Who invented the global positioning system (GPS) structural architecture alongside Ivan Getting and Bradford Parkinson? MCQ with Answer and Explanation

Question
Who invented the global positioning system (GPS) structural architecture alongside Ivan Getting and Bradford Parkinson?
A. Gladys West
B. Alan Turing
C. Vint Cerf
D. Tim Berners-Lee
Answer: Option A
Solution (By JKSSB Mock Tests)
Gladys West's mathematical modeling of the Earth's geoid shape was critical to developing the calculations behind accurate GPS tracking.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered the primary biological pattern detailing that DNA nucleotide bases match in specific pairs ($A=T, G=C$)?
A. Rosalind Franklin
B. Francis Crick
C. James Watson
D. Erwin Chargaff
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Correct Answer: Option D

Explanation:
Chargaff's Rules established the 1:1 stoichiometric ratios of purines to pyrimidines, providing a key clue for Watson and Crick's model.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
Who discovered that elements display periodic physical attributes when arranged strictly by atomic weight values?
A. John Dalton
B. Dmitri Mendeleev and Julius Lothar Meyer
C. Antoine Lavoisier
D. Henry Moseley
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Correct Answer: Option B

Explanation:
Mendeleev and Meyer independently formulated structural periodic tables, but Mendeleev gained fame by accurately predicting undiscovered elements.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
The invention of the common household cleaning appliance known as the electric vacuum cleaner layout was patented by whom?
A. Willis Carrier
B. Thomas Edison
C. Hubert Cecil Booth and James Murray Spangler
D. Alva Fisher
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Correct Answer: Option C

Explanation:
Booth invented the large motorized vacuum pump rig in 1901, and Spangler patented the portable fan-and-bag layout which Hoover later commercialized.
This question belongs to: Static General Knowledge Inventions and Discoveries
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