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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 13
1.
Following state diagram shows clocked sequential circuit:

How many states the sequential circuit has?
6
7
5
4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Which of the following oscillators is used for the generation of high frequencies?
R-C phase shift oscillator
Wien bridge oscillator
L-C oscillator
Blocking oscillator
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Which of the following meters cannot measure a.c. quantities?
Thermocouple
Hot wire
P.M.M.C.
Electrodynamometer.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
For the circuit shown in the figure, D has a transition from 0 to 1 after CLK changes from 1 to 0. Assume gate delays to be negligible

Which of the following statements is true?
Q goes to 1 to the CLK transition and stays at 1
Q goes to 0 at the CLK transition and stays at 10
Q goes to 1 at the CLK transition and goes to 0 when D goes to 1
Q goes to 0 at the CLK transition and goes to 1 when D goes to 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
What is the major cause of creeping in an energy-meter?
Over compensation for friction
Mechanical vibrations
Excessive voltage across the potential coil
Stray magnetic fields
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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