CBSE Class 3 General Knowledge Science and Technology MCQs

Question. Who invented the BALL POINT PEN?
(a) Biro Brothers
(a) Waterman Brothers
(c) Bicc Brothers
(d) John J. Loud
Answer : D

Question. What did Galileo invent?
(a) Barometer
(b) Pendulum clock
(c) Microscope
(d) Telescope
Answer : D

Question. What did James Watt invent?
(a) Diving bell
(b) Steam boat
(c) Hot air balloon
(d) Rotary steam engine
Answer : D

Question. What did Benjamin Franklin invent?
(a) Bifocal spectacles
(b) Electricity
(c) Barometer
(d) Hygrometer
Answer : B

Question. Which one of the following is considered as the primary source of information?
(a) Computers
(b) Laptops
(c) Both (a) and (b)
(d) None of these
Answer : C

Question. Which one of the following is NOT a gadget?
(a) Smartphones
(b) Bullock cart
(c) Tablets
(d) None of these
Answer : B

Question. What is the full form of GPS?
(a) Global positioning system
(b) Global preceeding system
(c) Global predicting system
(d) All of these
Answer : A

Question. Doctors can see the inside of our body with the help of ________. 
(a) machines
(b) laptops
(c) x-rays
(d) none of these
Answer : C

Question. When you left a piece of bread, ______ formation takes place.
(a) mould
(b) mist
(c) both (a) and (b)
(d) none of these
Answer : A

Question. Which one of the following is NOT an advantage of gadgets? 
(a) Freedom to communicate quickly
(b) Learn through web seminars
(c) Taught in an exciting way
(d) Children are far apart from moral values
Answer : D

Question. Statement-A: Science made sharing and transfer of information possible from one corner of the world to another.
Statement-B: We can share information with the help of mobile phones and internet.
(a) Statement A is correct.
(b) Statement B is correct.
(c) Both are correct
(d) None of these
Answer : C

Question. Which of the following is an example of gadgets we use?
(a) Tablets
(b) Smart T.V.'s
(c) Smartphones
(d) All of these
Answer : D

Question. Which one is mismatched? 
(a) Helicopter - Broquet
(b) Automobile - Verbiest
(c) Radio - Graham Bell
(d) None of these
Answer : C

Question. Who invented Internet?
(a) Vint Cerf
(b) John J. Loud
(c) Broquet
(d) J.L. Baird
Answer : A

Question. Statement-A : Heart transplant is possible due to science.
Statement-B : The heart controls all activities of our body.
(a) Statement A is correct.
(b) Statement B is correct.
(c) Both are correct
(d) Both are incorrect
Answer : A

Question. Identify 'X' and 'Y'

(a) X = Keeps food fresh longer; Y = J.L. Baird
(b) X = Keeps food fresh; Y = Thomas Edison
(c) X = Used for communication; Y = Marconi
(d) None of these
Answer : A

Question. Match the following :
A. Electric bulb      1. James Watt
B. Telephone         2. Marconi
C. Engine              3. Edison
D. Radio               4. Graham Bell
(a) A-2; B-1; C-4; D-3
(b) A-1; B-3; C-4; D-2
(c) A-2; B-4; C-1; D-3
(d) A-3; B-4; C-1; D-2
Answer : D

Question. Which one of the following is invented by Philip Diehl? 
(a) Air conditioner
(b) Helicopter
(c) Ceiling Fans
(d) None of these
Answer : C

Question. Find the odd one:
(a) Smartphones
(b) Laptop
(c) Telefax
(d) X-Rays
Answer : D

Question. In which of the following, science is not involved?
(a) Flying of a kite
(b) Wastage of food
(c) In cooking
(d) In rest
Answer : D

Question. In which year, was the world's first mobile phone handset released for sale?
(a) 1979
(b) 1983
(c) 1991
(d) 2001
Answer : B

Question. Who designed the 'First' small computer for home use? 
(a) John Blankenbaker
(b) Steve Wozniak
(c) Chuck Peddle
(d) Steve Leninger
Answer : A

Question. An instrument to measure temperature is called______.
(a) Hydrometer
(b) Thermometer
(c) Gyrometer
(d) Tempometer
Answer : B

Question. Television was invented by______.
(a) Sholes
(b) J.L. Baird
(c) Shockley
(d) John Napier
Answer : B

Question. Who invented the railway engine?
(a) Charles Babbage
(b) Issac Newton
(c) James Watt
(d) George Stephenson
Answer : D