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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.
| 751. |
Which one of the following is valid integer variable in FORTRAN 77? |
| A. | <code>BRG</code> |
| B. | <code>IBRG</code> |
| C. | <code>VS</code> |
| D. | <code>PEC</code> |
| Answer» C. <code>VS</code> | |
| 752. |
In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU. |
| A. | True |
| B. | False |
| Answer» C. | |
| 753. |
The character set of Fortran 77 includes lower case alphabets a to z. |
| A. | True |
| B. | False |
| Answer» C. | |
| 754. |
The forms of IF statements in FORTRAN 77 are called |
| A. | logical IF and Block IF |
| B. | logical IF, block IF and arithmetic IF |
| C. | logic IF, block IF, arithmetic IF and negate IF |
| D. | logical IF and arithmetic IF |
| Answer» C. logic IF, block IF, arithmetic IF and negate IF | |
| 755. |
The command ^C in MS WORD |
| A. | copies the text in clip board |
| B. | copies the text in secondary storage device |
| C. | copies the text in file |
| D. | None of the above |
| Answer» B. copies the text in secondary storage device | |
| 756. |
An e-mail message can be sent to many recipients. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 757. |
In C the keywords are also called |
| A. | special words |
| B. | reserved words |
| C. | class words |
| D. | character words |
| Answer» C. class words | |
| 758. |
Which of the following directives in 8085 causes two bytes to be reserved in the memory? |
| A. | D S |
| B. | D B |
| C. | D W |
| D. | E Q U |
| Answer» D. E Q U | |
| 759. |
In 8086 the flag which enables or disables external interrupts is |
| A. | IF |
| B. | DF |
| C. | TF |
| D. | CF |
| Answer» B. DF | |
| 760. |
Consider the following statements about 8085 The instruction LDA uses direct addressing mode.The instruction MVI uses direct addressing mode.The instruction MVI uses immediate addressing mode.The instruction LDA uses immediate addressing mode. Which of the above are correct? |
| A. | 1 and 3 only |
| B. | 3 and 4 only |
| C. | 1 and 2 only |
| D. | 2 only |
| Answer» B. 3 and 4 only | |
| 761. |
Which of the following is not a valid logical expression in Pascal? |
| A. | A > = B |
| B. | A < = B |
| C. | A = < B |
| D. | A < > B |
| Answer» D. A < > B | |
| 762. |
An instruction using immediate addressing mode in 8085 is |
| A. | 2 bytes long |
| B. | 3 bytes long |
| C. | 2 or 3 bytes long |
| D. | 1 or 2 or 3 bytes long |
| Answer» E. | |
| 763. |
Consider the directive T : DS105. This directive |
| A. | directs the assembler to reserve a sequence of 105 bytes in the memory |
| B. | directs the assembler to reserve a sequence of 105 bits in the memory |
| C. | directs the assembler to reserve a sequence of consecutive 105 bytes in the memory |
| D. | directs the assembler to reserve a sequence of consecutive 105 bits in the memory |
| Answer» D. directs the assembler to reserve a sequence of consecutive 105 bits in the memory | |
| 764. |
Consider the instructions MOV M, BOUT 4LDA X Which of the above uses IO/W cycle? |
| A. | 1 only |
| B. | 1 and 2 only |
| C. | 2 only |
| D. | 3 only |
| Answer» D. 3 only | |
| 765. |
One can format a disc using window explorer. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 766. |
It is difficult to write a program in a machine language. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 767. |
A string variable in Basic is |
| A. | an alphabet followed by dollar sign |
| B. | a digit followed by dollar sign |
| C. | either (a) or (b) |
| D. | neither (a) nor (b) |
| Answer» B. a digit followed by dollar sign | |
| 768. |
DMA stands for |
| A. | Direct Memory Address |
| B. | Distributed Memory Address |
| C. | Direct Memory Accumulator |
| D. | Decimal Machine Address |
| Answer» B. Distributed Memory Address | |
| 769. |
RESET OUT signal when high indicates that |
| A. | program counter etc. are being set |
| B. | program counter etc. are being reset |
| C. | either (a) or (b) |
| D. | none of the above |
| Answer» C. either (a) or (b) | |
| 770. |
Which of the following identifiers is valid in Pascal? |
| A. | <code>THETA</code> |
| B. | <code>NUM </code> |
| C. | <code>1 ST</code> |
| D. | <code>$ BETA</code> |
| Answer» B. <code>NUM </code> | |
| 771. |
In 8086 |
| A. | the registers SI and DI are used for string operation |
| B. | the registers CS and DS are used for string operation |
| C. | the registers SS and ES are used for string operation |
| D. | the registers SI and SP are used for string operation |
| Answer» B. the registers CS and DS are used for string operation | |
| 772. |
In which of the following logical group instructions of 8085 do the contents of accumulator remain unchanged? |
| A. | <code>ORA <i>r</i></code> |
| B. | <code>ORA M</code> |
| C. | <code>ORI data</code> |
| D. | <code>CMP <i>r</i></code> |
| Answer» E. | |
| 773. |
If quadratic equation x2 - 1000x + 25 = 0 is solved using floating point arithmetic with 4 digit mantissa, the roots are |
| A. | .1000 E 4 and .1000 E 4 respectively |
| B. | .0000 E 4 and .0000 E 4 respectively |
| C. | .1000 E 4 and .0000 E 4 respectively |
| D. | None of the above |
| Answer» D. None of the above | |
| 774. |
In which of the following 8085 instructions is the 8 bit number in accumulator adjusted to form two four bit BCD numbers |
| A. | <code>DAD <i>rp</i></code> |
| B. | <code>DAA</code> |
| C. | <code>DCX <i>rp</i></code> |
| D. | <code>ADC M</code> |
| Answer» B. <code>DAA</code> | |
| 775. |
In 8085 the address space size is |
| A. | 64 kbits |
| B. | 64 k bytes |
| C. | 32 kbits |
| D. | 16 k bytes |
| Answer» C. 32 kbits | |
| 776. |
In 8085 the instruction MOV A, B is an example of |
| A. | Direct addressing |
| B. | Immediate addressing |
| C. | Register addressing |
| D. | Register indirect addressing |
| Answer» D. Register indirect addressing | |
| 777. |
Pagemaker is an application software for DTP. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 778. |
Assertion (A): Logical group of instructions contains instructions for logic operations.Reason (R): Data transfer group instruction is basically a copying instruction. |
| 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 | |
| 779. |
In 8085 which addressing mode is also called inherent addressing? |
| A. | Direct |
| B. | Register |
| C. | Implicit |
| D. | Immediate |
| Answer» D. Immediate | |
| 780. |
Consider the following statements for 8085 The most significant 8 bits of address are transmitted on the 8 lines on which data is transmitted.Eight pins are dedicated to transmit the most significant 8 bits of memory address.The least significant 8 bits of address are transmitted on the lines on which data is transmitted.The data and leass significant 8 bits are transmitted at different points in time.Which of the above statements are correct? |
| A. | all |
| B. | 1, 2 and 3 only |
| C. | 2, 3 and 4 only |
| D. | 1, 3 and 4 only |
| Answer» D. 1, 3 and 4 only | |
| 781. |
It is desired to evaluate the expression F = B cos Y + C cos2 Y + A cos3 Y The Pascal equivalent to ensure minimum computer time should be written as |
| A. | <code>F = B * COS (Y) + C * SQR (COS (Y) + A * COS (Y) * COS (Y) * COS (Y)</code> |
| B. | <code>F = B * COS (Y) + C * SQR [COS (Y)] + A * COS (Y) * SQR [COS (Y)]</code> |
| C. | <code>F = B * COS (Y) + C * COS(Y) * COS (Y) + A * COS (Y) * COS (Y) * COS (Y)</code> |
| D. | <code> X = COS(Y)<br>Z = SQR (X)<br>F = B * X + C * Z + A * X * Z</code> |
| Answer» E. | |
| 782. |
Assertion (A): Microprocessor 8085 has 16 address bus lines and 8 data bus lines.Reason (R): Address bus in 8085 is unidirectional. |
| 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 | |
| 783. |
If the absolute value of a number is less than decimal 1, the sign of exponent in floating point representation is |
| A. | zero |
| B. | negative |
| C. | zero or negative |
| D. | positive |
| Answer» D. positive | |
| 784. |
IC 74181 has two select lines. |
| A. | True |
| B. | False |
| Answer» C. | |
| 785. |
Plug and play is a hardware specification. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 786. |
Which of the following is not a library string function in C? |
| A. | strlen |
| B. | strcpy |
| C. | strdup |
| D. | strbig |
| Answer» E. | |
| 787. |
For a 16 bit computer the range of integer constants in C is |
| A. | -32768 to + 32767 |
| B. | -32767 to + 32768 |
| C. | -65536 to + 65535 |
| D. | -65535 to + 65536 |
| Answer» B. -32767 to + 32768 | |
| 788. |
In which group of 8085 instructions condition flags are not affected? |
| A. | Data transfer group |
| B. | Arithmetic group |
| C. | Logical group |
| D. | Both (a) and (c) |
| Answer» B. Arithmetic group | |
| 789. |
In 8085, the instruction CMA is an example of |
| A. | Implict addressing |
| B. | Direct addressing |
| C. | Register addressing |
| D. | Immediate addressing |
| Answer» B. Direct addressing | |
| 790. |
Assertion (A): Static RAMS are used where speed of operation is of primary concern.Reason (R): Dynamic RAM has lower cost per bit than static 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» C. A is correct R is wrong | |
| 791. |
The proper exponential form of - 0.0032 in FORTRAN 77 is |
| A. | -3.2 E - 3 |
| B. | -0.0032 |
| C. | -0.00032 EI |
| D. | -0.032 E - 1 |
| Answer» B. -0.0032 | |
| 792. |
An advantage of memory interlacing is that |
| A. | a larger memory is obtained |
| B. | effective speed of memory is increased |
| C. | cost of memory is reduced |
| D. | a non-volatile memory is obtained |
| Answer» C. cost of memory is reduced | |
| 793. |
Which of the following integer expressions is correct in Pascal? |
| A. | <code>- A + B + M </code> |
| B. | <code> A div B * mod C </code> |
| C. | <code>A - 4.0</code> |
| D. | <code>A / B + D</code> |
| Answer» B. <code> A div B * mod C </code> | |
| 794. |
The number of operator to accomplish basic arithmetic in Java is |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 7 |
| Answer» C. 6 | |
| 795. |
Programs like compilers, assemblers etc. are stored in a mircocomputer in |
| A. | registers |
| B. | cache memory |
| C. | primary memory |
| D. | mass storage |
| Answer» B. cache memory | |
| 796. |
When performing numerical calculations in floating point arithmetic Error may occur due to finite representation of numbers.Error may occur due to rounding.Error may occur due to finite representation of inherently infinite process. Which of the above are correct? |
| A. | All |
| B. | 1 and 2 only |
| C. | 1 and 3 only |
| D. | 2 and 3 only |
| Answer» B. 1 and 2 only | |
| 797. |
The number of registers and flags in 8086 are |
| A. | 13 and 5 respectively |
| B. | 9 and 5 respectively |
| C. | 13 and 9 respectively |
| D. | 9 and 9 respectively |
| Answer» D. 9 and 9 respectively | |
| 798. |
One T state is precisely equal to one clock period. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 799. |
Assertion (A): A good algorithm should be fast, require minimal computer memory and time.Reason (R): Many times an algorithm is prepared in the form of a flow chart. |
| 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 | |
| 800. |
Consider the following rules in Fortran A signed or unsigned real variable name or a real constant is a real expression.Two real expressions connected by an arithmetic operator is a real expression.A real variable or constant exponential by an integer constant or integer variable is not valid Which of the above 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 | |