General Knowledge carries 50 marks in the AISSEE Class 6 paper and is also tested in the RMS CET. These 10 MCQs on Scientific Instruments and Inventions cover facts that are asked again and again in Sainik and Military School entrance exams.
Quick facts: AISSEE 2027 will be held on Sunday, 31 January 2027. There is no negative marking, so attempt every question. Online applications are open until 2 December 2026 on exams.nta.nic.in/sainik-school-society.
Practice Questions
Q1. Which instrument is used to measure atmospheric pressure?
(A) Thermometer
(B) Barometer
(C) Hygrometer
(D) Ammeter
Q2. Which instrument is used to measure earthquakes?
(A) Barometer
(B) Seismograph
(C) Odometer
(D) Lactometer
Q3. A lactometer is used to test the purity of ________.
(A) milk
(B) oil
(C) honey
(D) water
Q4. Which instrument is used to see distant objects like stars?
(A) Microscope
(B) Periscope
(C) Telescope
(D) Stethoscope
Q5. A periscope is used in submarines to ________.
(A) detect sound
(B) measure speed
(C) see objects above the water surface
(D) measure depth
Q6. Who invented the telephone?
(A) Alexander Graham Bell
(B) Thomas Edison
(C) Marconi
(D) James Watt
Q7. Who invented the electric bulb?
(A) Michael Faraday
(B) Wright Brothers
(C) Isaac Newton
(D) Thomas Edison
Q8. Who discovered penicillin?
(A) Alexander Fleming
(B) Edward Jenner
(C) Louis Pasteur
(D) Robert Koch
Q9. The Wright Brothers are famous for inventing the ________.
(A) car
(B) steam engine
(C) radio
(D) aeroplane
Q10. An odometer measures the ________ travelled by a vehicle.
(A) speed
(B) distance
(C) height
(D) fuel
Answer Key with Explanations
(B) Barometer — A barometer measures air pressure and helps forecast weather.
(B) Seismograph — A seismograph records the waves produced by earthquakes.
(A) milk — A lactometer measures the density of milk.
(C) Telescope — A telescope makes faraway objects look closer.
(C) see objects above the water surface — Mirrors in a periscope let sailors see above water.
(A) Alexander Graham Bell — Graham Bell patented the telephone in 1876.
(D) Thomas Edison — Thomas Edison developed a practical electric bulb in 1879.
(A) Alexander Fleming — Fleming discovered penicillin, the first antibiotic, in 1928.
(D) aeroplane — They made the first powered aeroplane flight in 1903.
(B) distance — An odometer records distance; a speedometer shows speed.
How did you score?
9–10 correct: excellent — move on to a full-length mock test. 6–8: good — revise the explanations of the questions you missed. Below 6: study this topic again from your NCERT book and retry these questions after two days.
Free AISSEE / RMS Mock Test
Want a full-length mock test with an All-India rank? Enunciate Academy runs online coaching for Sainik School, RMS, Navodaya and RIMC entrance exams for Class 6 and 9 students across Andhra Pradesh and Telangana. Message us on WhatsApp (94924 44498) to get a free mock test, or see the Spark batch details.
