MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Engineering (MCQ) questions & answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For (n,k) binary BCH code, how are the parity check bits (n k) specified? |
| A. | m + t |
| B. | m - t |
| C. | mt |
| D. | m/t |
| Answer» D. m/t | |
| 2. |
The minimum distance of linear block code (d) is equal to minimum number of rows or columns of H, whose_____ is equal to zero vector. |
| A. | sum |
| B. | difference |
| C. | product |
| D. | divison |
| Answer» B. difference | |
| 3. |
Assuming that the channel is noiseless, if TV channels are 8 kHz wide with the bits/sample = 3Hz and signalling rate = 16 x 10 samples/second, then what would be the value of data rate? |
| A. | 16 Mbps |
| B. | 24 Mbps |
| C. | 48 Mbps |
| D. | 64 Mbps |
| Answer» D. 64 Mbps | |
| 4. |
For a (6,4) block code where n = 6, k = 4 and d = 3, how many errors can be corrected by this code? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 5. |
Which buffer size is required by the interleaved codes at the transmitter for the accumulation of code words? |
| A. | Small |
| B. | Medium |
| C. | Large |
| D. | All of the above |
| Answer» D. All of the above | |
| 6. |
Consider the assertions related to decoding process of cyclic code. Which among the following is a correct sequence of steps necessary for the correction of errors?A. Syndrome determination after the division of r(x) & g(x) B. Addition of error pattern to received code wordC. Selection of error pattern corresponding to the syndromeD. Preparation of table comprising error patterns and syndromes |
| A. | A, B, C, D |
| B. | B, A, D, C |
| C. | C, B, D, A |
| D. | D, A, C, B |
| Answer» E. | |
| 7. |
Which among the below stated logical circuits are present in encoder and decoder used for the implementation of cyclic codes?A. Shift RegistersB. Modulo-2 AddersC. CountersD. Multiplexers |
| A. | A & B |
| B. | C & D |
| C. | A & C |
| D. | B & D |
| Answer» B. C & D | |
| 8. |
Decoding of RS code comprises the determination of error _______A. positionB. magnitudeC. angleD. frequency |
| A. | A & B |
| B. | C & D |
| C. | A & C |
| D. | B & D |
| Answer» B. C & D | |
| 9. |
For a Gaussian channel of 1 MHz bandwidth with the signal power to noise spectral density ratio of about 10 Hz, what would be the maximum information rate? |
| A. | 12000 bits/sec |
| B. | 14400 bits/sec |
| C. | 28000 bits/sec |
| D. | 32500 bits/sec |
| Answer» C. 28000 bits/sec | |
| 10. |
For fixed symbol rate, increase in bits/symbol ultimately improves r/B bits/s/Hz & hence, regarded as _____. |
| A. | Power efficiency |
| B. | Spectral efficiency |
| C. | Transmission efficiency |
| D. | Modulation eficiency |
| Answer» C. Transmission efficiency | |
| 11. |
For designing a communication system, which among the following parameters should be maximum?A. Transmission rateB. Received signal-to-noise ratioC. Error probabilityD. Bandwidth requirement |
| A. | A & B |
| B. | C & D |
| C. | A & C |
| D. | B & D |
| Answer» B. C & D | |
| 12. |
d is defined as the Euclidean distance of coded signal in terms of _________ possible distance between all allowed sequences. |
| A. | smallest |
| B. | largest |
| C. | average |
| D. | constant |
| Answer» B. largest | |
| 13. |
To obtain the transfer function of a convolutional code, the splitting of all-zero state takes place into ___A. starting stateB. first return to all-zero stateC. in-between state |
| A. | A & B |
| B. | B & C |
| C. | A & C |
| D. | None of the above |
| Answer» B. B & C | |