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quize upsc
01/10/2021
Upsc dream
25/06/2021
New dedigate book
Cryogenic engines find applications in:
(A) sub-marine propulsion
(B) frost-free refrigerators
(C) rocket technology
(D) research in superconductivity
The tehnique used to trasmit audio signals in television broadcasts
(A) Amplitude modulation
(B) Frequency modulation
(C) Pulse Code modulation
(D) Time Division Multiplexing
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