Top 150+ Solved Microprocessors and Microcontrollers MCQ Questions Answer
Q. 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
Q. 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
Q. Which of the following is type declaration statement in C?
a. int bar
b. s = s + 1
c. king = horse + 1
d. prin = prin * prin
Q. Internet is a worldwide network of computers where most of the information is freely available.
a. True
b. False
c. none
d. none
Q. A 37 bit mantissa has an accuracy of
a. 6 decimal places
b. 8 decimal places
c. 10 decimal places
d. 11 decimal places
Q. In a C expression using assignment operators, relational operators and arithmetic operators, thehierarchy of operations (in the absence of parenthesis) is
a. assignment, relational, arithmetic
b. relational, assignment, arithmetic
c. arithmetic, assignment, relational
d. arithmetic, relational, assignment
Q. 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
Q. 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
Q. In C the keywords are also called
a. special words
b. reserved words
c. class words
d. character words
Q. The character set of Fortran 77 includes lower case alphabets a to z.
a. True
b. False
c. none
d. none
Q. Which memory has read operation, byte erase, byte write and chip erase?
a. RAM
b. UVEPROM
c. EEPROM
d. both (b) and (c)
Q. 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