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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 18
31.
Which of the following flip-flop is used as a latch?
J K flip-flop
R S flip-flop
T flip-flop
D flip-flop
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Which of the following transducers is most suitable for monitoring continuous variations in very fine thickness of a material?
Diaphragm
Capacitor
L.V.D.T.
Piezoelectric crystal.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
In closed loop control system, what is the sensitivity of the gain of the overall system, M to the variation in G?
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Ferromagnetic materials show hysteresis in B - H characteristic. As the magnetic field in increased slowly from zero value, what is the first process which sets the material to give net magnetization?
Growth of favourably oriented domains at the cost of other domains by reversible boundary displacements
Growth of favourably oriented domains at the cost of other domains by irreversible boundary displacements
Domain wall orientation
A combination of processes (a) and (c) above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which of the following is a microwave source with a 'cross-field' structure?
Double cavity klystron
Reflex klystron
Magnetron
Travelling wave tube
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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