हवाई जहाज के ‘ब्लैक बाक्स’ – McqOptions

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1.	हवाई जहाज के ‘ब्लैक बाक्स’ का क्या रंग होता है ?
A.	काला
B.	नारंगी
C.	बैंगनी
D.	लाल
Answer» C. बैंगनी

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