World's Quietest Room is in the _________ Country?
Correct answer: C. The U.S.A
- A. Canada
- B. United Kingdom
- C. The U.S.A
- D. Australia
Explanation
The often-cited world’s quietest room is at Orfield Laboratories in Minneapolis, United States. Its anechoic design absorbs reflected sound, allowing extremely low noise levels.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Inventions and Discoveries
Inventions and Discoveries covers the people, dates, principles and practical uses behind developments such as the wheel, printing press, telephone, electricity, radio, computer, internet, vaccines and space technology. It distinguishes an invention, which creates a device or process, from a discovery, which identifies something already present in nature.
Practise Inventions and Discoveries
286 free Inventions and Discoveries MCQs from General Knowledge, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask General Knowledge questions like this
General Knowledge is on 106 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Inventions and Discoveries questions
The Headquarters of Twitter is located in___________?
When was HIV identified?
The most powerful space telescope ever launched is __________?
Twitter was created by: ___________?
NASDA is a space agency of which country?
Name the greatest Muslim scientist who collected herbs from Spain to Syria and wrote an outstanding book "Kitab-al-Jami fi Adwiya-al-Mufrada'.