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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 16
41.
For a second order instrument, the optimum range of ξ (damping ratio), which gives good frequency response over a wide range of frequencies is
0.5 to 0.6
0.6 to 0.7
0.7 to 0.8
0.8 to 1.0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
If the connection of two-port is such that the transmission matrix of the overall network is the product of the transmission matrices of the individual networks, what type of connection is it?
Series connection
Cascade connection
Parallel connection
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
A 3 x 8 decoder with two enable inputs is to be used to address 8 blocks of memory. What will be the size of each memory block when addressed from a sixteen bit bus with two MSBs used to enable the decoder?
2 K
4 K
16 K
64 K
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
What is the purpose of a start in RS232 serial communication protocol?
To synchronise receiver for receiving every byte
To synchronise receiver for receiving a sequence of byte
Acts as a parity bit
To synchronise receiver for receiving the last byte
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Time delay produced by an instruction code given below using 2 MHz clock is:
MVI A, FFH
LOOP: DCR A
JNZ Loop
1783 μs
1787 μs
1781 μs
1797 μs
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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