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Electronics and Communication Engineering - Automatic Control Systems

Exercise : Automatic Control Systems - Section 6
16.
The given figure shows log magnitude versus ω plots of a system for different values of gain. For this system
curve 1 shows highest gain margin and curve 2 shows poorest gain margin
gain margins shown by the three curves are equal
curve 1 shows poorest gain margin and curve 3 shows highest gain margin
curve 3 shows poorest gain margin while curve 1 shows highest gain margin
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The purpose of series quadrature windings in amplidyne is to
neutralize the effect of armature reaction
reduce commutation difficulties
increase the gain
increase response time
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
For the transport lag G(jω) = e-jωT, the phase angle
is constant
varies linearly with frequency
varies linearly with low frequencies only
values as per square law
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In classical analogue, torque is analogous to
current
voltage
charge
voltage gradient
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The pole zero plot of the given figure is for
non-minimum phase function
minimum phase function
all pass function
either (b) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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