1) What is an ideal value of attenuation for the frequencies in pass band especially for a cascade configuration?
a. Zero
b. Unity
c. Infinity
d. Unpredictable
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Answer
Explanation
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ANSWER: Zero
Explanation:
No explanation is available for this question!
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2) It is possible to overcome the drawback of m-derived filter by connecting number of sections in addition to prototype & m-derived sections with terminating __________
a. One-fourth sections
b. Half sections
c. Square of three-fourth sections
d. Full sections
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Answer
Explanation
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ANSWER: Half sections
Explanation:
No explanation is available for this question!
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3) Which value of 'm' is selected in a composite filter, while connecting the terminating sections in order to acquire proper impedance matching and constant characteristic impedance throughout the passband?
a. 0.3
b. 0.6
c. 0.9
d. 0.12
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Answer
Explanation
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ANSWER: 0.6
Explanation:
No explanation is available for this question!
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4) In band elimination filter, the frequency of resonance of individual arms is geometric _________
a. Mean of two cut-off frequencies
b. Difference of two cut-off frequencies
c. Product of two cut-off frequencies
d. Division of two cut-off frequencies
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Answer
Explanation
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ANSWER: Mean of two cut-off frequencies
Explanation:
No explanation is available for this question!
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5) For the design of prototype high pass filter T section, what would be the value of inductor if design impedance and cut-off frequency are 600 ohm and 1500 Hz respectively?
a. 19.89 mH
b. 31.83 mH
c. 40.13 mH
d. 51.83 mH
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Answer
Explanation
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ANSWER: 31.83 mH
Explanation:
No explanation is available for this question!
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6) What do the high pass filters generally comprise of?
A. Capacitive series arm
B. Capacitive shunt arm
C. Inductive series arm
D. Inductive shunt arm
a. A & D
b. A & C
c. B & C
d. B & D
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Answer
Explanation
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ANSWER: A & D
Explanation:
No explanation is available for this question!
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7) Referring to the characteristics of π-section low pass filter given below, what would be the phase shift at 2kHz in the pass band?
a. 0.7731 radian
b. 1.0471 radian
c. 2.551 radian
d. 3.991 radian
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Answer
Explanation
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ANSWER: 1.0471 radian
Explanation:
No explanation is available for this question!
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8) For a constant k type LPF with T- section, with the cut-off frequency of about 4kHz, what will be the value of stop-band attenuation at 8 kHz?
a. 10.03 dB
b. 22.87 dB
c. 35.04 dB
d. 50.02 dB
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Answer
Explanation
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ANSWER: 22.87 dB
Explanation:
No explanation is available for this question!
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9) While designing a constant-k low pass filter (T-section) shown below, what would be the value of capacitor if L/2 = 20mH, R0 = 500 Ω and fc = 5 kHz?
a. 0.0635 μF
b. 0.10 μF
c. 0.1273 μF
d. 0.20 μF
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Answer
Explanation
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ANSWER: 0.1273 μF
Explanation:
No explanation is available for this question!
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10) Which type of filter is shown below?
a. Low pass filter
b. High pass filter
c. Band pass filter
d. Band elimination filter
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Answer
Explanation
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ANSWER: Band elimination filter
Explanation:
No explanation is available for this question!
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