Logic Design Exam Paper
Logic Circuits
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This document provides a comprehensive study guide for the Final Exam in
Logic Design, which was held on 24/01/2016 at the Islamic University. The
exam was administered by Dr. Ali Khawaldeh and Dr. Qadri Hamarsheh, and
it covered various topics related to digital systems, binary number systems,
Boolean algebra, logic gates, Boolean expression simplification, Karnaugh
maps, and combinational and sequential circuits.
Multiple Choice
A digital system with 3 inputs and 2 outputs has the following
configuration: a) 2 inputs and 2 outputs b) 2 inputs and 3 outputs c) 3
inputs and 2 outputs d) 3 inputs and 3 outputs
The Boolean expression A+BC is equivalent to: a) (A'+B)(A'+C) b)
(A+B)(A+C) c) (A+B)(A'+C) d) (A+B)C
The following expression is in the product-of-sums form: a) (A + B)(C +
D) b) (AB)(CD) c) AB(CD) d) AB + CD
The output Y of the given circuit has the following status: a) LOW b)
HIGH c) Don't Care d) Cannot be determined
A circuit that converts n inputs to 2^n outputs is called a: a) Encoder b)
Decoder c) Comparator d) Multiplexer
The characteristic equation of a D flip-flop is: a) Q = 1 b) Q = 0 c) Q =
D' d) Q = D
A JK flip-flop can be implemented using a D flip-flop connected such
that: a) D = J'Q + KQ' b) D = J'Q' + KQ c) D = JQ' + K'Q d) D = J'Q +
KQ'
After shifting the register five times to the right with the serial input
being 10100101, the content of the register is: a) 1010 b) 1001 c) 0010
d) 0100
Familiar and Unfamiliar Problems Solving
Question 2
a) Draw a combinational logic circuit that implements the given Boolean
function. b) Draw a truth table for the given Boolean function. c) Write a
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