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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 13
31.
For a given data rate, the bandwidth required with M-array PSK transmission is smaller than that of a binary transmission by
log2M
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
In a microprocessor, the service routine for a certain interrupt starts from a fixed location of memory which cannot be externally set, but the interrupt can be delayed or rejected. Such an interrupt is
non-maskable and non-vectored
maskable and non-vectored
non-maskable and non-vectored
maskable and vectored
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Which one of the following statements is not correct with regard to power amplifiers?
The collector current is large
They are used as the front end of multi-stage amplifiers
They are used near the end of the multi-stage amplifiers
They have a high power rating
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Which of the following cannot provide as much time interval accuracy as the oscilloscope but can capture and display eight or more signals simultaneously, something that scopes cannot do?
Logic analyzer
Digital oscilloscope
Frequency analyzer
Wave analyzer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
A DC voltage source is connected across a series R - L - C circuit. Under steady-state conditions, the applied DC voltage drops entirely across the
R only
C only
L only
R and L combination
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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