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MCQOPTIONS
This section includes 2291 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
The 2's complement of 11100111 is ________. |
| A. | 11100110 |
| B. | 00011001 |
| C. | 00011000 |
| D. | 00011010 |
| Answer» C. 00011000 | |
| 602. |
Convert the following decimal number to BCD.469 |
| A. | 100101101000 |
| B. | 010001101001 |
| C. | 100001101001 |
| D. | 100101100100 |
| Answer» C. 100001101001 | |
| 603. |
Convert the following decimal number to BCD.127 |
| A. | 011100100001 |
| B. | 111010001 |
| C. | 001010111 |
| D. | 000100100111 |
| Answer» E. | |
| 604. |
The decimal number for octal 748 is ________. |
| A. | 74 |
| B. | 60 |
| C. | 22 |
| D. | 62 |
| Answer» C. 22 | |
| 605. |
The sum of 11101 + 10111 equals ________. |
| A. | 110011 |
| B. | 100001 |
| C. | 110100 |
| D. | 100100 |
| Answer» D. 100100 | |
| 606. |
Convert the following binary number to decimal. 100110102 |
| A. | 154 |
| B. | 155 |
| C. | 153 |
| D. | 157 |
| Answer» B. 155 | |
| 607. |
The decimal number 188 is equal to the binary number ________. |
| A. | 10111100 |
| B. | 0111000 |
| C. | 1100011 |
| D. | 1111000 |
| Answer» B. 0111000 | |
| 608. |
Convert decimal 64 to binary. |
| A. | 01010010 |
| B. | 01000000 |
| C. | 00110110 |
| D. | 01001000 |
| Answer» C. 00110110 | |
| 609. |
Convert the following octal number to decimal. 178 |
| A. | 51 |
| B. | 82 |
| C. | 57 |
| D. | 15 |
| Answer» E. | |
| 610. |
How many binary digits are required to count to 10010? |
| A. | 7 |
| B. | 2 |
| C. | 3 |
| D. | 100 |
| Answer» B. 2 | |
| 611. |
The BCD number for decimal 347 is ________. |
| A. | 1100 1011 1000 |
| B. | 0011 0100 0111 |
| C. | 0011 0100 0001 |
| D. | 1100 1011 0110 |
| Answer» C. 0011 0100 0001 | |
| 612. |
One hex digit is sometimes referred to as a(n): |
| A. | byte |
| B. | nibble |
| C. | grouping |
| D. | instruction |
| Answer» C. grouping | |
| 613. |
Which of the following is the most widely used alphanumeric code for computer input and output? |
| A. | Gray |
| B. | ASCII |
| C. | Parity |
| D. | EBCDIC |
| Answer» C. Parity | |
| 614. |
An informational signal that makes use of binary digits is considered to be: |
| A. | solid state |
| B. | digital |
| C. | analog |
| D. | non-oscillating |
| Answer» C. analog | |
| 615. |
The 1's complement of 10011101 is ________. |
| A. | 01100010 |
| B. | 10011110 |
| C. | 01100001 |
| D. | 01100011 |
| Answer» B. 10011110 | |
| 616. |
Convert 45710 to hexadecimal. |
| A. | 711 |
| B. | 2C7 |
| C. | 811 |
| D. | 1C9 |
| Answer» E. | |
| 617. |
Convert the decimal number 151.75 to binary. |
| A. | 10000111.11 |
| B. | 11010011.01 |
| C. | 00111100.00 |
| D. | 10010111.11 |
| Answer» E. | |
| 618. |
Convert the binary number 1100 to Gray code. |
| A. | 0011 |
| B. | 1010 |
| C. | 1100 |
| D. | 1001 |
| Answer» C. 1100 | |
| 619. |
Which of the following is an invalid BCD code? |
| A. | 0011 |
| B. | 1101 |
| C. | 0101 |
| D. | 1001 |
| Answer» C. 0101 | |
| 620. |
What decimal number does 25 represent? |
| A. | 10 |
| B. | 31 |
| C. | 25 |
| D. | 32 |
| Answer» E. | |
| 621. |
Determine the decimal equivalent of the signed binary number 11110100 in 1's complement. |
| A. | 116 |
| B. | 12 |
| C. | 11 |
| D. | 128 |
| Answer» D. 128 | |
| 622. |
What is the difference between binary coding and binary-coded decimal? |
| A. | BCD is pure binary. |
| B. | Binary coding has a decimal format. |
| C. | BCD has no decimal format. |
| D. | Binary coding is pure binary. |
| Answer» E. | |
| 623. |
A decimal 11 in BCD is ________. |
| A. | 00001011 |
| B. | 00001100 |
| C. | 00010001 |
| D. | 00010010 |
| Answer» D. 00010010 | |
| 624. |
The difference of 111 001 equals ________. |
| A. | 100 |
| B. | 111 |
| C. | 001 |
| D. | 110 |
| Answer» E. | |
| 625. |
Convert 11001010001101012 to hexadecimal. |
| A. | 121035 |
| B. | CA35 |
| C. | 53AC1 |
| D. | 530121 |
| Answer» C. 53AC1 | |
| 626. |
The sum of the two BCD numbers, 0011 + 0011, is ________. |
| A. | 0110 |
| B. | 0111 |
| C. | 0011 |
| D. | 1100 |
| Answer» B. 0111 | |
| 627. |
Convert binary 01001110 to decimal. |
| A. | 4E |
| B. | 78 |
| C. | 76 |
| D. | 116 |
| Answer» C. 76 | |
| 628. |
Which is not a word size? |
| A. | 64 |
| B. | 28 |
| C. | 16 |
| D. | 8 |
| Answer» C. 16 | |
| 629. |
The octal numbering system: |
| A. | simplifies tasks |
| B. | groups binary numbers in groups of 4 |
| C. | saves time |
| D. | simplifies tasks and saves time |
| Answer» E. | |
| 630. |
The binary number 1110 is equal to the decimal number ________. |
| A. | 3 |
| B. | 1 |
| C. | 7 |
| D. | 14 |
| Answer» E. | |
| 631. |
How many bits are in an ASCII character? |
| A. | 16 |
| B. | 8 |
| C. | 7 |
| D. | 4 |
| Answer» D. 4 | |
| 632. |
A binary number's value changes most drastically when the ________ is changed. |
| A. | MSB |
| B. | frequency |
| C. | LSB |
| D. | duty cycle |
| Answer» B. frequency | |
| 633. |
Convert decimal 213 to binary. |
| A. | 11001101 |
| B. | 11010101 |
| C. | 01111001 |
| D. | 11100011 |
| Answer» C. 01111001 | |
| 634. |
Which is typically the longest: bit, byte, nibble, word? |
| A. | Bit |
| B. | Byte |
| C. | Nibble |
| D. | Word |
| Answer» E. | |
| 635. |
The binary number for octal 458 is ________. |
| A. | 100010 |
| B. | 100101 |
| C. | 110101 |
| D. | 100100 |
| Answer» C. 110101 | |
| 636. |
Convert 59.7210 to BCD. |
| A. | 111011 |
| B. | 01011001.01110010 |
| C. | 1110.11 |
| D. | 0101100101110010 |
| Answer» C. 1110.11 | |
| 637. |
Convert 8B3F16 to binary. |
| A. | 35647 |
| B. | 011010 |
| C. | 1011001111100011 |
| D. | 1000101100111111 |
| Answer» E. | |
| 638. |
Assign the proper odd parity bit to the code 111001. |
| A. | 1111011 |
| B. | 1111001 |
| C. | 0111111 |
| D. | 0011111 |
| Answer» C. 0111111 | |
| 639. |
When using even parity, where is the parity bit placed? |
| A. | Before the MSB |
| B. | After the LSB |
| C. | In the parity word |
| D. | After the odd parity bit |
| Answer» B. After the LSB | |
| 640. |
Convert the following octal number to decimal. 358 |
| A. | 71 |
| B. | 17 |
| C. | 92 |
| D. | 29 |
| Answer» E. | |
| 641. |
An analog signal has a range from 0 V to 5 V. What is the total number of analog possibilities within this range? |
| A. | 5 |
| B. | 50 |
| C. | 250 |
| D. | infinite |
| Answer» E. | |
| 642. |
Digital electronics is based on the ________ numbering system. |
| A. | decimal |
| B. | octal |
| C. | binary |
| D. | hexadecimal |
| Answer» D. hexadecimal | |
| 643. |
Hexadecimal letters A through F are used for decimal equivalent values from: |
| A. | 1 through 6 |
| B. | 9 through 14 |
| C. | 10 through 15 |
| D. | 11 through 17 |
| Answer» D. 11 through 17 | |
| 644. |
3 101 + 7 100 is equal to ________. |
| A. | 3.7 |
| B. | 37 |
| C. | 10 |
| D. | 370 |
| Answer» C. 10 | |
| 645. |
3428 is the decimal value for which of the following binary-coded decimal (BCD) groupings? |
| A. | 11010001001000 |
| B. | 11010000101000 |
| C. | 011010010000010 |
| D. | 110100001101010 |
| Answer» C. 011010010000010 | |
| 646. |
The binary-coded decimal (BCD) system can be used to represent each of the 10 decimal digits as a(n): |
| A. | 4-bit binary code |
| B. | 8-bit binary code |
| C. | 16-bit binary code |
| D. | ASCII code |
| Answer» B. 8-bit binary code | |
| 647. |
A TTL NAND gate with IIL(max) of 1.6 mA per input drives eight TTL inputs. How much current does the drive output sink? |
| A. | 12.8 mA |
| B. | 8 mA |
| C. | 1.6 mA |
| D. | 25.6 mA |
| Answer» B. 8 mA | |
| 648. |
The nominal value of the dc supply voltage for TTL and CMOS is ________. |
| A. | +3 V |
| B. | +5 V |
| C. | +9 V |
| D. | +12 V |
| Answer» C. +9 V | |
| 649. |
Which logic family combines the advantages of CMOS and TTL? |
| A. | BiCMOS |
| B. | TTL/CMOS |
| C. | ECL |
| D. | TTL/MOS |
| Answer» B. TTL/CMOS | |
| 650. |
Which of the following instructions will move the contents of register 3 to the accumulator? |
| A. | MOV 3R, A |
| B. | MOV R3, A |
| C. | MOV A, R3 |
| D. | MOV A, 3R |
| Answer» D. MOV A, 3R | |