Practice Test: Question Set - 03
1. Which of the following is the definition of proportional band of a controller?
- (A) The range of air output as measured variable
varies from maximum to minimum
- (B) The range of measured variables from set
value
- (C) The range of measured variables through
which the air output changes from maximum to minimum
- (D) Any of the above
2. Which of the following is the nonlinearity caused by servomotor?
- (A) Static friction
- (B) Backlash
- (C) Saturation
- (D) None of the above
3. _________ directly converts temperature into voltage.
- (A) Thermocouple
- (B) Potentiometer
- (C) Gear train
- (D) LVDT
4. Which of the following is exhibited by Root locus diagrams?
- (A) The poles of the transfer function for a set
of parameter values
- (B) The bandwidth of the system
- (C) The response of a system to a step input
- (D) The frequency response of a system
5. Regenerative feedback implies feedback with
- (A) Oscillations
- (B) Step input
- (C) Negative sign
- (D) Positive sign
6. For open control system which of the following statements is incorrect?
- (A) Less expensive
- (B) Recalibration is not required for
maintaining the required quality of the output
- (C) Construction is simple and maintenance easy
- (D) Errors are caused by disturbances
7. In a system zero initial condition means that
- (A) The system is at rest and no energy is
stored in any of its components
- (B) The system is working with zero stored
energy
- (C) The system is working with zero reference
signals
- (D) None of the above
8. Which of the following is the best method for determining the stability and transient response?
- (A) Root locus
- (B) Bode plot
- (C) Nyquist plot
- (D) None of the above
9. Technique gives quick transient and stability response
- (A) Root locus
- (B) Bode
- (C) Nyquist
- (D) Nichols
10. The first order control system, which is well designed, has a
- (A) Small bandwidth
- (B) Negative time constant
- (C) Large negative transfer function pole
- (D) None of the above
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