Which type of frequency measuring instrument has multiple reeds of different natural frequency to measure vibrations? A. Fullarton tachometer B. Frahm Tachometer C. Both A. and B. D. None of the above

Which type of frequency measuring instrument has multiple reeds of different natural
frequency to measure vibrations?
A. Fullarton tachometer
B. Frahm Tachometer
C. Both A. and B.
D. None of the above
by

1 Answer

Answer :

B. Frahm Tachometer
by

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