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MCQOPTIONS
This section includes 9294 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 701. |
- 56 is not a valid real constant in Fortran. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 702. |
For the infix expression (A/B) * (C * F + (A - D) * E) the corresponding Post fix notation is |
| A. | A / D * CF AD - F * + |
| B. | AB / CF * AD - E * + * |
| C. | AB / C * FAD - E * + * |
| D. | None of the above |
| Answer» C. AB / C * FAD - E * + * | |
| 703. |
If X = 2.5 and Y = 2.5, which of the following expressions would give the result as 5/7? |
| A. | X + 2.5 / Y + 3.0 |
| B. | (X + 2.5) / Y + 4.5 |
| C. | (X + 2.5) / (Y + 4.5) |
| D. | (X + 2.5) / Y + 3.5 |
| Answer» D. (X + 2.5) / Y + 3.5 | |
| 704. |
Which of the following is not a classification of programmed data transfer? |
| A. | Synchronous transfer |
| B. | Hand shaking |
| C. | Interrupt driver transfer |
| D. | Direct transfer |
| Answer» E. | |
| 705. |
As compared to operating current, the current drawn by a memory chip in stand by mode is |
| A. | about the same |
| B. | about one-eighth |
| C. | about 1 / 64 |
| D. | about 1 / 500 |
| Answer» C. about 1 / 64 | |
| 706. |
Which characteristic of a memory chip is called ac characteristics? |
| A. | Power consumption |
| B. | Bus loading |
| C. | Timing characteristic |
| D. | All of the above |
| Answer» D. All of the above | |
| 707. |
Which of the following alphanumeric characters is not allowed in Basic? |
| A. | capital letters A to Z |
| B. | lower case letters a to z |
| C. | digits 0 to 9 |
| D. | special characters +, -, *, / etc |
| Answer» E. | |
| 708. |
A machine cycle has one clock cycle. |
| A. | True |
| B. | False |
| Answer» C. | |
| 709. |
Which is not a valid dimension statement? |
| A. | DIMENSION KAT(10, 20) |
| B. | DIMENSION BAT (30, 20) |
| C. | DIMENSION KAT(K, 10) |
| D. | DIMENSION BAT (10, 5) |
| Answer» D. DIMENSION BAT (10, 5) | |
| 710. |
The language PL / I has |
| A. | one character set having 60 characters |
| B. | one character set having 48 characters |
| C. | one character set having 60 characters and another character set having 48 character |
| D. | none of the above |
| Answer» B. one character set having 48 characters | |
| 711. |
DOS has a command named ' DIRECTORY '. |
| A. | True |
| B. | False |
| Answer» C. | |
| 712. |
Assume that x = 7, the Java operation x = x - means that final value of x is |
| A. | 7 |
| B. | -1 |
| C. | 6 |
| D. | -6 |
| Answer» C. 6 | |
| 713. |
In 8085 the instruction MOV A, M is an example of |
| A. | Direct addressing |
| B. | Immediate addressing |
| C. | Register addressing |
| D. | Register indirect addressing |
| Answer» E. | |
| 714. |
For Disk partitioning th DOS command is |
| A. | F DISK |
| B. | H DISK |
| C. | A DISK |
| D. | D DISK |
| Answer» B. H DISK | |
| 715. |
Assertion (A): Magnetic tape can be accessed only sequentially.Reason (R): Magnetic tape consists of magnetised spots or tracks. |
| A. | Both A and R are correct and R is correct explanation of A |
| B. | Both A and R are correct but R is not correct explanation of A |
| C. | A is correct R is wrong |
| D. | A is wrong R is correct |
| Answer» C. A is correct R is wrong | |
| 716. |
Assertion (A): Most PCs use static RAM for main memory.Reason (R): Static RAM is faster than dynamic RAM. |
| A. | Both A and R are correct and R is correct explanation of A |
| B. | Both A and R are correct but R is not correct explanation of A |
| C. | A is correct R is wrong |
| D. | A is wrong R is correct |
| Answer» E. | |
| 717. |
Consider the following statements A 33 MHz 486 has higher MIPS than 33 MHz 386.A 33 MHz 486 has higher MFLOPS than 33 MHz 386 of these statements. |
| A. | Both are true |
| B. | Both are false |
| C. | 1 is true and 2 is false |
| D. | 1 is false and 2 is true |
| Answer» B. Both are false | |
| 718. |
Assertion (A): A two byte instruction of 8085 has an operation code in first byte and operand / address in the second byte.Reason (R): If an instruction is too long it is possible to reduce its length by a number of methods. |
| A. | Both A and R are correct and R is correct explanation of A |
| B. | Both A and R are correct but R is not correct explanation of A |
| C. | A is correct R is wrong |
| D. | A is wrong R is correct |
| Answer» C. A is correct R is wrong | |
| 719. |
In computers the size of secondary memory is usually much larger than that of primary memory. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 720. |
Some words like READ, WRITE, STOP etc. cannot be used as variable names in Fortran 77. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 721. |
Which of the following 8085 instructions do not effect CY flag? |
| A. | <code>SEE M</code> |
| B. | <code>SEE R</code> |
| C. | <code>DCRM</code> |
| D. | <code>ADC M</code> |
| Answer» D. <code>ADC M</code> | |
| 722. |
A compiler converts a high level computer program into machine language program. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 723. |
In 8085, the pairing of registers B, C, D, E, H, L is |
| A. | B - C, D - E, H - L |
| B. | B - D, C - E, H - L |
| C. | B - C, D - L, H - E |
| D. | B - H, D - E, C - L |
| Answer» B. B - D, C - E, H - L | |
| 724. |
Assertion (A): PC-XT is a personal computer.Reason (R): PC-XT uses a floppy drive and has a medium sized hard disc. |
| A. | Both A and R are correct and R is correct explanation of A |
| B. | Both A and R are correct but R is not correct explanation of A |
| C. | A is correct R is wrong |
| D. | A is wrong R is correct |
| Answer» B. Both A and R are correct but R is not correct explanation of A | |
| 725. |
In Intel 8085, the integer range per word length is |
| A. | -128 to 127 |
| B. | -127 and 128 |
| C. | -64 and 63 |
| D. | -63 and 64 |
| Answer» B. -127 and 128 | |
| 726. |
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is |
| A. | a larger floating point number |
| B. | a smaller floating point number |
| C. | either (a) or (b) depending on the actual number |
| D. | a negative floating point number |
| Answer» B. a smaller floating point number | |
| 727. |
Consider the statement 20 X = A + B/C + D * Y Which of the following formulae does the above statement represent? |
| A. | <img src="/_files/images/electronics-and-communication-engineering/microprocessors/35-405-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/microprocessors/35-405-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/microprocessors/35-405-3.png"> |
| D. | None of the above |
| Answer» C. <img src="/_files/images/electronics-and-communication-engineering/microprocessors/35-405-3.png"> | |
| 728. |
The number of categories in which registers are classified in P are |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 729. |
In the expression b = 2.1 / 1.2 * 3.1 + 3 / 7.1 * 6 which operation would have the first priority in C? |
| A. | 2.1 / 1.2 |
| B. | 1.2 * 3.1 |
| C. | 2.1 / 1.2 * 3.1 |
| D. | 3 / 7.1 |
| Answer» B. 1.2 * 3.1 | |
| 730. |
Consider the instructions MOV M, BOUT 4LDAX Which of the above require memory write cycle? |
| A. | 1, 2, 3 |
| B. | 1 and 2 only |
| C. | 1 and 3 only |
| D. | 2 and 3 only |
| Answer» D. 2 and 3 only | |
| 731. |
Read the following statements about address space in microprocessors An address space is a set of all possible addresses which can be generated by a microprocessor.Each address in the address space allows a designer to provide at least one memory or I/O location in the system.Two types of address spaces are memory and I/O address space.Some micro processors have only one type of address space. Which of the above are correct? |
| A. | All |
| B. | 1, 2, 3 only |
| C. | 1, 2, 4 only |
| D. | 1, 3, 4 only |
| Answer» B. 1, 2, 3 only | |
| 732. |
Which of the following is not a general purpose peripheral? |
| A. | I/O port |
| B. | Programmable interrupt controller |
| C. | Programmable CRT controller |
| D. | Programmable interval timer |
| Answer» D. Programmable interval timer | |
| 733. |
Each instruction in assembly language program has the following fields: Lable fieldMnemonic fieldOperand fieldComment field The correct sequence of these fields is? |
| A. | 1, 2, 3, 4 |
| B. | 1, 2, 4, 3 |
| C. | 2, 1, 3, 4 |
| D. | 2, 1, 4, 3 |
| Answer» B. 1, 2, 4, 3 | |
| 734. |
In one's complement 8 bit representation 11111111 represents |
| A. | +0 |
| B. | -0 |
| C. | +1 |
| D. | -1 |
| Answer» C. +1 | |
| 735. |
The operating modes of 8255 A are called |
| A. | mode 0 and mode 1 |
| B. | mode 0, mode 1 and mode 2 |
| C. | mode 0 and mode 2 |
| D. | mode 0, mode 2 and mode 3 |
| Answer» C. mode 0 and mode 2 | |
| 736. |
The timing difference between a slow memory and fast processor can be resolved if |
| A. | processor is capable of waiting |
| B. | external buffer is used |
| C. | either (a) or (b) |
| D. | neither (a) nor (b) |
| Answer» D. neither (a) nor (b) | |
| 737. |
In 8086 the number of bytes which can be addressed directly is about |
| A. | 1000 |
| B. | 10000 |
| C. | 100000 |
| D. | one million |
| Answer» E. | |
| 738. |
Consider the following statements about DRAM Page mode read operation is faster than RAS readRAS input remains active during column address strobeThe row and column addresses are strobed into the internal buffers using RAS and CAS inputs respectively Which of the above statements are correct? |
| A. | 1 and 3 only |
| B. | All |
| C. | 1 and 2 only |
| D. | 2 and 3 only |
| Answer» C. 1 and 2 only | |
| 739. |
Consider the following statements EEPROM has the problem of high write time.EEPROM has the problem of limited number of write cycles.Shadow RAM has the problem of high write time. Which of the above statements are correct? |
| A. | All |
| B. | 1 and 2 only |
| C. | 1 and 3 only |
| D. | 2 and 3 only |
| Answer» C. 1 and 3 only | |
| 740. |
In Fortran 77 a variable name can contain special characters. |
| A. | True |
| B. | False |
| Answer» C. | |
| 741. |
It is possible to copy a file in the same directory. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 742. |
Consider the series Which of the following is true for above series? |
| A. | <img src="/_files/images/electronics-and-communication-engineering/microprocessors/28-299-1.png"> |
| B. | <img src="/_files/images/electronics-and-communication-engineering/microprocessors/28-299-2.png"> |
| C. | <img src="/_files/images/electronics-and-communication-engineering/microprocessors/28-299-3.png"> |
| D. | None of these |
| Answer» B. <img src="/_files/images/electronics-and-communication-engineering/microprocessors/28-299-2.png"> | |
| 743. |
In Java which operator can be used even if there is a single operand |
| A. | + |
| B. | - |
| C. | * |
| D. | % |
| Answer» C. * | |
| 744. |
Read the following statements about 8085 RAL instruction rotates ACC contents left by 1 bitWhen RAL instruction is executed once the binary number gets doubledSTC means set CY to 1 Which of the above statements are correct? |
| A. | 1 and 2 only |
| B. | 1, 2 and 3 only |
| C. | 1, 2 and 4 only |
| D. | 1 and 4 only |
| Answer» C. 1, 2 and 4 only | |
| 745. |
Internet is a worldwide network of computers where most of the information is freely available. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 746. |
A 37 bit mantissa has an accuracy of |
| A. | 6 decimal places |
| B. | 8 decimal places |
| C. | 10 decimal places |
| D. | 11 decimal places |
| Answer» E. | |
| 747. |
In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is |
| A. | assignment, relational, arithmetic |
| B. | relational, assignment, arithmetic |
| C. | arithmetic, assignment, relational |
| D. | arithmetic, relational, assignment |
| Answer» E. | |
| 748. |
In 8085, the pins for SID and SOD are |
| A. | 4 and 5 respectively |
| B. | 5 and 4 respectively |
| C. | 3 and 4 respectively |
| D. | 4 and 3 respectively |
| Answer» C. 3 and 4 respectively | |
| 749. |
Assertion (A): Each memory chip has its own address latch.Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip. |
| A. | Both A and R are correct and R is correct explanation of A |
| B. | Both A and R are correct but R is not correct explanation of A |
| C. | A is correct R is wrong |
| D. | A is wrong R is correct |
| Answer» E. | |
| 750. |
The correct hierarchy of operations for the operators & &, = = , = , * is |
| A. | & & , = = , = , * |
| B. | * , = = , & & , = |
| C. | * , & & , = = , = |
| D. | = , & & , = = , * |
| Answer» C. * , & & , = = , = | |