Innovators Practice Questions
20 free Innovators practice questions for the Static GK. Tap an option to answer — you get instant feedback, the correct answer, and a detailed explanation for every question.
Which English polymath is often referred to as the 'Father of the Computer' for originating the concept of a programmable computer?
- A Alan Turing
- B Charles Babbage
- C John von Neumann
- D Ada Lovelace
Correct answer: Charles Babbage
Charles Babbage designed the Difference Engine and the more complex Analytical Engine in the 19th century. Although never fully completed in his lifetime, his designs contained the essential logical structure of modern computers.
Who is credited with inventing the World Wide Web (WWW) while working at CERN in 1989?
- A Robert Cailliau
- B Vint Cerf
- C Tim Berners-Lee
- D Steve Jobs
Correct answer: Tim Berners-Lee
Tim Berners-Lee wrote the first web browser and the fundamental protocols like HTTP and HTML. He famously chose not to patent his invention, allowing the web to grow as an open global platform.
Which American inventor, known as the 'Wizard of Menlo Park', patented the first commercially viable incandescent light bulb and the phonograph?
- A Nikola Tesla
- B Thomas Edison
- C Alexander Graham Bell
- D George Westinghouse
Correct answer: Thomas Edison
Thomas Edison held over 1,000 patents in his name and established the first industrial research laboratory. His work on the electric power distribution system laid the foundation for the modern industrialized world.
The invention of the 'Safety Elevator', which used a braking mechanism to prevent falling if the cable broke, is attributed to:
- A Elisha Otis
- B Henry Ford
- C James Watt
- D Robert Fulton
Correct answer: Elisha Otis
Elisha Otis demonstrated his invention in 1854 at the New York World's Fair. This innovation was crucial for the development of skyscrapers, as it made tall buildings practical and safe for human use.
Which Serbian-American innovator is best known for his contributions to the design of the modern alternating current (AC) electricity supply system?
- A James Watt
- B Michael Faraday
- C Nikola Tesla
- D Alessandro Volta
Correct answer: Nikola Tesla
Nikola Tesla's AC patents and polyphase system were licensed by Westinghouse to win the 'War of Currents'. His work also pioneered wireless communication, X-rays, and remote control.
Who developed the 'Bessemer Process', the first inexpensive industrial process for the mass production of steel from molten pig iron?
- A Andrew Carnegie
- B Henry Bessemer
- C John D. Rockefeller
- D Alfred Nobel
Correct answer: Henry Bessemer
Sir Henry Bessemer patented the process in 1856, which involved blowing air through molten iron to remove impurities by oxidation. This drastically reduced the cost of steel, fueling the expansion of railroads and bridges.
The 'Polio Vaccine', which used an inactivated virus to provide immunity, was developed by which medical innovator in 1955?
- A Albert Sabin
- B John Snow
- C Jonas Salk
- D Louis Pasteur
Correct answer: Jonas Salk
Jonas Salk refused to patent the vaccine, stating it belonged to the people. His work led to a massive reduction in polio cases worldwide, nearly eradicating the paralyzing disease.
Which innovator is credited with inventing the first handheld mobile phone while working at Motorola in 1973?
- A Martin Cooper
- B Ray Tomlinson
- C Jack Kilby
- D Robert Noyce
Correct answer: Martin Cooper
Martin Cooper made the first public cell phone call on a prototype DynaTAC model. He is considered the father of the mobile phone for leading the team that developed wireless handheld technology.
The 'Integrated Circuit' (microchip), which allowed for the miniaturization of electronic devices, was co-invented by Robert Noyce and:
- A Gordon Moore
- B Jack Kilby
- C Bill Hewlett
- D Paul Allen
Correct answer: Jack Kilby
Jack Kilby of Texas Instruments and Robert Noyce of Fairchild Semiconductor independently developed the integrated circuit. Kilby was awarded the Nobel Prize in Physics in 2000 for this foundational invention.
Which Scottish engineer is credited with significantly improving the steam engine, leading to the Industrial Revolution?
- A James Watt
- B George Stephenson
- C John Kay
- D Matthew Boulton
Correct answer: James Watt
James Watt introduced a separate condenser that prevented enormous losses of steam, making the engine much more efficient. The SI unit of power, the 'watt', is named in his honor.
Who invented 'Dynamite' and later bequeathed his fortune to establish the Nobel Prizes?
- A Alfred Nobel
- B Marie Curie
- C Ernest Rutherford
- D Dmitri Mendeleev
Correct answer: Alfred Nobel
Alfred Nobel sought a safer way to use nitroglycerin for mining and construction, leading to the invention of dynamite in 1867. Concerned about his legacy as an 'arms dealer', he used his wealth to reward humanity's greatest achievements.
Which innovator is known for creating the first 'Email' system and choosing the '@' symbol to separate the user name from the machine name?
- A Vint Cerf
- B Ray Tomlinson
- C Marc Andreessen
- D Larry Page
Correct answer: Ray Tomlinson
Ray Tomlinson sent the first network email in 1971 while working on the ARPANET. His choice of the '@' symbol became a global standard for electronic addresses.
The invention of the 'Braille' system, which allowed the blind to read and write, was created by Louis Braille at what age?
- A 15
- B 25
- C 35
- D 45
Correct answer: 15
Louis Braille, who was blinded as a child, developed his system of raised dots based on 'night writing' used by the military. He finalized the 6-dot cell system while still a student in 1824.
Which American innovator co-founded Apple Inc. and was a pioneer of the personal computer revolution with the launch of the Macintosh?
- A Steve Jobs
- B Bill Gates
- C Jeff Bezos
- D Elon Musk
Correct answer: Steve Jobs
Steve Jobs was a visionary who championed the use of the Graphical User Interface (GUI) and the mouse. He later transformed the music and mobile phone industries with the iPod and iPhone.
The 'Pasteurization' process, which kills microbes in food and drink using heat, was developed by which French scientist?
- A Louis Pasteur
- B Robert Koch
- C Antoine Lavoisier
- D Claude Bernard
Correct answer: Louis Pasteur
Louis Pasteur's work proved the germ theory of disease. Pasteurization made milk and wine safe for consumption and drastically reduced the incidence of food-borne illnesses.
Who is credited with inventing the 'Printing Press' with movable type in the 15th century?
- A Leonardo da Vinci
- B Johannes Gutenberg
- C William Caxton
- D Nicolaus Copernicus
Correct answer: Johannes Gutenberg
Johannes Gutenberg's invention around 1440 started the Printing Revolution. It made books affordable and accessible, facilitating the spread of ideas during the Renaissance and the Reformation.
Which innovator developed the 'Liquid-fueled Rocket', paving the way for modern space exploration?
- A Wernher von Braun
- B Yuri Gagarin
- C Neil Armstrong
- D Robert Goddard
Correct answer: Robert Goddard
Robert Goddard launched the world's first liquid-fueled rocket in 1926. Though mocked at the time, his work on rocket propulsion and stabilization was essential for the eventual moon landings.
The 'Blue LED', which made energy-efficient white LED lighting possible, earned the Nobel Prize for Shuji Nakamura and which other innovators?
- A Steven Chu and Claude Cohen-Tannoudji
- B Charles Kao and Willard Boyle
- C Andre Geim and Konstantin Novoselov
- D Isamu Akasaki and Hiroshi Amano
Correct answer: Isamu Akasaki and Hiroshi Amano
Red and green LEDs existed for decades, but the blue LED was extremely difficult to create. Akasaki, Amano, and Nakamura succeeded in the early 1990s, triggering a revolution in lighting technology.
Which woman is credited with writing the first 'Algorithm' intended for a machine, making her the world's first computer programmer?
- A Grace Hopper
- B Katherine Johnson
- C Margaret Hamilton
- D Ada Lovelace
Correct answer: Ada Lovelace
Ada Lovelace wrote notes on Babbage's Analytical Engine that included a method for calculating Bernoulli numbers. She foresaw that computers could do more than just math, potentially creating music or art.
The inventor of 'Penicillin', the world's first true antibiotic, was:
- A Joseph Lister
- B Ernst Boris Chain
- C Robert Koch
- D Alexander Fleming
Correct answer: Alexander Fleming
Alexander Fleming discovered the mold Penicillium notatum by accident in 1928. His discovery revolutionized medicine by providing a way to treat bacterial infections that were previously fatal.