General Knowledge

Sir Frank Whittle is credited with inventing the jet engine, having developed the concept and prototype in the 1930s. The other options are unrelated to the invention of the jet engine.

The word 'democracy' originates from the Greek language, combining 'demos' meaning 'people' and 'kratos' meaning 'power' or 'rule'. This reflects the concept of rule by the people.

Charles Drew pioneered the concept of blood banks by developing improved techniques for blood storage and establishing large-scale blood banks during World War II. The other options are notable figures in different fields but not related to blood banking.

Bismillah Khan was a legendary Indian musician renowned for playing the shehnai, a traditional wind instrument. Hence, the correct answer is Shehnai.

Alexandria is a well-known city located in Egypt, famous for its historical significance and the ancient Library of Alexandria.

The world's longest sea bridge connecting Hong Kong, Macau, and China is the Hong Kong-Zhuhai-Macau Bridge, often referred to as the Zhuhai Macau Bridge. It is a major infrastructure project linking these regions across the Pearl River Delta.

The barcode scanner was invented in the early 1970s, with the first commercial use occurring in 1974 when a pack of Wrigley's gum was scanned. This marks the 1970s as the correct decade for its invention.

26th January is celebrated as Republic Day in India to mark the date on which the Constitution of India came into effect in 1950, making India a sovereign republic.

Syed Ameer Ali is the author of the famous book "The Spirit of Islam," which discusses Islamic culture and philosophy. The other options are notable figures but did not write this book.

The Pena Palace is a famous Romanticist castle located in Sintra, Portugal, and is recognized as a UNESCO World Heritage Site. Therefore, option B (Portugal) is the correct answer.

The Wangchu River, also known as the Thimphu River, flows in Bhutan. It is a significant river in the country, making Bhutan the correct answer.

The longest land border in the world is between the United States and Canada, stretching over 8,800 kilometers. This makes option D the correct answer.

Historical records show that several inventions caused deaths during their testing phases. The parachute did cause fatalities, notably Franz Reichelt who died testing his parachute from the Eiffel Tower in 1912. However, the Aerowagon, an experimental Soviet high-speed railcar powered by an aircraft engine and propeller, derailed fatally in 1921 killing seven people including its inventor. Other inventions like Henri Thuile's high-speed steam locomotive also caused deaths during testing. The railway, represented here by the Aerowagon, caused multiple deaths during testing, making it the invention with the most deaths during its testing phase among the options. Dynamite and motor cars were dangerous but not specifically noted for many deaths during testing phases. Therefore, the correct answer is D (Railway).

The United Nations University is headquartered in Japan, specifically in Tokyo. Therefore, Japan is the correct answer.

Ulaanbaatar is the capital and largest city of Mongolia, making it the correct answer. The other options are capitals or cities of different countries or are incorrect.

The official language of the Association of Southeast Asian Nations (ASEAN) is English only. Therefore, the correct answer is 'One'.

The South Asian Free Trade Agreement (SAFTA) entered into force on 1 January 2006, making option C the correct answer.

Colombo is the commercial capital and largest city of Sri Lanka, often considered the capital for administrative purposes. The official legislative capital is Sri Jayawardenepura Kotte, but Colombo is widely recognized as the capital city.

Kodomoroid, the world's first android newscaster, was unveiled in Japan. It was developed by the National Institute of Advanced Industrial Science and Technology (AIST) in Japan, making Japan the correct answer.

Operation Pluto (Pipeline Under The Ocean) was a World War II operation planned and executed by the Allies, primarily involving the United States and the United Kingdom, to supply fuel to the Allied forces in Europe through undersea pipelines. Therefore, the correct answer is the U.S.

The International Day for the Elimination of Racial Discrimination is observed annually on 21 March to commemorate the Sharpeville massacre in 1960 and to promote efforts to eliminate racial discrimination worldwide.

Kazakhstan is currently the world's largest producer of uranium, significantly surpassing other countries such as Canada and Australia. This makes option B the correct answer.

The 2023 ICC Cricket World Cup was hosted by England and Wales. Therefore, option A (England) is correct, not India.

Tiangong 1 was China's first prototype space station module, which re-entered Earth's atmosphere and mostly burned up over the South Pacific in 2018. The other options refer to different Chinese space modules or stations that did not have this re-entry event.

The FBI (Federal Bureau of Investigation) was established in 1908, making option B the correct answer. This is a well-documented historical fact.