1) If a system is said to have a damping ξ = 0.5532 with the natural frequency ωn = 2 rad/sec, what will be the value of resonant frequency (ωr)?
a. 1.2456 rad/s
b. 1.7352 rad/s
c. 2.3421 rad/s
d. 3.66 rad/s
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Answer
Explanation
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ANSWER: 1.2456 rad/s
Explanation:
No explanation is available for this question!
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2) In frequency response, the resonance frequency is basically a measure of _______ of response.
a. Speed
b. Distance
c. Angle
d. Curvature
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Answer
Explanation
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ANSWER: Speed
Explanation:
No explanation is available for this question!
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3) If the resonant peak is estimated to be '5', which among the following would be the correct value of damping?
a. ξ = 0.3
b. ξ = 1
c. ξ = 3.2
d. ξ = 5.55
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Answer
Explanation
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ANSWER: ξ = 0.3
Explanation:
No explanation is available for this question!
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4) If the damping of the system becomes equal to zero, which condition of the resonant frequency is likely to occur?
a. ω r = ω d
b. ω r > ω n
c. ω r < ω n
d. ω r = ω n
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Answer
Explanation
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ANSWER: ωr = ωn
Explanation:
No explanation is available for this question!
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5) At which condition of 'ξ', resonant peak does not exist and its maximum value is considered to be unity along with zero resonant frequency?
a. 0 < ξ < 0.707
b. ξ > 0.707
c. ξ = 0
d. ξ = 1
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Answer
Explanation
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ANSWER: ξ > 0.707
Explanation:
No explanation is available for this question!
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6) If 'ξ' approaches to zero, the peak resonance would ________
a. Also be zero
b. Be unity
c. Tend to infinity
d. Become equal to peak overshoot
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Answer
Explanation
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ANSWER: Tend to infinity
Explanation:
No explanation is available for this question!
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7) How is the sinusoidal transfer function obtained from the system transfer function in frequency domain?
a. Replacement of 'jω' by 's'
b. Replacement of 's' by 'ω'
c. Replacement of 's' by 'jω'
d. Replacement of 'ω' by 's'
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Answer
Explanation
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ANSWER: Replacement of 's' by 'jω'
Explanation:
No explanation is available for this question!
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8) Which plots in frequency domain represent the two separate plots of magnitude and phase against frequency in logarithmic value?
a. Polar plots
b. Bode plots
c. Nyquist plots
d. All of the above
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Answer
Explanation
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ANSWER: Bode plots
Explanation:
No explanation is available for this question!
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9) If a linear system is subjected to an input r(t) = Asin(ωt), what output will be generated?
a. c(t) = B sin (ωt + Φ)
b. c(t) = B cos (ωt + Φ)
c. c(t) = B tan (ωt + Φ)
d. c(t) = B cot (ωt + Φ)
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Answer
Explanation
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ANSWER: c(t) = B sin (ωt + Φ)
Explanation:
No explanation is available for this question!
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10) The magnitude & phase relationship between _________input and the steady state output is called as frequency domain.
a. Step
b. Ramp
c. Sinusoidal
d. Parabolic
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Answer
Explanation
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ANSWER: Sinusoidal
Explanation:
No explanation is available for this question!
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