Here is the Graduate Aptitude Test in Engineering question paper of Instrumentation Engineering

If the A-matrix of the state space model of a SISO linear time invariant system is rank deficient, the transfer function of the system must have
(A) a pole with a positive real part
(B) a pole with a negative real part
(C) a pole with a positive imaginary part
(D) a pole at the origin

Signals from fifteen thennocouples are multiplexed and each one is sampled once_per second with a 16-bit ADC The digital samples are converted by a parallel to senal converter to generate a senal PCM signal This PCM signal is frequency modulated with FSK modulator with 1200 lIz as I and 960 Hz as 0 The minunum band allocation required for faithful reproduction of the signal by the
FSK receiver without considenng noise is

(A)S4OHzto 1320Hz (B)96OHzto 1200Hz
(C)IO8OHztol32OHz (D)72OHztoI44OHz

The maximum frequency of a force signal in Hz below the natural frequency withm its useful mid- band range of measurement, for which the gam amplitude is less than 1 05, approximately is,
(A)35 (B)350 (C) 3500 (D)16×103

GATE Instrumentation Engineering Question Paper





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