, oscilloscope waveform diagnostics, and satellite DTH antenna installation.

Assessment

Theory examination compulsory for Class 12 Vocational stream students specializing in Radio and Colour Television Technique under Uttar Pradesh Board. Evaluates semiconductor device fundamentals, superheterodyne radio reception, monochrome and PAL colour TV signal processing, modern flat-panel displays (LCD/LED), receiver fault-finding, and TV antenna/DTH installation.

Time Limit

3 hours 15 minutes (195 minutes)

Passing Score

Minimum 20 of 60 in each written paper, 33% in the 300-mark theory aggregate, and 50% (200 of 400) in the practical examination

Exam Fee

₹600.75 for institutional (regular) Intermediate candidates in the vocational class and ₹806 for private candidates for the 2026 examination. UPMSP charges one registration fee per candidate, not per subject paper. (Uttar Pradesh Madhyamik Shiksha Parishad (UPMSP))

UPMSP Radio & Colour TV Technique Exam Content Outline

17%

Basic Electronics & Semiconductor Devices

PN junction diodes, Zener voltage regulators, BJT transistor configurations, FET/MOSFET operation, biasing methods, Class A/B/C amplifiers, and LC/crystal oscillators.

17%

Radio Receiver Circuits

Superheterodyne receiver principle, RF amplifier, mixer, local oscillator, IF amplifiers (455 kHz AM / 10.7 MHz FM), diode detector, ratio detector, AGC, pre-emphasis, and de-emphasis.

17%

Television Transmission & Reception Principles

Composite video signal, horizontal and vertical scanning (625 lines, 25 frames/s), blanking & sync pulses, vestigial sideband (VSB) video modulation, aspect ratio, and FM sound intercarrier.

17%

Colour TV Signal Processing & Displays

Primary RGB colors, luminance (Y) signal matrix, chrominance signals (U, V), PAL colour system, subcarrier (4.43 MHz), shadow mask CRT, and LED/LCD screen principles with T-CON driver boards.

16%

Troubleshooting & Circuit Testing

Signal tracing and injection techniques, multimeter testing, oscilloscope waveform analysis, SMPS power supply diagnosis, EHT voltage faults, vertical/horizontal deflection failures, and LED backlight testing.

16%

Antenna Installation & Signal Distribution

Yagi-Uda antenna element tuning, folded dipole impedance matching, 4:1 balun transformer, 75-ohm coaxial cable, parabolic dish & LNB operation, DTH reception, and MATV/CATV signal splitters.

How to Pass the UPMSP Radio & Colour TV Technique Exam

What You Need to Know

  • Passing score: Minimum 20 of 60 in each written paper, 33% in the 300-mark theory aggregate, and 50% (200 of 400) in the practical examination
  • Assessment: Theory examination compulsory for Class 12 Vocational stream students specializing in Radio and Colour Television Technique under Uttar Pradesh Board. Evaluates semiconductor device fundamentals, superheterodyne radio reception, monochrome and PAL colour TV signal processing, modern flat-panel displays (LCD/LED), receiver fault-finding, and TV antenna/DTH installation.
  • Time limit: 3 hours 15 minutes (195 minutes)
  • Exam fee: ₹600.75 for institutional (regular) Intermediate candidates in the vocational class and ₹806 for private candidates for the 2026 examination. UPMSP charges one registration fee per candidate, not per subject paper.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

UPMSP Radio & Colour TV Technique Study Tips from Top Performers

1Master BJT amplifier configurations, biasing stability factors, and Barkhausen criteria for LC and crystal oscillators.
2Memorize standard Intermediate Frequency (IF) values: 455 kHz for AM radio, 10.7 MHz for FM radio, and 38.9 MHz for TV video IF.
3Understand TV scanning parameters: 625 lines per frame, 25 frames per second, 15,625 Hz horizontal line frequency, and 50 Hz vertical field frequency.
4Learn the colour luminance equation Y = 0.30R + 0.59G + 0.11B and how PAL system phase reversal (180 degrees) eliminates hue errors.
5Practice systematic troubleshooting steps using signal tracing, multimeter resistance/voltage tests, and oscilloscope waveform analysis for SMPS and deflection circuits.
6Understand Yagi-Uda antenna dimension rules, 4:1 balun impedance transformation (300 ohms to 75 ohms), and satellite LNB downconversion (11-12 GHz Ku band to 950-2150 MHz IF).

Frequently Asked Questions

What is UPMSP Code 213 Radio and Colour Television Technique?

Code 213 is a specialized vocational subject for Class 12 students under Uttar Pradesh Madhyamik Shiksha Parishad (UPMSP), focusing on practical and theoretical principles of electronic communication, radio receivers, TV signal transmission, colour decoding, flat-panel servicing, and antenna setup.

What are the core technical domains covered in the Code 213 syllabus?

The syllabus covers six main sections: Basic Electronics & Semiconductors, AM/FM Radio Receiver Circuits, TV Transmission & Reception Principles, Colour TV Processing & Display Systems (CRT/LCD/LED), Receiver Troubleshooting & Circuit Testing, and Antenna & DTH Signal Distribution.

What is the passing mark for the UPMSP Intermediate Board examination?

Candidates must achieve a minimum of 33% aggregate marks in the theory examination to pass the subject.

Does Code 213 cover modern flat-panel displays like LED and LCD TVs?

Yes, while the core syllabus builds on fundamental CRT and PAL TV principles, modern UPMSP vocational units include LED/LCD screen operation, T-CON timing boards, LED backlight drivers, and digital DTH satellite systems.

How should students utilize this 100-question practice bank?

Students should solve all 100 practice MCQs, study the detailed explanations and wrong-option rationales, and review formula derivations for intermediate frequencies, line frequencies, and antenna impedance matching.