WorksheetsDSD Quiz-1
Total questions: 25
Worksheet time: 13mins
Which of the following is an example of a digital Electronic?
Computers
Information appliances
Digital cameras
All of the mentioned
Which of the following digital logic circuits can be used to add more than 1 – bit simultaneously?
Full – adder
Ripple – carry adder
Half – adder
Serial adder
If a 3-input NOR gate has eight input possibilities, how many of those possibilities will result in a HIGH output?
1
2
3
4
When used with an IC, what does the term "QUAD" indicate?
2 circuits
4 circuits
6 circuits
8 circuits
The output of a NOR gate is HIGH if ________.
all inputs are HIGH
any input is HIGH
any input is LOW
all inputs are LOW
What are the pin numbers of the outputs of the gates in a 7432 IC?
3, 6, 10, and 13
1, 4, 10, and 13
3, 6, 8, and 11
1, 4, 8, and 11
How many entries would a truth table for a four-input NAND gate have?
2
8
16
32
How many 1-of-16 decoders are required for decoding a 7-bit binary number?
1
8
10
16
Convert the following decimal number to 8-bit binary.187
10111011
11011101
10111101
10111100
Convert the following binary number to decimal. 010112
35
11
12
10
What is the group of 1s in 4 cells of a K – map called?
Pair
Quad
Octet
Octave
The result “X + XY = X” follows which of these laws?
Consensus law
Distributive law
Duality law
Absorption law
The logical sum of two or more logical product terms is called __________
POS
SOP
A product term containing all K variables of the function in either complemented or uncomplemented form is called a __________
Minterm
Maxterm
Midterm
∑ term
A variable on its own or in its complemented form is known as a _______
Product Term
Literal
Sum Term
Word
A digital system consists of _____ types of circuits.
2
3
1
0
Procedure for the design of combinational circuits are:
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).
B, C, D, E, A
A, D, E, B, C
A, B, E, C, D
B, A, E, C, D
The number of full and half adders are required to add 16-bit number is __________
8 half adders, 8 full adders
1 half adders, 15 full adders
16 half adders, 0 full adders
4 half adders, 12 full adders
All the comparisons made by comparator is done using ____________
1 circuit
2 circuit
3 circuit
4 circuit
One that is not the outcome of magnitude comparator is ___________
a > b
a – b
a < b
a = b
The voltages in digital electronics are continuously variable.
True
False
Which is typically the longest: bit, byte, nibble, word?
bit
byte
nibble
word
With an OR gate, the output is HIGH only when both inputs are HIGH.
True
false
A logic circuit that can store one bit of information is a ________.
flip-flop
counter
gate
code converter
Look at this series: 12, 11, 13, 12, 14, 13, … What number should come next?
12
13
10
15
