Microprocessors(Electrical Engineering ) Questions and answers for exam Preparation

Question 1. In one’s complement 8 bit representation 11111111 represents

+0
-0
+1
-1

Explanation:-

Answer: Option B. -> -0

Question 2. Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier.[Hint: Construct the truth table for the adder and the multiplier]

Circuit A has more gates than circuit B
Circuit B has more gates than circuit A
Circuit A has the same number of gates as circuit B
None of the above

Explanation:-

Answer: Option A. -> Circuit A has more gates than circuit B

Question 3. An e-mail message can be sent to many recipients.

True
False

Explanation:-

Answer: Option A. -> True

Question 4. For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].

Less than
Greater than
The same as
Cannot be determined

Explanation:-

Answer: Option C. -> The same as

Question 5. The five flags in 8085 are designated as

Z, CY, S, P and AC
D, Z, S, P, AC
Z, C, S, P, AC
Z, CY, S, D, AC

Explanation:-

Answer: Option A. -> Z, CY, S, P and AC

Question 6. MS Access is a DBMS software.

True
False

Explanation:-

Answer: Option A. -> True

Question 7. Which of the following is not a general purpose peripheral?

Input/Output port
Programmable interrupt controller
Programmable CRT controller
Programmable interval timer

Explanation:-

Answer: Option C. -> Programmable CRT controller

Question 8. It is possible to copy a file in the same directory.

True
False

Explanation:-

Answer: Option A. -> True

Question 9. In Fortran 77 a variable name can contain special characters.

True
False

Explanation:-

Answer: Option B. -> False

Question 10. A real number consists of

Integer part
Integer part and fraction part
Integer part, fraction part along with positive or negative sign
None of the above

Explanation:-

Answer: Option C. -> Integer part, fraction part along with positive or negative sign