Linear Programming Problem Set 3
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This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on Linear Programming Problem Set 3
Q1 | is the reference input minus the primary feedback.
- manipulated variable
- zero sequence
- actuating signal
- primary feedback
Q2 | With feedback _____ increases.
- system stability
- sensitivity
- gain
- effects of disturbing signals
Q3 | By which of the following the system response can be tested better ?
- ramp input signal
- sinusoidal input signal
- unit impulse input signal
- exponentially decaying signal
Q4 | In a system low friction co-efficient facilitates
- reduced velocity lag error
- increased velocity lag error
- increased speed of response
- reduced time constant of the system
Q5 | Spring constant in force-voltage analogy is analogous to
- capacitance
- reciprocal of capacitance
- current
- resistance
Q6 | The frequency and time domain are related through which of the following?
- laplace transform and fourier integral
- laplace transform
- fourier integral
- either (b) or (c)
Q7 | An increase in gain, in most systems, leads to
- smaller damping ratio
- larger damping ratio
- constant damping ratio
- none of the above
Q8 | specified ________ input signal.
- acceleration
- velocity
- position
- all of the above
Q9 | A conditionally stable system exhibits poor stability at
- low frequencies
- reduced values of open loop gain
- increased values of open loop gain
- none of the above
Q10 | The type 0 system has ______ at the origin.
- no pole
- net pole
- simple pole
- two poles
Q11 | The type 1 system has ______ at the origin.
- no pole
- net pole
- simple pole
- two poles
Q12 | The type 2 system has ______ at the origin.
- no net pole
- net pole
- simple pole
- two poles
Q13 | The position and velocity errors of a type-2 system are
- constant, constant
- constant, infinity
- zero, constant
- zero, zero
Q14 | Velocity error constant of a system is measured when the input to the system is unit _______ function.
- parabolic
- ramp
- impulse
- step
Q15 | In case of type-1 system steady state acceleration is
- unity
- infinity
- zero
- 10
Q16 | If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is
- not necessarily stable
- stable
- unstable
- always unstable
Q17 | Which of the following is the best method for determining the stability and transient response ?
- root locus
- bode plot
- nyquist plot
- none of the above
Q18 | Phase margin of a system is used to specify which of the following ?
- frequency response
- absolute stability
- relative stability
- time response
Q19 | Addition of zeros in transfer function causes which of the following ?
- lead-compensation
- lag-compensation
- lead-lag compensation
- none of the above
Q20 | technique is not applicable to nonlinear system ?
- nyquist criterion
- quasi linearization
- functional analysis
- phase-plane representation
Q21 | In order to increase the damping of a badly underdamped system which of following compensators may be used ?
- phase-lead
- phase-lag
- both (a) and (b)
- either (a) and (b)
Q22 | The phase lag produced by transportation relays
- is independent of frequency
- is inverseh’proportional to frequency
- increases linearly with frequency
- decreases linearly with frequency
Q23 | Which of the following can be measured by the use of a tachogenerator ?
- acceleration
- speed
- speed and acceleration
- displacement
Q24 | is not a final control element.
- control valve
- potentiometer
- electropneumatic converter
- servomotor
Q25 | Which of the following is the definition of proportional band of a controller ?
- the range of air output as measured variable varies from maximum to minimum
- the range of measured variables from set value
- the range of measured variables through which the air output changes from maximum to minimum
- any of the above