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Worksheets

DE Flash Cards

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

I’m an Englishman born in India in 1806. I was instrumental in the advancement of mathematics.

a)

Augustus DeMorgan

b)

Isaac Newton

c)

Carl Friedrich Gauss

d)

Leonhard Euler

2.

This is a...

a)

NOR GATE AS AN AND GATE

b)

NOR GATE AS A NOT GATE

c)

NOR GATE AS AN OR GATE

d)

NOR GATE AS A BUFFER

3.

Example of an analog signal.

a)

Sound waves from a guitar

b)

Digital signals from a computer

c)

Radio waves from a satellite

d)

Light signals from a laser

4.

How many gates do you need to eliminate to get rid of double inversions?

a)

1 gate

b)

2 gates

c)

3 gates

d)

4 gates

5.

Cells that you circle on a K-Map must only be...

a)

Adjacent

b)

Diagonally Opposite

c)

Completely Separate

d)

Randomly Selected

6.

Binary equivalent of the decimal number 100.

a)

1100100

b)

1010100

c)

1110010

d)

1001100

7.

Binary equivalent of the decimal number 27.

a)

11010

b)

11011

c)

11100

d)

10111

8.

A breadboard allows for temporary testing of circuits before soldering to a PCB.

a)

True

b)

False

c)

Only for low voltage circuits

d)

Only for digital circuits

9.

Counters are one of the most common applications of flip-flops. What are they used for?

a)

Timers and frequency dividers.

b)

Data storage and retrieval.

c)

Signal amplification.

d)

Analog-to-digital conversion.

10.

This is a...

a)

NAND GATE AS AN INVERTER GATE

b)

AND GATE

c)

OR GATE

d)

XOR GATE

11.

Instantaneous voltage of a waveform is called...

a)

Amplitude

b)

Frequency

c)

Wavelength

d)

Phase

12.

The 555 Timer oscillator is favored for its _______ and __________

a)

low cost; ease of design.

b)

high efficiency; complex circuitry.

c)

expensive components; difficult design.

d)

limited applications; high power consumption.

13.

Steps to implement a NAND or an NOR logic design

a)

1 - Implement the design with AOI logic

b)

2 - Identify and replace every AND, OR, and INVERTER gate with its NAND or NOR equivalent

c)

3 - Identify and eliminate any back-to-back inverters

d)

4 - Use only AND gates to create the design

14.

Sequential logic depends on both current and past inputs.

a)

This is in contrast to combinational logic.

b)

It only depends on current inputs.

c)

It is a type of arithmetic logic.

d)

It is used in memory storage devices.

15.

Decimal equivalent of the binary number 11111.

a)

29

b)

30

c)

31

d)

32

16.

Two standard voltage levels for a digital signal.

a)

0V & 3V

b)

0V & 5V

c)

1V & 5V

d)

0V & 12V

17.

  1. A don’t care condition is marked by an ____ in a truth table.

a)

0

b)

1

c)

X

d)

-

18.

Difference between analog and digital signals.

a)

Analog signals are continuous, while digital signals are discrete.

b)

Analog signals are always stronger than digital signals.

c)

Digital signals can travel longer distances than analog signals.

d)

Analog signals are used in all modern technology.

19.

Components circled in blue are referred to as...

a)

D Flip-Flops

b)

T Flip-Flops

c)

JK Flip-Flops

d)

SR Flip-Flops

20.

Convert the decimal number 73 to binary.

a)

1001000

b)

1001001

c)

1101001

d)

1011001