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CIE-01 Final Exam


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1: The early ???? rubbed amber with fur to get feathers to stick to the amber by static electricity
Dutch
English
Greeks
French
2: The person who first wrote about the earth being a giant magnet was
Dutch
English
Greek
French
3: The first person to notice that placing a wire carrying an electrical current near a compass caused a deflection of the compass was
Danish
Italian
German
Russian
4: The first person to DEMONSTRATE an electric light bulb was
Edison
Swan
Marconi
Bell
5: The person who discovered X-rays was
Hertz
Tesla
Steinmetz
Roentgen
6: The first person to make a vacuum tube with gain was
Fleming
Edison
Tesla
DeForest
7: The first person to be granted a radio station license in the USA was
Marconi
Westinghouse
Sarnoff
Armstrong
8: The first electrical home appliance on the market was the
refrigerator
clothes washer
dish washer
vacuum cleaner
9: Widely accepted as being the first electronic computer, ENIAC was first intended to
aim guns
calculate payroll
keep census data
design a better computer
10: The person who conducted the experiments to first split the atom was
Einstein
Bardeen
Edison
Fermi
11: The person(s) given a Nobel prize for inventing the transistor was
Bardeen
Brattain
Shockley
All of the above
12: The integrated circuit was invented independently by
Noyce and Moore
Kilby and Noyce
Townes and Schawlow
Greatbach and Charback
13: The first microprocessor based computer was introduced by
Apple
Intel
IBM
Gates
14: Gallium arsenide diodes glow
green
blue
white
red
15: White LEDs are made using
gallium strontium arsenide
blue LEDs with phosphor
gallium aluminum silicate
filters on green LEDs
16: The most common material used to make semiconductors is
germanium
silicon
gallium arsenide
selenium
17: Small signal bipolar transistors will have a beta (current gain) somewhere around
1 to 10
10 to 30
50 to 300
500 to 1000
18: A FET is a
Functional Equivalent Transistor
Free Electron Transistor
Field Effect Transistor
Final Electronic Transformer
19: An amplifier can amplify
voltage
current
power
all of the above
20: In a cheap handheld AM/FM radio you will find about ???? transistors
1
10
100
1000
21: An oscillator
produces a signal with no external input signal
is a form of linear amplifier
can reproduce an input signal exactly
can be made from only resistors, capacitors, and inductors
22: The first transoceanic radio signal was sent from
Ireland to Massachusetts
France to Virginia
Italy to Brazil
England to Newfoundland
23: RF "radio" waves bounce off of these ionospheric layers
A, B, C, D
B, C, D1, D2
D, E, F1, F2
D, E, F, G
24: The "HF" radio band (as opposed to the LF, VHF, or UHF band) is from
3 to 30 MHz.
300 kHz to 3 MHz.
30 MHz. to 300 MHz.
the AM band to the FM band
25: The first transatlantic radio signal was sent
from Hertz to Edison
from Edison to Hertz
from Marconi to Fleming
from Fleming to Marconi
26: A linear amplifier
changes output level for any change of input level
has only two states -- high and low
always oscillates
needs no power supply
27: "Dead -bug" construction refers to
removing the moth wings from between the relay contacts before energizing the circuit
putting a dead cockroach or other small bug on pin 1 of the integrated circuit
mounting some components upside down on a scrap of pc board
making an electronic "bug zapper" from integrated circuits and piezoelectric barbecue lighters
28: The world's first integrated circuit
was an oscillator fabricated on silicon
was two transistors fabricated on germanium
was a digital gate fabricated on gallium arsenide
was an op-amp fabricated on silicon
29: A modern op-amp has a maximum possible (open-loop) gain of about
3,000
30,000
300,000
3,000,000
30: Op amps
are a very versatile "building block" useful in many applications
can be used to make linear amplifiers
can be connected as an oscillator
all of the above
31: Digital integrated circuits
have an infinite choice of output voltages
are generally made from germanium
use feedback to maintain their output levels
have two output states -- high and low
32: A "two Gig" hard drive can store ???? bytes of information
two thousand
two million
two billion
two trillion
33: The binary word 10010110 can be expressed as ???? in decimal
128
144
150
255
34: The ASCII code system for memory storage
has 255 keyboard and special characters in an 8 bit word
can provide up to a million different characters in a hexadecimal format
is used to store MIDI and WAV audio files
can be used to translate from the octal system to the decimal system
35: The logic family that provides the best combination of low power and low cost is
TTL
ECL
RTL
CMOS
36: An inverting digital buffer
gives a high output for a high input and a low output for a low input
gives a low output for a high input and a high output for a low input
Gives a high output only if both inputs are high
Gives a high output only if both inputs are low
37: A digital NAND gate output is
high if either or both inputs are low
low only if both inputs are high
high only if both inputs are high
low if either input is high
38: Digital gates
can have many inputs
can have many outputs
can only have two inputs
can only have two outputs
39: A form of mathematics used to analyze logic circuits is called
Newtonian algebra
Hertzian trigonometry
Edisonian analysis
Boolean algebra
40: Debugging a circuit took its name from a
moth
fly
mosquito
cockroach
41: The basic memory cell is a(n)
op-amp
oscillator
monostable multivibrator
flip-flop
42: In a D-type flip-flop, if the Q output is high the the /Q (Q-bar) output is normally
high
low
half the supply voltage
oscillating
43: If you connect the /Q output of a D-type flip-flop to the D input, the clock
will be deactivated
will rise to the supply voltage
will be divided by two in frequency at Q
will be divided by the R and the S values
44: By using an array of flip-flops and gates, a digital clock signal's frequency
can be connected to divide the frequency by any integer you choose
will be inhibited (disconnected) for certain values of the clock frequency
may be inverted to form a buffer
is normally used to drive an audio power amplifier into saturation
45: What is the minimum number of segments required on a single digit to make all the arabic numerals 0-9 and all the hexadecimal letters a-f
5
6
7
8
46: The universal timer "chip" is the
324
368
555
709
47: The "duty cycle" of a digital waveform is
generated by a special L-C oscillator
the ratio of high time to low time
how much current it can drive into a buffer
the ratio of clock signal to output signal
48: A "timer" integrated circuit is
all digital
all analog
half analog, half digital
is neither analog nor digital
49: A comparator circuit compares
two inputs and switches the output either high or low
two inputs and gives an output as the algebraic difference of the inputs
two inputs and gives an output as the algebraic sum of the inputs
two digital signals and gives an output whose duty cycle is a function of the inputs
50: The 555 integrated circuit timer "chip" replaces about ???? discrete components
20
40
60
80

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