A system is highly oscillatory if
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In a two phasor servomotor, the direction of rotation of the rotating field depends on
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Which of the following is open loop system?
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The poles with greater displacement from the real axis correspond to
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The sensor generally used in incremental optical encoder is
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In force current analogue, mechanical mobility is analogous to
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Nichols chart consists of
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Magnetic amplifier is used for
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Which control action can never be used alone?
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Nyquist stability criterion uses open loop frequency response characteristics.
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In force current analogy, displacement x is analogous to
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If the poles lie in second quadrant, damping ratio is
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If poles lie in first quadrant, damping ratio is
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In a simple on-off controller with differential gap, the magnitude of differential gap determines
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Bandwidth is proportional to speed of response.
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Which of the following is correct?
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The distance of poles from origin depends on
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The permanent magnet field system of brushless dc servo- motor is generally on
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For any transfer function, the constant phase angle loci are
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The addition of a pole to the open loop transfer function pulls the root locus
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