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Test: Arithmetic Logic Units - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test GATE Electrical Engineering (EE) 2024 Mock Test Series - Test: Arithmetic Logic Units

Test: Arithmetic Logic Units for Electrical Engineering (EE) 2024 is part of GATE Electrical Engineering (EE) 2024 Mock Test Series preparation. The Test: Arithmetic Logic Units questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Arithmetic Logic Units MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Arithmetic Logic Units below.
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Test: Arithmetic Logic Units - Question 1

The basic building blocks of the arithmetic unit in digital computers are __________

Detailed Solution for Test: Arithmetic Logic Units - Question 1

The basic building blocks of the arithmetic unit in digital computers are adders. Since a parallel adder is constructed with a number of full-adder circuits connected in cascade. By controlling the data inputs to the parallel adder, it is possible to obtain different types of arithmetic operations.

Test: Arithmetic Logic Units - Question 2

n a combinational circuit, the output at any time depends only on the _______ at that time.

Detailed Solution for Test: Arithmetic Logic Units - Question 2

In a combinational circuit, the output at any time depends only on the input values at that time and not on past or intermediate values.

Test: Arithmetic Logic Units - Question 3

Procedure for the design of combinational circuits are:

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A. From the word description of the problem, identify the inputs and outputs and draw a block diagram.
B. Draw the truth table such that it completely describes the operation of the circuit for different 
combinations of inputs.
C. Simplify the switching expression(s) for the output(s).
D. Implement the simplified expression using logic gates.
E. Write down the switching expression(s) for the output(s).

Detailed Solution for Test: Arithmetic Logic Units - Question 3

Combinational circuits are the ones which do not depend on previous inputs and depends only on the present values. The given arrangement A, B, E, C, D is the right sequence for the designing of the combinational circuits.

Test: Arithmetic Logic Units - Question 4

The design of an ALU is based on __________

Detailed Solution for Test: Arithmetic Logic Units - Question 4

The design of an ALU is based on combinational logic. Because the unit has a regular pattern, it can be broken into identical stages connected in cascade through carries.

Test: Arithmetic Logic Units - Question 5

If the two numbers include a sign bit in the highest order position, the bit conditions of interest are the sign of the result, a zero indication and __________

Detailed Solution for Test: Arithmetic Logic Units - Question 5

If the two numbers include a sign bit in the highest order position, the bit conditions of interest are the sign of the result, a zero indication and an overflow condition.

Test: Arithmetic Logic Units - Question 6

The flag bits in an ALU is defined as ___________

Detailed Solution for Test: Arithmetic Logic Units - Question 6

In an ALU, status bit conditions are sometimes called condition code bits or flag bits. It is so called because they tend to represent the status of the respect flags after any operation.

Test: Arithmetic Logic Units - Question 7

 If the two numbers are unsigned, the bit conditions of interest are the ______ carry and a possible _____ result.

Detailed Solution for Test: Arithmetic Logic Units - Question 7

If the two numbers are unsigned, the bit conditions of interest are the output carry and a possible zero result.

Test: Arithmetic Logic Units - Question 8

All logic operations can be obtained by means of __________

Detailed Solution for Test: Arithmetic Logic Units - Question 8

Since the logic gates NOR and NAND are known as universal logic gates, therefore it can be used to design all the three basic gates AND, OR and NOT. Thus, it means that any operations can be obtained by implementation of these gates.

Test: Arithmetic Logic Units - Question 9

In a sequential circuit, the output at any time depends only on the input values at that time.

Detailed Solution for Test: Arithmetic Logic Units - Question 9

In a sequential circuit, the output at any time depends on the present input values as well as past output values. It also depends on clock pulses depending on whether it’s synchronous or asynchronous sequential circuits.

Test: Arithmetic Logic Units - Question 10

 A digital system consists of _____ types of circuits.

Detailed Solution for Test: Arithmetic Logic Units - Question 10

A digital system consists of two types of circuits and these are a combinational and sequential logic circuit. Combinational circuits are the ones which do not depend on previous inputs while Sequential circuits depend on past inputs.

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