Electronics and Communication Engineering - Exam Questions Papers
Exercise :: Exam Questions Papers - Exam Paper 13
1.
Following state diagram shows clocked sequential circuit:
Answer: Option C
Explanation:
2.
Which of the following oscillators is used for the generation of high frequencies?
A. R-C phase shift oscillator B. Wien bridge oscillator C. L-C oscillator D. Blocking oscillator
Answer: Option C
Explanation:
3.
Which of the following meters cannot measure a.c. quantities?
A. Thermocouple B. Hot wire C. P.M.M.C. D. Electrodynamometer.
Answer: Option C
Explanation:
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
A. Q goes to 1 to the CLK transition and stays at 1 B. Q goes to 0 at the CLK transition and stays at 10 C. Q goes to 1 at the CLK transition and goes to 0 when D goes to 1 D. Q goes to 0 at the CLK transition and goes to 1 when D goes to 1
Answer: Option C
Explanation:
5.
What is the major cause of creeping in an energy-meter?
A. Over compensation for friction B. Mechanical vibrations C. Excessive voltage across the potential coil D. Stray magnetic fields
Answer: Option A
Explanation:
