Microprocessors And Microcontrollers MCQ Questions & Answers

Microprocessors And Microcontrollers MCQ Questions & Answers | ECE

Learn Microprocessors And Microcontrollers MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Microprocessors And Microcontrollers MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students.

In one’s complement 8 bit representation 11111111 represents

A) +0 B) -0 C) +1 D) -1

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Answer & Solution

Answer: Option B

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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]

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

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Answer & Solution

Answer: Option A

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

A) True B) False

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Answer & Solution

Answer: Option A

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

A) Less than B) Greater than C) The same as D) Cannot be determined

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Answer & Solution

Answer: Option C

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The five flags in 8085 are designated as

A) Z, CY, S, P and AC B) D, Z, S, P, AC C) Z, C, S, P, AC D) Z, CY, S, D, AC

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Answer & Solution

Answer: Option A

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A 37 bit mantissa has an accuracy of

A) 6 decimal places B) 8 decimal places C) 10 decimal places D) 11 decimal places

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Answer & Solution

Answer: Option D

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DS directive in 8085

A) Forces the assembler to reserve one byte of memory B) Forces the assembler to reserve a specified number of bytes in the memory C) Forces the assembler to reserve a specified number of consecutive bytes in the memory D) None of the above

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Answer & Solution

Answer: Option C

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Because we wish to allow each ASCII code to occupy one location in memory, most memories are __________ addressable.

A) BYTE B) NIBBLE C) WORD (16 bits) D) DOUBLEWORD (32 bits)

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Answer & Solution

Answer: Option A

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We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete

A) Set of {AND,OR} B) Set of {EXOR, NOT} C) Set of {AND,OR,NOT} D) None of the above

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Answer & Solution

Answer: Option C

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In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is

A) Assignment, relational, arithmetic B) Relational, assignment, arithmetic C) Arithmetic, assignment, relational D) Arithmetic, relational, assignment

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Answer & Solution

Answer: Option D

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