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Home⇒ Engineering⇒
Microprocessors
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ IC 74181 has two select lines. FALSE [other wrong options] [Discuss in forum] TRUE |
Q2 ⇒ Z flag is reset if an ALU operation results in 0. FALSE [other wrong options] [Discuss in forum] TRUE |
Q3 ⇒ Assertion (A): In C arithmetic operations are pemiissible on ints, floats and chars. Reason (R): In C every arithmetic operator must be written explicitly. Both A and R are correct but R is not correct explanation of A [other wrong options] [Discuss in forum] Both A and R are correct and R is correct explanation of A A is correct R is wrong A is wrong R is correct |
Q4 ⇒ As compared to operating current, the current drawn by a memory chip in stand by mode is about one-eighth [other wrong options] [Discuss in forum] about the same about 1 / 64 about 1 / 500 |
Q5 ⇒ In which computer language is 'break' statement used C [other wrong options] [Discuss in forum] Fortran 77 Pascal none of the above |
Q6 ⇒ In a microprocessor one machine cycle consists of several clock cycles [other wrong options] [Discuss in forum] one machine cycle is equal to one clock cycle one clock cycle consists of several machine cycles one machine cycle is always less than one clock cycle |
Q7 ⇒ Consider the following statements
Both are true [other wrong options] [Discuss in forum] Both are false 1 is true and 2 is false 1 is false and 2 is true |
Q8 ⇒ A 256 x 4 EPROM has 8 address pins and 4 data pins [other wrong options] [Discuss in forum] 8 address pins and 8 data pins 4 address pins and 8 data pins 4 address pins and 4 data pins |
Q9 ⇒ The number of operator to accomplish basic arithmetic in Java is 5 [other wrong options] [Discuss in forum] 4 6 7 |
Q10 ⇒ In 8086 the flag which enables or disables external interrupts is IF [other wrong options] [Discuss in forum] DF TF CF |
Q11 ⇒ Which of the following DO statements is invalid in FORTRAN 77? none of the above [other wrong options] [Discuss in forum] DO 161 = 1, 15 DO 16 1 = 1, 10, 1 DO 16 I = - 5, 5, 2 |
Q12 ⇒ What does the instruction 'PCHL' in 8085 do?Load the program counter with contents of register pair H L [other wrong options] [Discuss in forum] Double the contents of register pair H L Shift the contents of register pair H L by one bit to the right Shift the contents of register pair H L by one bit to left |
Q13 ⇒ The number of pins in microprocessor 8086 is 40 [other wrong options] [Discuss in forum] 30 50 60 |
Q14 ⇒ The expression A2 + B2 - 3 AB when written is Pascal should be written asA * A + B * B - 3.0 * A * B [other wrong options] [Discuss in forum] A * A + B * B - 3 A * B A * A + B * B - 3.0 A * B A * A + B * A - 3 * A * B |
Q15 ⇒ In the expression 3 * * 2 ** 4 ** 2 in FORTRAN 77 which exponentiation is performed first 4 * * 2 [other wrong options] [Discuss in forum] 2 * * 4 3 * * 2 all exponentiation are performed together |
Q16 ⇒ 'WRITE' is a Word processor [other wrong options] [Discuss in forum] Line editor Text editor Column editor |
Q17 ⇒ In Java 31% gives an answer 4 [other wrong options] [Discuss in forum] 3 42798 42828 |
Q18 ⇒ Assertion (A): In 8085, P flag is for parity checking. Reason (R): If the result of ALU has even parity, P flag is set and if the result has odd parity, P flag is reset. Both A and R are correct and R is correct explanation of A [other wrong options] [Discuss in forum] Both A and R are correct but R is not correct explanation of A A is correct R is wrong A is wrong R is correct |
Q19 ⇒ The five flags in 8085 are designated as Z, CY, S, P and AC [other wrong options] [Discuss in forum] D, Z, S, P, AC Z, C, S, P, AC Z, CY, S, D, AC |
Q20 ⇒ Consider the following logical IF statement in FORTRAN 77 [other wrong options] [Discuss in forum] IF (SALT - PEPPER) 11, 11, 13 IF (SALT - PEPPER) 13, 11, 13 IF (SALT - PEPPER) 11, 13, 13 |
Or |