Sawaal

 Inventions Questions

Popular Latest Rated
Q:

Who invented Bifocal Lens?

A) John Adams B) Benjamin Franklin
C) James Madison D) Thomas Jefferson
 
Answer & Explanation Answer: B) Benjamin Franklin

Explanation:

Benjamin Franklin has long been credited with the invention of bifocal lenses and he was the first to wear bifocal lenses. He did not produce them himself but instead had some optician in London or France make them for him to overcome Presbyopia, a condition that Franklin suffered. He was tired switching between lenses for far and near sightedness. And that resulted in inventing Bifocal Lenses.

Report Error

View Answer Report Error Discuss

Filed Under: Inventions
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank PO

6 4657
Q:

The credit of inventing the tv goes to

A) Philo Farnsworth B) John Logie Baird
C) Philo Farnsworth D) None of the above
 
Answer & Explanation Answer: A) Philo Farnsworth

Explanation:

The credit of inventing the television goes to Philo Farnsworth.

Report Error

View Answer Report Error Discuss

Filed Under: Inventions
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

4 4629
Q:

Who Invented Contact Lens ?

A) Joel Houghton B) Ruth Graves Wakefield
C) Adolf Gaston Eugen Fick D) John Stith Pemberton
 
Answer & Explanation Answer: C) Adolf Gaston Eugen Fick

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

3 4536
Q:

Who discovered Insulin

A) William Harvey B) Louis Pasteur
C) F.G.Banting D) Alexander Fleming
 
Answer & Explanation Answer: D) Alexander Fleming

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

3 4490
Q:

Who is the inventor of  printing press?

A) Johann Gutenberg B) William Lee
C) George Eastman D) R.W Thomson
 
Answer & Explanation Answer: A) Johann Gutenberg

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

1 4405
Q:

 What item, originally called the ‘Whirlwind’, was invented by Ives McGaffey in 1869?

A) Blender B) Electric mixer
C) Washing machine D) Vacuum cleaner
 
Answer & Explanation Answer: B) Electric mixer

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

2 4332
Q:

Streptomycin was invented by

A) Fleming B) Marie Curie
C) Walksman D) None of these
 
Answer & Explanation Answer: C) Walksman

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

1 4243
Q:

Who Invented The World Wide Web ?

A) Sir Timothy John B) Earle Dickson
C) James Rineose D) Laszlo Jozsef Biro
 
Answer & Explanation Answer: A) Sir Timothy John

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

0 4205