Current Affairs MCQs – Science & Technology Set 4 (20 Explained)

ByArsalan Khan

This is a 20-question MCQ set on Science & Technology (Set 4) — acronyms, measuring instruments, and SI units. Attempt all 20 in 25 minutes without looking at the answers, then check the explained answers and review your weak section. These are original practice questions, not copied from FPSC papers or competitor question banks, and this site is not affiliated with FPSC. Scoring: 18–20 = strong. 15–17 = good. 12–14 = fair, revise the sections you missed. Below 12 = study the weak-section review, then re-attempt in 2 days.

Science Technology MCQs Set 4 – 20 Explained

Questions (Q1–Q20):

Q1. What does “LAN” stand for? A) Large Area Network B) Local Area Network C) Long Area Network D) Light Area Network

Q2. What does “WAN” stand for? A) Wide Area Network B) World Area Network C) Web Area Network D) Wireless Area Network

Q3. What does “ROM” stand for? A) Read Only Memory B) Random Only Memory C) Read Open Memory D) Run Only Memory

Q4. What does “CD” stand for? A) Compact Disc B) Central Disc C) Computer Disc D) Common Disc

Q5. What does “DVD” stand for? A) Digital Video Disc B) Digital Versatile Disc C) Data Video Disc D) Direct Video Disc

Q6. What does “SIM” stand for? A) Subscriber Identity Module B) Subscriber Information Module C) System Identity Module D) Subscriber Identity Machine

Q7. What does “ATM” stand for? A) Automatic Teller Machine B) Automated Teller Machine C) Auto Teller Machine D) Automated Transfer Machine

Q8. What does “LCD” stand for? A) Liquid Crystal Display B) Light Crystal Display C) Liquid Computer Display D) Large Crystal Display

Q9. What does “JPEG” stand for? A) Joint Photographic Experts Group B) Joint Picture Experts Group C) Joint Photographic Exchange Group D) Joint Photo Experts Group

Q10. Which device is used to measure temperature? A) Barometer B) Thermometer C) Altimeter D) Speedometer

Q11. Which device is used to measure blood pressure? A) Thermometer B) Sphygmomanometer C) Stethoscope D) Glucometer

Q12. Which instrument is used to measure earthquakes? A) Seismograph B) Barograph C) Anemometer D) Hygrometer

Q13. Which instrument is used to measure the speed of wind? A) Anemometer B) Barometer C) Altimeter D) Odometer

Q14. Which instrument is used to measure humidity? A) Barometer B) Hygrometer C) Thermometer D) Lactometer

Q15. Which is the unit of force? A) Joule B) Newton C) Watt D) Pascal

Q16. Which is the unit of energy? A) Newton B) Joule C) Watt D) Volt

Q17. Which is the unit of frequency? A) Hertz B) Ohm C) Ampere D) Tesla

Q18. Which is the unit of pressure? A) Joule B) Newton C) Pascal D) Watt

Q19. Which is the unit of electric charge? A) Ampere B) Coulomb C) Volt D) Ohm

Q20. Which is the unit of luminous intensity? A) Lumen B) Candela C) Lux D) Watt

Answer Key + Explained Answers:

Q1 – B) Local Area Network. LAN stands for Local Area Network. Large, Long, Light are wrong.

Q2 – A) Wide Area Network. WAN stands for Wide Area Network. World, Web, Wireless are wrong.

Q3 – A) Read Only Memory. ROM stands for Read Only Memory. Random Only, Read Open, Run Only are wrong.

Q4 – A) Compact Disc. CD stands for Compact Disc. Central, Computer, Common are wrong.

Q5 – B) Digital Versatile Disc. DVD stands for Digital Versatile Disc. Digital Video Disc is a common misnomer but Versatile is the correct expansion.

Q6 – A) Subscriber Identity Module. SIM stands for Subscriber Identity Module. Information, System, Machine are wrong.

Q7 – B) Automated Teller Machine. ATM stands for Automated Teller Machine. Automatic, Auto, Transfer are wrong.

Q8 – A) Liquid Crystal Display. LCD stands for Liquid Crystal Display. Light, Computer, Large are wrong.

Q9 – A) Joint Photographic Experts Group. JPEG stands for Joint Photographic Experts Group. Picture, Exchange, Photo are wrong.

Q10 – B) Thermometer. Thermometer measures temperature. Barometer measures pressure, altimeter measures altitude, speedometer measures speed.

Q11 – B) Sphygmomanometer. Sphygmomanometer measures blood pressure. Thermometer measures temperature, stethoscope listens to heart, glucometer measures blood sugar.

Q12 – A) Seismograph. Seismograph measures earthquakes. Barograph records pressure, anemometer measures wind, hygrometer measures humidity.

Q13 – A) Anemometer. Anemometer measures wind speed. Barometer measures pressure, altimeter measures altitude, odometer measures distance.

Q14 – B) Hygrometer. Hygrometer measures humidity. Barometer measures pressure, thermometer measures temperature, lactometer measures milk purity.

Q15 – B) Newton. Newton is the unit of force. Joule is energy, Watt is power, Pascal is pressure.

Q16 – B) Joule. Joule is the unit of energy. Newton is force, Watt is power, Volt is voltage.

Q17 – A) Hertz. Hertz is the unit of frequency. Ohm is resistance, Ampere is current, Tesla is magnetic flux density.

Q18 – C) Pascal. Pascal is the unit of pressure. Joule is energy, Newton is force, Watt is power.

Q19 – B) Coulomb. Coulomb is the unit of electric charge. Ampere is current, Volt is voltage, Ohm is resistance.

Q20 – B) Candela. Candela is the unit of luminous intensity. Lumen is luminous flux, lux is illuminance, Watt is power.

Weak-Section Review:

Which questions did you miss? Write the 3 you missed, the correct answers, and one line for each explaining why.

Science & Technology: revise LAN (Local Area Network), WAN (Wide Area Network), ROM (Read Only Memory), CD (Compact Disc), DVD (Digital Versatile Disc), SIM (Subscriber Identity Module), ATM (Automated Teller Machine), LCD (Liquid Crystal Display), JPEG (Joint Photographic Experts Group), Thermometer (temperature), Sphygmomanometer (blood pressure), Seismograph (earthquakes), Anemometer (wind speed), Hygrometer (humidity), Newton (force), Joule (energy), Hertz (frequency), Pascal (pressure), Coulomb (charge), Candela (luminous intensity). Re-attempt this set in 2 days.

These are original practice questions written for csspastpapers.pk. They are not FPSC official questions, and this site is not affiliated with FPSC.

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