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- Question
Match the following:
List I (F.T and F.S) List II (Properties) A. Fourier Series 1. Discrete, Periodic B. Fourier Transform 2. Continuous, Periodic C. Discrete Time Fourier 3. Discrete aperiodic D. Discrete Fourier Transform 4. Continuous, aperiodic
Options- A. A-3, B-4, C-2, D-1
- B. A-1, B-2, C-4, D-3
- C. A-3, B-2, C-4, D-1
- D. A-1, B-4, C-2, D-3
- Correct Answer
- A-3, B-4, C-2, D-1
- 1. In a single phase full wave ac regulator using two thyristors only, the gate circuits of the two thyristors
Options- A. must be isolated
- B. may or may not be isolated
- C. should be preferably, isolated
- D. should not be isolated Discuss
- 2. In a ripple counter,
Options- A. whenever a flip flop sets to 1, the next higher FF toggles
- B. whenever a flip flop sets to 0, the next higher FF remains unchanged
- C. whenever a flip flop sets to 1, the next higher FF faces race condition
- D. whenever a flip flop sets to 0, the next higher FF faces race condition Discuss
- 3. Maximum efficiency of class B power amplifier is 50%.
Options- A. True
- B. False Discuss
- 4. Which of the following commutation methods is the overall circuit under damped?
Options- A. Class A
- B. Class B
- C. Class C
- D. Both class A and Class B Discuss
- 5. The primary constants of a transmission line are
Options- A. R and L
- B. R, L and C
- C. R and C
- D. R, L, G and C Discuss
- 6. For the strip line in the given figure the capacitance per unit length =
Options- A.
- B.
- C.
- D.
Discuss
- 7. In which mode of circular waveguide does the attenuation continuously decrease as frequency is increased?
Options- A. TE01
- B. TE11
- C. TE05
- D. TE21 Discuss
- 8. The beam of a radar should be
Options- A. very narrow
- B. very wide
- C. neither too narrow nor very wide
- D. either (b) or (c) Discuss
- 9. If temperature is increased, the temperature coefficient of a metal
Options- A. increases
- B. decreases
- C. may increase or decrease
- D. remains constant Discuss
- 10. In an homogeneous dielectric subjected to an electric field E, the dipole moment per unit volume is ?0(?r - 1) E.
Options- A. True
- B. False Discuss
More questions
Correct Answer: must be isolated
Correct Answer: whenever a flip flop sets to 1, the next higher FF toggles
Explanation:
In a ripple counter the effect ripples through the counter.
Correct Answer: False
Explanation:
Maximum efficiency for class B-operation can be 78.5% .
Correct Answer: Both class A and Class B
Correct Answer: R, L, G and C
Correct Answer:
Explanation:
frads/unit length.
Correct Answer: TE01
Correct Answer: very narrow
Correct Answer: decreases
Correct Answer: True
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