Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

Examine the following statements
  1. A small size hydraulic actuator can develop good torque.
  2. It is easy to maintain a hydraulic system leak proof.
  3. Both linear and rotatary hydraulic actuators are available.
  4. Hydraulic power is more easily available than electric power.
Which of the above statements are correct?
A:
all
B:
1 and 2 only
C:
1 and 3 only
D:
2, 3 and 4 only
Answer: C
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Gas flow resistance is defined as
A:
B:
C:
(change in gas pressure difference) x (change in gas flow rate)
D:
none of the above
Answer: A
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Which dc servomotor has minimum inertia?
A:
Slotted armature construction
B:
Surface wound armature
C:
Surface wound with stationary rotor
D:
Either (a) or (b)
Answer: C
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For the function G(s) = the poles are at
A:
s = 0 and s = ∞
B:
s = j2np where n = 0, 1, 2
C:
s = ± j2np where n = 0, 1, 2..
D:
none of the above.
Answer: C
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The pole zero plot of the given figure is for
A:
non-minimum phase function
B:
minimum phase function
C:
all pass function
D:
either (b) or (c)
Answer: A
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