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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 16
31.
What was the first commercial geostationary communication satellite?
INTELSAT 1
ECHO
INSAT-1A
SPUTNIK
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.

Assertion (A): When all inputs of a NAND-gate are shorted to get a one input, one output gate, it becomes an inverter.

Reason (R): When all inputs of a NAND-gate are at logic 'O' level, the output is at logic 'I' level.

Both A and R are individually true and R is the correct explanation of A
Both A and R are individually true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Which of the following devices has the 'negative resistance' characteristic?
Reflex klystron
Gunn diode
P-N-P transistor
Magnetron
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Which of the following may result in instability problem?
Large error
High selectivity
High gain
Noise
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which of the following are included in the architecture of a computer?
  1. Addressing modes, CPU
  2. Instruction set, data formats
  3. Secondary memory, operating system
Select the correct answer from the codes given below:
1 and 2
1 and 3
2 and 3
3 only
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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