Lakshya Education MCQs

Question: The term backlash is associated with
B.induction relays
C.gear trains
D.any of the above
Answer: Option C

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Question 1. A closed loop system is distinguished from open loop system by which of the following ?
  1.    Servomechanism
  2.    Feedback
  3.    Output pattern
  4.    Input pattern
Answer: Option B
Question 2. Transfer function of a system is used to calculate which of the following ?
  1.    The order of the system
  2.    The time constant
  3.    The output for any given input
  4.    The steady state gain
Answer: Option C
Question 3. In a stable control system backlash can cause which of the following ?
  1.    Underdamping
  2.    Overdamping
  3.    Poor stability at reduced values of open loop gain
  4.    Low-level oscillations
Answer: Option D
Question 4. An be extended to systems which are time-varying ?
  1.    Bode-Nyquist stability methods
  2.    Transfer functions
  3.    Root locus design
  4.    State model representatives
Answer: Option D
Question 5. As a result of introduction of negative feedback which of the following will not decrease?
  1.    Band width
  2.    Overall gain
  3.    Distortion
  4.    Instability
Answer: Option A
Question 6. In a system low friction coefficient facilitates
  1.    Reduced velocity lag error
  2.    Increased velocity lag error
  3.    Increased speed of response
  4.    Reduced time constant of the system
Answer: Option A

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