Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Who invented the Lightning Rod in 1749?

A. Benjamin Franklin
B. Nikola Tesla
C. Eli Whitney
D. George Washington
Answer» B. Nikola Tesla
2.

Who invented the electrocardiogram (ECG)?

A. Willem Einthoven
B. Edward Jenner
C. Antonio de Ulloa and Charles Wood
D. Karl Benz
Answer» B. Edward Jenner
3.

Who Invented the First Adhesive Tape ?

A. Richard GurleyDrew
B. Alexander Graham Bell
C. James Rineose
D. Caresse Crosby
Answer» B. Alexander Graham Bell
4.

Who invented the hot air balloon?

A. Montgolfier brothers
B. Wright brothers
C. Lisitsyn brothers
D. Walton brothers
Answer» B. Wright brothers
5.

Who invented the electric tram?

A. James Cook
B. William Harvey
C. Fyodor Pirotsky
D. Robert Boyles
Answer» D. Robert Boyles
6.

Who invented the contact lens?

A. Enrico Fermi
B. Adolf Gaston Eugen Fick
C. Sandford Fleming
D. Benoit Fourneyron
Answer» C. Sandford Fleming
7.

Who invented the Centigrade scale?

A. Anders Celsius
B. Daniel Gabriel Fahrenheit
C. William Thomson
D. Wright Brothers
Answer» B. Daniel Gabriel Fahrenheit
8.

Who Invented the 3-D printer?

A. Nick Holonyak
B. Elias Howe
C. Chuck Hull
D. Christiaan Huygens
Answer» D. Christiaan Huygens
9.

Who invented Rocket?

A. Rich K Goyle
B. E M Forster
C. Robert Goddard
D. James Anderson
Answer» D. James Anderson
10.

Who invented Television?

A. J L Baird
B. Aristotle
C. James Clerk Maxwell
D. Nikola Tesla
Answer» B. Aristotle
11.

Who invented Space Pen?

A. Paul C. Fisher
B. Rudolf Diesel
C. Wright Brothers
D. Alexander Fleming
Answer» B. Rudolf Diesel
12.

Who invented Telephone?_x005F_x000D_

A. Alexander Graham Bell
B. Thomas Edison
C. Benjamin Franklin
D. James Watt
Answer» B. Thomas Edison
13.

Who invented Radio?

A. Grahambell
B. Galileo
C. Marconi
D. Edison
Answer» D. Edison
14.

Who invented radar?

A. Fred Morrison
B. A. H. Taylor and Leo C. Young
C. Van Tassel
D. W. K. Roentgen
Answer» C. Van Tassel
15.

Who Invented postage stamp?

A. Ruth Handler
B. John Harington
C. Rowland Hill
D. Felix Hoffmann
Answer» D. Felix Hoffmann
16.

Who Invented Neon Lamp?

A. Vint Cerf
B. David Chaum
C. Georges Claude
D. Josephine Cochrane
Answer» D. Josephine Cochrane
17.

Who invented Pentium Chip?

A. Kumar Patel
B. Tom Gunter
C. Vince Emery
D. Vinod Dham
Answer» E.
18.

Who Invented PlayStation?

A. Wright brothers
B. Reynold B. Johnson
C. Assen Jordanoff
D. Ken Kutaragi
Answer» E.
19.

Who Invented Piano ?

A. Bartolomeo Cristofori di Francesco
B. Ruth Graves Wakefield
C. Adolf Gaston Eugen Fick
D. Jacques Cousteau
Answer» B. Ruth Graves Wakefield
20.

Who Invented Post-it note?

A. William Friese-Greene
B. Arthur Fry
C. Gordon Gould
D. Otto von Guericke
Answer» C. Gordon Gould
21.

Who Invented Modern Frequency Modulation FM Radio ?

A. Peter Durand
B. Percy Shaw
C. Edwin H. Armstrong
D. Leo Hendrik Baekeland
Answer» D. Leo Hendrik Baekeland
22.

Who Invented Microwave Oven ?

A. Lewis Edson Waterman
B. Levi Strauss
C. Percy LeBaron Spencer
D. Sir Sandford Fleming
Answer» D. Sir Sandford Fleming
23.

Who invented logarithms?

A. Eden Snowden
B. Larry Page
C. Thomas Edison
D. John Napier
Answer» E.
24.

Who Invented LED?

A. Nick Holonyak
B. Elias Howe
C. Chuck Hull
D. Christiaan Huygens
Answer» B. Elias Howe
25.

Who Invented Lawnmower?

A. Edwin Howard Armstrong
B. John Barber
C. Edwin Beard Budding
D. Nicholas Callan
Answer» D. Nicholas Callan
26.

Who Invented Laser?

A. William Friese­Greene
B. Arthur Fry
C. Gordon Gould
D. Otto von Guericke
Answer» D. Otto von Guericke
27.

Who Invented Internet Protocol?

A. Vint Cerf
B. David Chaum
C. Georges Claude
D. Josephine Cochrane
Answer» B. David Chaum
28.

Who Invented Induction Coil?

A. Edwin Howard Armstrong
B. John Barber
C. Edwin Beard Budding
D. Nicholas Callan
Answer» E.
29.

Who invented Helicopter?

A. Copernicus
B. Sikorsky
C. Cockrell
D. Drinker
Answer» C. Cockrell
30.

Who invented FM radio?

A. Edwin Howard Armstrong
B. Thomas Alva Edison
C. Graham Bell
D. Galileo
Answer» B. Thomas Alva Edison
31.

Who invented Emoji in 1999?

A. Shigetaka Kurita
B. Hemang Amin
C. Lee Loong
D. Hamilton
Answer» B. Hemang Amin
32.

Who invented first working laser?

A. A. H. Taylor
B. W. K. Roentgen
C. T. H. Maiman
D. Fred Morrission
Answer» D. Fred Morrission
33.

Who Invented Electric Stove?

A. Lloyd Groff Copeman
B. Bartolomeo Cristofori
C. Leonardo da Vinci
D. Philip Diehl
Answer» B. Bartolomeo Cristofori
34.

Who Invented Elevator Safety Brake ?

A. Alfred Bernhard Nobel
B. Elisha Graves Otis
C. Percy LeBaron Spencer
D. Garrett Augustus Morgan
Answer» C. Percy LeBaron Spencer
35.

Who invented ECG?

A. Hans Berger
B. Einthoven
C. G. Bist
D. None of the above
Answer» C. G. Bist
36.

Who Invented Dishwasher?

A. Vint Cerf
B. David Chaum
C. Georges Claude
D. Josephine Cochrane
Answer» E.
37.

Who Invented Dynamite Explosive Material?

A. Alfred Bernhard Nobel
B. Levi Strauss
C. Percy LeBaron Spencer
D. Garrett Augustus Morgan
Answer» B. Levi Strauss
38.

Who invented E­Mail?

A. Tim Berners­-Lee
B. James Gosling
C. Vinton Cerf
D. VA Shiva Ayyadurai
Answer» E.
39.

Who invented bluetooth?

A. Kirkpatrick Macmillan
B. Benjamin Franklin
C. Dr. Jaap Haartsen
D. Charles Babbage
Answer» D. Charles Babbage
40.

Who invented "Coca Cola"?

A. Floyd Paxton
B. Les Paul
C. John Pemberton
D. Forrest Parry
Answer» D. Forrest Parry
41.

Who Invented Ceiling fan?

A. Lloyd Groff Copeman
B. Bartolomeo Cristofori
C. Leonardo da Vinci
D. Philip Diehl
Answer» E.
42.

Who Invented Contact Lens ?

A. Joel Houghton
B. Ruth Graves Wakefield
C. Adolf Gaston Eugen Fick
D. John Stith Pemberton
Answer» D. John Stith Pemberton
43.

Who invented Aerosol can?

A. Erik Rotheim
B. Erik Mathew
C. Erik Tim
D. Eric Flayer
Answer» B. Erik Mathew
44.

Who invented Automobiles using gasoline?

A. Karl Benz
B. Kirk Macmillan
C. Thomas Alva Edison
D. William Ford
Answer» B. Kirk Macmillan
45.

Who Invented airbag?

A. Wright brothers
B. Reynold B. Johnson
C. Assen Jordanoff
D. Ken Kutaragi
Answer» D. Ken Kutaragi
46.

Who invented Antibiotics?

A. Joseph Lister
B. William Harvey
C. Robert Knock
D. Alexander Fleming
Answer» E.
47.

Who Discovered The Nucleus of a Cell?

A. Otto Hahn
B. John Dalton
C. Robert Brown
D. Marie Curie
Answer» D. Marie Curie
48.

Who discovered X-Ray?

A. Wilhelm Rontgen
B. William Lee
C. X Rollswick
D. I Thompson
Answer» B. William Lee
49.

Who discovered X-rays?

A. W. C. Roentgen
B. Albert Einstein
C. Samuel Cohen
D. Edward Taylor
Answer» B. Albert Einstein
50.

Who discovered Uranus?

A. Sir Isaac Newton
B. William Henry Fox Talbot
C. William Herschel
D. Nicolaus Copernicus
Answer» D. Nicolaus Copernicus