Electronics and Communication Engineering - Exam Questions Papers
Exercise :: Exam Questions Papers - Exam Paper 16
| 31. |
What was the first commercial geostationary communication satellite? |
| A. |
INTELSAT 1 | | B. |
ECHO | | C. |
INSAT-1A | | D. |
SPUTNIK |
Answer: Option A
Explanation:
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| 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. |
| A. |
Both A and R are individually true and R is the correct explanation of A | | B. |
Both A and R are individually true but R is not the correct explanation of A | | C. |
A is true but R is false | | D. |
A is false but R is true |
Answer: Option B
Explanation:
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| 33. |
Which of the following devices has the 'negative resistance' characteristic? |
| A. |
Reflex klystron | | B. |
Gunn diode | | C. |
P-N-P transistor | | D. |
Magnetron |
Answer: Option B
Explanation:
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| 34. |
Which of the following may result in instability problem? |
| A. |
Large error | | B. |
High selectivity | | C. |
High gain | | D. |
Noise |
Answer: Option C
Explanation:
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| 35. |
Which of the following are included in the architecture of a computer? - Addressing modes, CPU
- Instruction set, data formats
- Secondary memory, operating system
Select the correct answer from the codes given below: |
Answer: Option A
Explanation:
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