MCQOPTIONS
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MCQOPTIONS
This section includes 49 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Storage of 1 KB means the following number of bytes~! |
| A. | 1000 |
| B. | 964 |
| C. | 1024 |
| D. | 1064 |
| Answer» D. 1064 | |
| 2. |
When an input signal 1 is applied to a NOT gate, the output is ___________.~! |
| A. | 0 |
| B. | 1 |
| C. | Either 0 & 1 |
| D. | None of the above |
| Answer» B. 1 | |
| 3. |
In case of OR gate, no matter what the number of inputs, a%! |
| A. | 1 at any input causes the output to be at logic 1 |
| B. | 1 at any input causes the output to be at logic 0 |
| C. | 0 any input causes the output to be at logic 0 |
| D. | 0 at any input causes the output to be at logic 1. |
| Answer» B. 1 at any input causes the output to be at logic 0 | |
| 4. |
Which of the following gate is a two-level logic gate%! |
| A. | OR gate |
| B. | NAND gate |
| C. | EXCLUSIVE OR gate |
| D. | NOT gate |
| Answer» D. NOT gate | |
| 5. |
Digital computers are more widely used as compared to analog computers, because they are%! |
| A. | Less expensive |
| B. | Always more accurate and faster |
| C. | Useful over wider ranges of problem types |
| D. | Easier to maintain |
| Answer» D. Easier to maintain | |
| 6. |
The NOR gate is OR gate followed by ___________.%! |
| A. | AND gate |
| B. | NAND gate |
| C. | NOT gate |
| D. | None of the above |
| Answer» D. None of the above | |
| 7. |
The binary code of (21.125)10 is%! |
| A. | 10101.001 |
| B. | 10100.001 |
| C. | 10101.010 |
| D. | 10100.111 |
| Answer» B. 10100.001 | |
| 8. |
What is/are the configurable functions of each and every IOBs connected around the FPGA device from the operational point of view?%! |
| A. | Input operation |
| B. | Tristate output operation |
| C. | Bi-directional I/O pin access |
| D. | All of the above |
| Answer» E. | |
| 9. |
Pick out the CORRECT statement:%! |
| A. | In a positional number system, each symbol represents the same value irrespective of its position |
| B. | The highest symbol in a position number system as a value equal to the number of symbols in the system |
| C. | It is not always possible to find the exact binary |
| D. | Each hexadecimal digit can be represented as a sequence of three binary symbols. |
| Answer» D. Each hexadecimal digit can be represented as a sequence of three binary symbols. | |
| 10. |
*$_What is/are the configurable functions of each and every IOBs connected around the FPGA device from the operational point of view?? |
| A. | Input operation |
| B. | Tristate output operation |
| C. | Bi-directional I/O pin access |
| D. | All of the above |
| Answer» E. | |
| 11. |
*$_The NOR gate is OR gate followed by ___________.? |
| A. | AND gate |
| B. | NAND gate |
| C. | NOT gate |
| D. | None of the above |
| Answer» D. None of the above | |
| 12. |
*$_Pick out the CORRECT statement:? |
| A. | In a positional number system, each symbol represents the same value irrespective of its position |
| B. | The highest symbol in a position number system as a value equal to the number of symbols in the system |
| C. | It is not always possible to find the exact binary |
| D. | Each hexadecimal digit can be represented as a sequence of three binary symbols. |
| Answer» D. Each hexadecimal digit can be represented as a sequence of three binary symbols. | |
| 13. |
*$_Which of the following gate is a two-level logic gate? |
| A. | OR gate |
| B. | NAND gate |
| C. | EXCLUSIVE OR gate |
| D. | NOT gate |
| Answer» D. NOT gate | |
| 14. |
*$_The binary code of (21.125)10 is? |
| A. | 10101.001 |
| B. | 10100.001 |
| C. | 10101.010 |
| D. | 10100.111 |
| Answer» B. 10100.001 | |
| 15. |
*$_Digital computers are more widely used as compared to analog computers, because they are? |
| A. | Less expensive |
| B. | Always more accurate and faster |
| C. | Useful over wider ranges of problem types |
| D. | Easier to maintain |
| Answer» D. Easier to maintain | |
| 16. |
%_In which of the following base systems is 123 not a valid number?_% |
| A. | Base 10 |
| B. | Base 16 |
| C. | Base 8 |
| D. | Base 3 |
| Answer» E. | |
| 17. |
%_Most of the digital computers do not have floating point hardware because_% |
| A. | Floating point hardware is costly |
| B. | It is slower than software |
| C. | It is not possible to perform floating point addition by hardware |
| D. | Of no specific reason |
| Answer» B. It is slower than software | |
| 18. |
%_Which type of CPLD packaging can provide maximum number of pins on the package due to small size of the pins?_% |
| A. | PLCC |
| B. | QFP |
| C. | PGA |
| D. | BGA |
| Answer» E. | |
| 19. |
%_Digital circuit can be made by the repeated use of ____________% |
| A. | OR gates |
| B. | NOT gates |
| C. | NAND gates |
| D. | None of the above |
| Answer» D. None of the above | |
| 20. |
%_The only function of NOT gate is to ___________._% |
| A. | Stop signal |
| B. | Invert input signal |
| C. | Act as a universal gate |
| D. | None of the above |
| Answer» C. Act as a universal gate | |
| 21. |
%_A hexadecimal odometer displays F 52 F. The next reading will be_% |
| A. | F52E |
| B. | G52F |
| C. | F53F |
| D. | F53O |
| Answer» E. | |
| 22. |
%_The inputs of a NAND gate are connected together. The resulting circuit is ___________._% |
| A. | OR gate |
| B. | AND gate |
| C. | NOT gate |
| D. | None of the above |
| Answer» D. None of the above | |
| 23. |
__An OR gate has 6 inputs. The number of input words in its truth table are__ |
| A. | 6 |
| B. | 32 |
| C. | 64 |
| D. | 128 |
| Answer» D. 128 | |
| 24. |
_The inverter is ___________$? |
| A. | NOT gate |
| B. | OR gate |
| C. | AND gate |
| D. | None of the above |
| Answer» B. OR gate | |
| 25. |
_An AND gate will function as OR if$? |
| A. | All the inputs to the gates are “1” |
| B. | All the inputs are ‘0’ |
| C. | Either of the inputs is “1” |
| D. | All the inputs and outputs are complemente' |
| Answer» E. | |
| 26. |
_Positive logic in a logic circuit is one in which$? |
| A. | logic 0 and 1 are represented by 0 and positive voltage respectively |
| B. | logic 0 and, -1 are represented by negative and positive voltages respectively |
| C. | logic 0 voltage level is higher than logic 1 voltage level |
| D. | logic 0 voltage level is lower than logic 1 voltage level. |
| Answer» E. | |
| 27. |
_The number 10000 would appear just immediately after$? |
| A. | FFFF (hex) |
| B. | 1111 (binary) |
| C. | 7777 (octal) |
| D. | All of the above |
| Answer» E. | |
| 28. |
_In Boolean algebra, the bar sign (-) indicates ___________.$? |
| A. | OR operation |
| B. | AND operation |
| C. | NOT operation |
| D. | None of the above |
| Answer» D. None of the above | |
| 29. |
_Which is the correct order of sequence for representing the input values in K-map?$? |
| A. | (00, 01, 10, 11) |
| B. | (00, 10, 01, 11) |
| C. | (00, 01, 11, 10) |
| D. | (00, 10, 11, 01) |
| Answer» B. (00, 10, 01, 11) | |
| 30. |
The universal gate is ___________$? |
| A. | NAND gate |
| B. | OR gate |
| C. | AND gate |
| D. | None of the above |
| Answer» B. OR gate | |
| 31. |
Excess-3 code is known as$? |
| A. | Weighted code |
| B. | Cyclic redundancy code |
| C. | Self-complementing code |
| D. | Algebraic code |
| Answer» D. Algebraic code | |
| 32. |
NAND. gates are preferred over others because these$? |
| A. | have lower fabrication area |
| B. | can be used to make any gate |
| C. | consume least electronic power |
| D. | provide maximum density in a chip. |
| Answer» C. consume least electronic power | |
| 33. |
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.$? |
| A. | 10 CPS |
| B. | 120 CPS |
| C. | 12 CPS |
| D. | None of the above |
| Answer» D. None of the above | |
| 34. |
Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is$? |
| A. | TTLAS |
| B. | CMOS |
| C. | ECL |
| D. | TTLLS |
| Answer» D. TTLLS | |
| 35. |
A debouncing circuit is$? |
| A. | An astable MV |
| B. | A bistable MV |
| C. | A latch |
| D. | A monostable MV |
| Answer» D. A monostable MV | |
| 36. |
Which mechanism allocates the binary value to the states in order to reduce the cost of the combinational circuits?$? |
| A. | State Reduction |
| B. | State Minimization |
| C. | State Assignment |
| D. | State Evaluation |
| Answer» D. State Evaluation | |
| 37. |
A debouncing circuit is? |
| A. | An astable MV |
| B. | A bistable MV |
| C. | A latch |
| D. | A monostable MV |
| Answer» D. A monostable MV | |
| 38. |
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.? |
| A. | 10 CPS |
| B. | 120 CPS |
| C. | 12 CPS |
| D. | None of the above |
| Answer» D. None of the above | |
| 39. |
Which mechanism allocates the binary value to the states in order to reduce the cost of the combinational circuits?? |
| A. | State Reduction |
| B. | State Minimization |
| C. | State Assignment |
| D. | State Evaluation |
| Answer» D. State Evaluation | |
| 40. |
Excess-3 code is known as? |
| A. | Weighted code |
| B. | Cyclic redundancy code |
| C. | Self-complementing code |
| D. | Algebraic code |
| Answer» D. Algebraic code | |
| 41. |
Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is? |
| A. | TTLAS |
| B. | CMOS |
| C. | ECL |
| D. | TTLLS |
| Answer» D. TTLLS | |
| 42. |
NAND. gates are preferred over others because these? |
| A. | have lower fabrication area |
| B. | can be used to make any gate |
| C. | consume least electronic power |
| D. | provide maximum density in a chip. |
| Answer» C. consume least electronic power | |
| 43. |
The fan put of a 7400 NAND gate is |
| A. | 2TTL |
| B. | 5TTL |
| C. | 8TTL |
| D. | 10TTL |
| Answer» E. | |
| 44. |
"What would happen, if smaller logic modules are utilized for performing logical functions associated with FPGA?A. Propagation delay will increaseB. FPGA area will increaseC. Wastage of logic modules will not be preventedD. Number of interconnected paths in device will decrease" |
| A. | A & B |
| B. | C & D |
| C. | A & D |
| D. | B & C |
| Answer» B. C & D | |
| 45. |
The binary number 10101 is equivalent to decimal number ___________. |
| A. | 19 |
| B. | 12 |
| C. | 27 |
| D. | 21 |
| Answer» E. | |
| 46. |
The number of Boolean functions that can be generated by n variables is equal to |
| A. | 2n |
| B. | 22n |
| C. | 2n-1 |
| D. | 2n |
| Answer» C. 2n-1 | |
| 47. |
Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000?$ |
| A. | Two’s complement only |
| B. | Sign and magnitude and one’s complement only |
| C. | Two’s complement and one’s complement only |
| D. | All three representations |
| Answer» E. | |
| 48. |
The NAND gate is AND gate followed by ___________. |
| A. | NOT gate |
| B. | OR gate |
| C. | AND gate |
| D. | None of the above |
| Answer» B. OR gate | |
| 49. |
A NAND gate is called a universal logic element because |
| A. | It is used by everybody |
| B. | Any logic function can be realized by NAND gates alone |
| C. | All the minization techniques are applicable for optimum NAND gate realization |
| D. | Many digital computers use NAND gates. |
| Answer» C. All the minization techniques are applicable for optimum NAND gate realization | |