100+ Free UPMSP High School Mobile-Phone Repair — Code 980 Practice Questions

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Key Facts: UPMSP High School Mobile-Phone Repair — Code 980 Exam

Code 980

Official UPMSP Subject Code

UPMSP Class 10 Vocational Syllabus

70 / 30

Theory Marks / Practical & Internal Assessment

UPMSP Board Regulations

3 Hours

Board Theory Examination Duration

UPMSP Examination Schedule

100

Curated English practice questions in this bank

OpenExamPrep

33%

Minimum passing requirement

UP Board Passing Criteria

Master UPMSP Class 10 Mobile-Phone Repair (Code 980) with 100 practice questions covering electronic components, testing tools, hardware soldering, fault diagnosis, software flashing, and workshop safety.

Sample UPMSP High School Mobile-Phone Repair — Code 980 Practice Questions

Try these sample questions to test your UPMSP High School Mobile-Phone Repair — Code 980 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which setting on a digital multimeter produces an audible beep when electrical resistance between two test points is less than approximately 50 ohms?

A.Continuity / Diode Test Mode

B.DC Voltage Mode (20V)

C.AC Voltage Mode (750V)

D.Resistance Mode (20 Megaohms)

Explanation: Continuity / Diode Test Mode sends a small test current through the circuit leads and activates an internal speaker (beeper) whenever resistance is near zero or below ~50 ohms, signaling a continuous low-resistance electrical path.

2What standard unit is used to express the electrical charge storage capacity of a mobile phone battery?

A.Milliampere-hour (mAh)

B.Kilo-electronvolt (keV)

C.Megahertz (MHz)

D.Microfarad (µF)

Explanation: Milliampere-hour (mAh) measures total electrical charge capacity, indicating how many milliamperes of current a battery can supply continuously over one hour before discharging.

3Which solvent is recommended for cleaning liquid damage corrosion and flux residues from a mobile mainboard?

A.High-purity Isopropyl Alcohol (IPA 99%)

B.Plain Tap Water

C.Kerosene Oil

D.Hydrochloric Acid Solution

Explanation: High-purity Isopropyl Alcohol (IPA 99%) effectively dissolves flux, grease, and moisture deposits while evaporating rapidly without leaving conductive water minerals on sensitive PCB components.

4Which workshop tool is worn by a technician to safely drain static electricity from the body to ground?

A.Anti-Static Wrist Strap

B.Rubber Thimble

C.Magifying Visor Band

D.Thermal Insulation Glove

Explanation: An Anti-Static Wrist Strap connects the technician's body to an electrical ground through a 1-megaohm resistor, preventing electrostatic discharge (ESD) build-up that could destroy sensitive microchips.

5Which mobile phone component converts acoustic sound waves from the user's voice into an electrical audio signal?

A.Microphone (Mic)

B.Earpiece Speaker

C.Loudspeaker / Ringer

D.Vibration Motor

Explanation: The Microphone (Mic), such as an MEMS or electret mic, converts sound pressure waves into analog electrical signals sent to the audio codec or processor.

6Which passive electronic component is designed to store electrical energy in an electrostatic field and filter power noise on mainboard rails?

A.Capacitor

B.Resistor

C.Inductor

D.Light Emitting Diode

Explanation: A Capacitor stores electrical charge across dielectric layers, acting as a power supply reservoir and filtering high-frequency noise from DC voltage rails to ground.

7Which instrument provides adjustable direct current voltage and current readout to power mobile PCBs during troubleshooting?

A.Regulated DC Power Supply

B.Variable AC Transformer

C.Signal Function Generator

D.Frequency Counter

Explanation: A Regulated DC Power Supply allows technicians to set target voltage (e.g. 3.8V - 4.2V) and current limits, simulating a battery while displaying real-time milliampere consumption during power-on testing.

8What does the abbreviation 'SMD' stand for in modern mobile phone board construction?

A.Surface Mount Device

B.System Main Module

C.Single Mode Diode

D.Standard Micro Drive

Explanation: Surface Mount Device (SMD) refers to miniature electronic components designed to be soldered directly onto copper pads on the surface of printed circuit boards without wire leads.

9Which tool uses heated air to reflow solder and desolder multi-pin SMD integrated circuits from mobile PCBs?

A.Hot Air Rework Station (SMD Blower)

B.Pencil Tip Soldering Iron

C.Electric Heat Gun (1500W Stripper)

D.Thermal Wire Stripper

Explanation: An SMD Hot Air Rework Station delivers temperature-controlled air through interchangeable nozzles to melt all pin solder joints simultaneously for component removal or reflowing.

10What is the typical nominal fully charged voltage level of a single-cell Lithium-ion mobile phone battery?

A.4.2 Volts

B.1.5 Volts

C.12.0 Volts

D.0.7 Volts

Explanation: A fully charged single-cell Li-ion / Li-Po smartphone battery reaches approximately 4.2V (or 4.35V/4.4V on high-voltage variants), while its nominal rating is 3.7V - 3.85V.

About the UPMSP High School Mobile-Phone Repair — Code 980 Exam

The Uttar Pradesh UPMSP High School (Class 10) Mobile-Phone Repair (Code 980) exam assesses foundational skills in electronic hardware repair, component soldering, fault troubleshooting, battery/charging circuit servicing, software flashing, and workshop safety. This practice set provides a comprehensive 100-question English-language MCQ adaptation aligned with the UPMSP syllabus guidelines.

Assessment

100 multiple-choice practice questions structured as an English-language study adaptation for UPMSP Class 10 High School Mobile-Phone Repair (Code 980). The official UPMSP board exam consists of a written theory paper (70 marks) and practical workshop assessment (30 marks).

Time Limit

3 hours 15 minutes (typical UPMSP High School theory paper; confirm current scheme for the subject)

Passing Score

33% aggregate in theory and practical components

Exam Fee

Included in standard UP Board High School registration fees (Uttar Pradesh Madhyamik Shiksha Parishad (UPMSP))

UPMSP High School Mobile-Phone Repair — Code 980 Exam Content Outline

20%

Mobile Hardware & Components

SMD components (resistors, capacitors, inductors, diodes, transistors), PCB layout, mainboard sections, connectors, display/touchscreen, and audio transducers.

15%

Testing Tools & Workshop Equipment

Digital multimeter testing (voltage, resistance, diode/continuity mode), regulated DC power supply, SMD rework station, soldering irons, and BGA reballing tools.

15%

Hardware Repairs & Component Servicing

Soldering techniques, micro-jumpering broken PCB tracks, replacing SMD chips, screen replacement, charging connector repair, and microphone/speaker replacement.

15%

Software Flashing & Firmware Servicing

Flashing stock firmware/ROMs, bootloader modes, flashing tools (SP Flash Tool, Odin, Fastboot), driver installation, soft brick recovery, and ethical IMEI restoration concepts.

15%

Fault Diagnosis & Circuit Troubleshooting

Cold testing vs hot testing, detecting dead phone faults, short circuit identification using rosin flux and multimeter, charging fault tracing, and signal/network diagnostics.

10%

Battery & Charging Circuits

Lithium-ion/Li-Po battery chemistry, voltage levels, battery boost, Power Management IC (PMIC), USB pinout (VBUS, D+, D-, GND), and battery safety.

10%

Workshop Safety & ESD Protection

Electrostatic Discharge (ESD) prevention, anti-static wrist straps and mats, chemical safety with Isopropyl Alcohol (IPA), thermal safety with hot air guns, and safe battery handling.

How to Pass the UPMSP High School Mobile-Phone Repair — Code 980 Exam

What You Need to Know

Passing score: 33% aggregate in theory and practical components
Assessment: 100 multiple-choice practice questions structured as an English-language study adaptation for UPMSP Class 10 High School Mobile-Phone Repair (Code 980). The official UPMSP board exam consists of a written theory paper (70 marks) and practical workshop assessment (30 marks).
Time limit: 3 hours 15 minutes (typical UPMSP High School theory paper; confirm current scheme for the subject)
Exam fee: Included in standard UP Board High School registration fees

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 High School Mobile-Phone Repair — Code 980 Study Tips from Top Performers

1Master the difference between cold testing (power off, resistance/diode mode) and hot testing (power on, DC voltage mode) on mobile PCBs.

2Understand the pinout of standard micro-USB and USB Type-C connectors: VBUS (+5V power), D- (data minus), D+ (data plus), ID (identification), and GND (ground).

3Learn how to use a regulated DC power supply to interpret current draw (0 mA dead line, fixed 20-50 mA boot loop, high amp short circuit).

4Memorize recommended temperature and airflow settings for SMD rework stations when desoldering charging ports vs sensitive BGA ICs.

5Review firmware flashing steps, identifying target chipsets (MediaTek using SP Flash Tool, Qualcomm using Fastboot/QFIL, Samsung using Odin).

6Always follow ESD precautions by wearing an anti-static wrist strap connected to ground before touching delicate phone mainboards.

Frequently Asked Questions

What is UPMSP Class 10 Code 980 Mobile-Phone Repair?

It is a practical vocational trade subject offered under the Uttar Pradesh Madhyamik Shiksha Parishad (UPMSP) High School curriculum for Class 10 students to learn mobile hardware, electronics servicing, fault diagnosis, and software maintenance.

Is this practice question bank in English?

Yes, this practice bank is an English-language MCQ study adaptation designed to help UPMSP Class 10 students master technical terms and concepts for Mobile-Phone Repair (Code 980).

What testing tools are essential for mobile phone troubleshooting in Code 980?

Key testing tools include a digital multimeter (for measuring voltage, resistance, and continuity/diode testing), a regulated DC power supply (to boot phones and check current consumption), and an oscilloscope or frequency counter for advanced clock signal testing.

How is a short circuit on a mobile PCB diagnosed during fault testing?

A short circuit is typically diagnosed using cold testing with a multimeter in diode/continuity mode, or hot testing by applying voltage from a DC power supply and coating components with rosin flux or using thermal detection to find overheating components.

What is the difference between cold testing and hot testing in mobile phone repair?

Cold testing is performed without connecting any power source (battery or DC supply), measuring resistance and diode readings across PCB test points. Hot testing is done while power is supplied to check operating voltages at various circuit stages.