MCQOPTIONS
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MCQOPTIONS
This section includes 883 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics & Communication Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
In the words Kb or Mb used describing memory capacity, the letter b denotes |
| A. | bits |
| B. | bytes |
| C. | bits or bytes depending on type of memory |
| D. | bubbles |
| Answer» B. bytes | |
| 502. |
Consider the following statements about Infix and Post fix notations in Pascal In Infix notation operators appear between the operands on which they operate.In Post fix notation operators appear after the operand.The Infix expression A + B - C + D will appear as AB + C - D + in post fix notation. 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 | |
| 503. |
In the dimension statement DIMENSION A (50, 50), K (100, 100) the total number of locations reserved will be |
| A. | 2500 |
| B. | 100000 |
| C. | 125000 |
| D. | 250000 |
| Answer» D. 250000 | |
| 504. |
Which of the following READ statements is correct in FORTRAN 77? |
| A. | READ *, HONEY (I), I = 1, 5 |
| B. | READ *, (HONEY (I), I = 1, 5) |
| C. | READ * HONEY I, I = 1, 5 |
| D. | READ HONEY I, I = 1, 5 |
| Answer» C. READ * HONEY I, I = 1, 5 | |
| 505. |
In EPROM integrated dose is defined as |
| A. | UV light intensity x exposure time in seconds |
| B. | UV light intensity / exposure time in seconds |
| C. | exposure time in seconds / UV light intensity |
| D. | none of the above |
| Answer» B. UV light intensity / exposure time in seconds | |
| 506. |
The relational operators allowed in Pascal are |
| A. | =, >, <, > =, < = and < > |
| B. | =, >, < and < > |
| C. | =, >, <, > = and < = |
| D. | >, <, > = and < = |
| Answer» B. =, >, < and < > | |
| 507. |
Windows automatically starts CD player when one inserts audio CD in CD-ROM drive. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 508. |
Consider the following DO statement in FORTRAN 77 DO 25 J = 1, 7 The number of DO loop executions in the above statement is |
| A. | 7 |
| B. | 6 |
| C. | 1 |
| D. | 8 |
| Answer» B. 6 | |
| 509. |
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 | |
| 510. |
A compiler converts a high level computer program into machine language program. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 511. |
Fortran 77, C and Pascal are high level languages. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 512. |
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 | |
| 513. |
MS Access is a DBMS software. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 514. |
Which of the following instructions in 8085 does not belong to data transfer group? |
| A. | LDA addr |
| B. | STA addr |
| C. | XCHG |
| D. | SUB r |
| Answer» E. | |
| 515. |
Consider the following symbolsLetters A to Z and a to zDigits 0 to 9Logical operators and, or, notParenthesis ( ) Which of the above symbols are available in Pascal? |
| A. | 1 and 2 only |
| B. | 1, 2 and 3 only |
| C. | 1, 2 and 4 only |
| D. | All |
| Answer» E. | |
| 516. |
Consider the following tasks in a micro computer Receiving data and instructionPerforming arithmetic computationPerforming logical computationsStoring data and instructions Which of the above are performed by ALU? |
| A. | 2 only |
| B. | 2 and 3 only |
| C. | 1, 2 and 3 only |
| D. | All |
| Answer» C. 1, 2 and 3 only | |
| 517. |
A machine cycle has one clock cycle. |
| A. | 1 |
| B. | |
| Answer» C. | |
| 518. |
The storage capacity of DSDD disk and DSHD disk are |
| A. | 1.2 MB each |
| B. | 360 KB each |
| C. | 1.2 MB and 360 KB respectively |
| D. | 360 KB and 1.2 MB respectively |
| Answer» E. | |
| 519. |
RAM is a volatile memory device. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 520. |
The memory segment registers in 8086 are denoted by |
| A. | AS, BS, CS, DS |
| B. | BS, CS, SS, ES |
| C. | CS, DS, SS, ES |
| D. | DS, ES, FS, SS |
| Answer» D. DS, ES, FS, SS | |
| 521. |
The accumulator drives the ALU. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 522. |
The four types of integers in Java are called |
| A. | byte, short, int and long |
| B. | bit, byte, short and long |
| C. | nibble, byte, short and long |
| D. | nibble, byte, int and long |
| Answer» B. bit, byte, short and long | |
| 523. |
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 | |
| 524. |
The correct hierarchy of operations for the operators & &, = = , = , * is |
| A. | & & , = = , = , * |
| B. | * , = = , & & , = |
| C. | * , & & , = = , = |
| D. | = , & & , = = , * |
| Answer» C. * , & & , = = , = | |
| 525. |
Assertion (A): In C a variable name can have upto 8 characters and special symbols can also be part of variable name.Reason (R): In C a type declaration at the beginning of program indicates the type of variable name used in the program. |
| 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. | |
| 526. |
In Pascal the repeat and while loops will terminate |
| A. | only when the logical expression controlling the loop becomes true for both repeat and while loops |
| B. | only when the logical expression controlling the loop becomes false for both repeat and while loops |
| C. | only when the logical expression controlling the loop becomes true for repeat loop and false for while loop |
| D. | only when the logical expression controlling the loop becomes false for repeat loop and true for while loop |
| Answer» D. only when the logical expression controlling the loop becomes false for repeat loop and true for while loop | |
| 527. |
Which of the following statement number is not valid in Basic |
| A. | 12 |
| B. | 521 |
| C. | 662512 |
| D. | 99999 |
| Answer» D. 99999 | |
| 528. |
In a computer MPU is the centre of all operations and control. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 529. |
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 | |
| 530. |
Consider the following statements A total of about 1 million bytes can be directly accessed by 8086 microprocessor.The 8086 has thirteen 16 bit registers.The 8086 has eight flags.Compared to 8086, the 80286 provides a higher degree of memory protection. Of the above statements |
| A. | 1, 2, 3, 4 are correct |
| B. | 1, 3, 4 are correct |
| C. | 1, 2, 4 are correct |
| D. | 1, 2, 3 are correct |
| Answer» D. 1, 2, 3 are correct | |
| 531. |
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 | |
| 532. |
In Fortran 77 a variable name can contain special characters. |
| A. | 1 |
| B. | |
| Answer» C. | |
| 533. |
Consider the following program in C int k float b ; k = 3 b = 10.1 k = k / bThe final result would be k = |
| A. | 0.297 |
| B. | 0.2 |
| C. | 0 |
| D. | 3 |
| Answer» D. 3 | |
| 534. |
When two ALU 1C 74181 are cascaded |
| A. | the carry out of first stage is connected to carry in of second stage |
| B. | the carry in of first stage connected to carry in of second stage |
| C. | the carry in of first stage is connected to carry out of second stage |
| D. | the carry out of first stage is connected to carry out of second stage |
| Answer» B. the carry in of first stage connected to carry in of second stage | |
| 535. |
For 8 bit representation the minimum positive and minimum negative numbers are |
| A. | 2-128 each |
| B. | 2-28 and 2-127 |
| C. | 2-127 and 2-128 |
| D. | 2-127each |
| Answer» B. 2-28 and 2-127 | |
| 536. |
X COPY is an internal DOS command. |
| A. | 1 |
| B. | |
| Answer» C. | |
| 537. |
Let JCOKE = 3 and LPEPSI = 5. Consider the statement IF (3 * JCOKE. EQ. LPESPSI)JCOKE = JCOKE + 2 JCOKE = JCOKE + 5 What will be the final value of JCOKE after the above statement is executed? |
| A. | 8 |
| B. | 1 |
| C. | 15 |
| D. | 10 |
| Answer» B. 1 | |
| 538. |
In a display specified as 600 x 400 the number of pixels across the display screen is |
| A. | 600 |
| B. | 400 |
| C. | 240000 |
| D. | either (a) or (b) |
| Answer» B. 400 | |
| 539. |
Which of the following is not a keyword in C? |
| A. | int |
| B. | float |
| C. | return |
| D. | capital |
| Answer» E. | |
| 540. |
In 8085, which of the following is an 8 bit register? |
| A. | A |
| B. | SP |
| C. | PC |
| D. | both (a) and (b) |
| Answer» B. SP | |
| 541. |
Consider the following symbols for arithmetic operators for integers +divmod/ Which of the above are used in Pascal? |
| A. | 1, 2 and 4 only |
| B. | All |
| C. | 1, 2, 3 only |
| D. | 1 and 4 only |
| Answer» C. 1, 2, 3 only | |
| 542. |
In one's complement 8 bit representation 11111111 represents |
| A. | 0 |
| B. | 0 |
| C. | 1 |
| D. | -1 |
| Answer» C. 1 | |
| 543. |
In 8085 eight address and data buses are multiplexed. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 544. |
Pagemaker is an application software for DTP. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 545. |
The register set and instruction set of 8088 is similar to that of |
| A. | 8085 |
| B. | 8086 |
| C. | partly 8085 and partly 8086 |
| D. | none of the above |
| Answer» C. partly 8085 and partly 8086 | |
| 546. |
The symbol ! in Java means |
| A. | logical NOT |
| B. | logical OR |
| C. | AND |
| D. | logical XOR |
| Answer» B. logical OR | |
| 547. |
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) | |
| 548. |
The S (sign) flag is set when the contents of accumulator become negative during an operation. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 549. |
In the expression 3 * * 2 ** 4 ** 2 in FORTRAN 77 which exponentiation is performed first |
| A. | 4 * * 2 |
| B. | 2 * * 4 |
| C. | 3 * * 2 |
| D. | all exponentiation are performed together |
| Answer» B. 2 * * 4 | |
| 550. |
The number of pins in microprocessor 8086 is |
| A. | 30 |
| B. | 40 |
| C. | 50 |
| D. | 60 |
| Answer» C. 50 | |