IndiaBIX

Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 17
31.
Which one of the following statements is correct?
AGC in radio receivers will keep the total signal output fairly constant but the noise component will be reduced; with the result the ratio will improve.
AGC in radio receivers is a linear operation w.r.t. both signals and noise
Sudden changes in the output while tuning, which may cause damage to the components, is an unavoidable feature of AGC
AGC operation is independent of the filter components used in AGC circuit.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Which of the following is not a conducting material?
Copper
Tungsten
Germanium
Platinum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
The time domain behaviour of an RL circuit is represented L + Ri = V0 (1 + Be-Rt/L sint)u(t)
For an initial current of i(0) = , the steady state value of the current is given by
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Which of the following is true?
A silicon wafer heavily doped boron is a p+ substrate
A silicon wafer lightly doped boron is a p+ substrate
A silicon wafer heavily doped arsenic is a p+ substrate
A silicon wafer lightly doped arsenic is a p+ substrate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
A standard waveguide W R90 has inside wall dimensions of a = 2.286 cm and b = 1.016 cm. What is the cut-off wavelength for TE01 mode?
4.572 cm
2.286 cm
2.032 cm
1.857 cm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers