In which decade were the first successful diode and triode vacuum tubes invented?
- A. 1800s
- B. 1850s
- C. 1880s
- D. 1900s
Correct Answer: D. 1900s
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“May Day” is celebrated to remember the killings of labour protest of 1st May 1886, in:
- A. Moscow
- B. Tehran
- C. Manchester
- D. Chicago
Correct Answer: D. Chicago
What is the largest lake in the world?
- A. Caspian Sea
- B. Lake Superior
- C. Lake Victoria
- D. None of these
Correct Answer: A. Caspian Sea
Who invented the World Wide Web?
- A. Karl Benz
- B. Chester Carlson
- C. Mary Anderson
- D. Tim Berners Lee
Correct Answer: D. Tim Berners Lee (1989)
If CAKE coded as 1357 and CUP coded as 148, Encode PECAKE?
- A. 784351
- B. 871357
- C. 345781
- D. 874315
Correct Answer: B. 871357
“God is the Greatest” is the Motto of which country?
- A. Iran
- B. Iraq
- C. Turkey
- D. Saudi Arabia
Correct Answer: B. Iraq
Who invented the Richter Scale?
- A. Charles Richter
- B. Robert H. Goddard
- C. Otto Wichterle
- D. Charles Parsons
Correct Answer: A. Charles Richter (1935)