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100+ Free Punjab PSEB Sr. Sec. NSQF Electronics (Solar Panel Installation Technician) Practice Questions

Punjab School Education Board (PSEB) Senior Secondary Class 12 NSQF Electronics (Code 220) — Job Role: Solar Panel Installation Technician practice questions are available now; exam metadata is being verified.

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2026 Statistics

Key Facts: Punjab PSEB Sr. Sec. NSQF Electronics (Solar Panel Installation Technician) Exam

Code 220

PSEB Senior Secondary NSQF Electronics trade code

PSEB Scheme of Studies Class XII

40 + 50 + 10

Theory + Practical + INA marks

PSEB Scheme of Studies Class XII (Electronics 220)

33%

Minimum separately in Theory, Practical, INA and in aggregate

PSEB Scheme of Studies Class XII pass rule

Solar Panel Installation Technician

Official Class 12 job role title for trade 220

PSEB Class 12 Electronics syllabus 2026-27 / Scheme of Studies

SGJ/Q0101 & ELE/Q5901

Curriculum QP reference family (PSSCIVE / ESSCI lineage)

PSEB Solar Panel Installation Technician curriculum document

English MCQ adaptation

This free local bank is not the official mixed theory+practical format

OpenExamPrep practice policy

PSEB Class 12 NSQF Electronics (code 220, Solar Panel Installation Technician) is Theory 40 + Practical 50 + INA 10 = 100 with school-level evaluation of Board-set theory papers. Pass is 33% separately in each component and in aggregate. This free 2026 bank is an English MCQ study adaptation — not an official practical or paper simulation, and not the Matric home-appliance electronics bank.

Sample Punjab PSEB Sr. Sec. NSQF Electronics (Solar Panel Installation Technician) Practice Questions

Try these sample questions to test your Punjab PSEB Sr. Sec. NSQF Electronics (Solar Panel Installation Technician) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1The photovoltaic (PV) effect converts sunlight into electricity primarily by:
A.Generating a potential difference when photons free charge carriers in a semiconductor junction
B.Heating water to drive a steam turbine
C.Spinning a magnet inside copper coils with wind
D.Burning hydrogen produced from solar heat
Explanation: In a PV cell, absorbed photons create electron–hole pairs at a p–n junction and the built-in field separates charges, producing DC voltage and current under load.
2A solar PV module produces which form of electrical output under normal sunlight?
A.Alternating current (AC) at grid frequency
B.Direct current (DC)
C.Three-phase AC only
D.High-frequency radio-frequency energy only
Explanation: PV cells and modules generate DC. An inverter is needed when AC is required for household loads or grid connection.
3STC (Standard Test Conditions) for rating PV modules typically include irradiance of:
A.100 W/m², 50 °C cell temperature
B.500 W/m², 40 °C cell temperature
C.1000 W/m², 25 °C cell temperature, AM 1.5 spectrum
D.2000 W/m², 0 °C cell temperature
Explanation: Module nameplate ratings (Wp, Vmp, Imp, etc.) are referenced to STC: 1000 W/m² irradiance, 25 °C cell temperature, and AM 1.5 spectrum.
4A 400 Wp module operating for 5 peak sun hours (PSH) under ideal conditions can produce about how much energy in that day?
A.80 Wh
B.400 Wh
C.5000 Wh
D.2000 Wh (2 kWh)
Explanation: Approximate daily energy ≈ Wp × peak sun hours = 400 W × 5 h = 2000 Wh = 2 kWh (before system losses).
5As crystalline silicon cell temperature rises above 25 °C, module voltage and power typically:
A.Voltage falls and maximum power usually decreases
B.Both increase strongly
C.Remain exactly constant at STC values
D.Become zero above 30 °C
Explanation: Silicon cells have a negative voltage temperature coefficient. Hot cells reduce Voc/Vmp and usually lower power despite small current changes.
6Irradiance of 1000 W/m² means that on each square metre of surface:
A.1000 joules of heat are stored permanently
B.1000 watts of solar power are incident
C.1000 amperes flow automatically
D.1000 volts appear across any metal plate
Explanation: Irradiance is power per unit area (W/m²). 1000 W/m² is the STC reference full-sun intensity used in module ratings.
7A PV array delivers 20 A at 48 V into a load. Instantaneous power is:
A.2.4 W
B.68 W
C.960 W
D.9600 W
Explanation: Electrical power P = V × I = 48 V × 20 A = 960 W.
8Compared with diffuse light on a cloudy day, direct beam irradiance on a clear day typically allows a PV array to:
A.Produce only AC without an inverter
B.Charge only at night
C.Operate solely on infrared heating of the frame
D.Produce significantly higher power near its rated capability
Explanation: Clear-sky direct irradiance is much higher than heavy cloud diffuse light, so array current and power rise toward nameplate capability (temperature and angle still matter).
9A typical crystalline silicon PV module is built from:
A.Series-connected solar cells laminated behind tempered glass with a weather-sealed backsheet or glass
B.A single large electromagnet and copper rotor
C.Only loose bare wafers without encapsulation
D.A diesel injector and fuel rail
Explanation: Commercial modules interconnect many cells in series (and sometimes parallel groups), encapsulate them, and protect them with glass, frame, and backsheet/glass for outdoor service.
10On a module nameplate, Voc means:
A.Voltage under continuous overload only
B.Open-circuit voltage with no load connected
C.Operating current at maximum power
D.Total array watt-peak only
Explanation: Voc is the open-circuit voltage measured with no load (and usually at STC on the label). It is higher than Vmp, the voltage at maximum power.

About the Punjab PSEB Sr. Sec. NSQF Electronics (Solar Panel Installation Technician) Practice Questions

Verified exam format metadata for Punjab School Education Board (PSEB) Senior Secondary Class 12 NSQF Electronics (Code 220) — Job Role: Solar Panel Installation Technician is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.