Technician Licensing Class

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Technician Licensing Class
Picture This!
Page 141 to 150
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Amateur Radio Technician ClassElement 2 Course
Presentation

• ELEMENT 2 SUB-ELEMENTS (Groupings)
• About Ham Radio
• Call Signs
• Control
• Mind the Rules
• Tech Frequencies
• Your First Radio
• Going On The Air!
• Repeaters
• Emergency!
• Weak Signal Propagation

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Amateur Radio Technician ClassElement 2 Course
Presentation

• ELEMENT 2 SUB-ELEMENTS (Groupings)
• Talk to Outer Space!
• Your Computer Goes Ham Digital!
• Multi-Mode Radio Excitement
• Run Some Interference Protection
• Electrons Go With the Flow!
• Its the Law, per Mr. Ohm!
• Picture This!
• Antennas
• Feed Me with Some Good Coax!
• Safety First!

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Element 2 Technician Class Question Pool
Picture This!
Valid July 1, 2010 Through June 30, 2014
5
T6C01 What is the name for standardized
representations of components in an electrical
wiring diagram?

1. Electrical depictions
2. Grey sketch
3. Schematic symbols
4. Component callouts

6
T6C12 What do the symbols on an electrical
circuit schematic diagram represent?

1. Electrical components
2. Logic states
3. Digital codes
4. Traffic nodes

CAPACITOR
RESISTOR
TRANSISTOR
DIODE
LED
BATTERY
ANTENNA
7
T6C13 Which of the following is accurately
represented in electrical circuit schematic
diagrams?

1. Wire lengths
2. Physical appearance of components
3. The way components are interconnected
4. All of these choices

8
T6C10 What is component 3 in Figure T3?

1. Connector
2. Meter
3. Variable capacitor
4. Variable inductor

9
T6C11 What is component 4 in Figure T3?

1. Antenna
2. Transmitter
3. Dummy load
4. Ground

10
T6D08 Which of the following is used together
with an inductor to make a tuned circuit?

1. Resistor
2. Zener diode
3. Potentiometer
4. Capacitor

11
T6C02 What is component 1 in Figure T1?

1. Resistor
2. Transistor
3. Battery
4. connector

12
T6C03 What is component 2 in Figure T1?

1. Resistor
2. Transistor
3. Indicator lamp
4. Connector

Transistors have Three wires.
13
T6D10 What is the function of component 2 in
Figure T1?

1. Give off light when current flows through it
2. Supply electrical energy
3. Control the flow of current
4. Convert electrical energy into radio waves

14
T6C04 What is component 3 in Figure T1?

1. Resistor
2. Transistor
3. Lamp
4. Ground symbol

15
T6C05 What is component 4 in Figure T1?

1. Resistor
2. Transistor
3. Battery
4. Ground symbol

16
T6D03 What type of switch is represented by
item 3 in Figure T2?

1. Single-pole single-throw
2. Single-pole double-throw
3. Double-pole single-throw
4. Double-pole double-throw

17
T6C09 What is component 4 in Figure T2?

1. Variable inductor
2. Double-pole switch
3. Potentiometer
4. Transformer

18
T6C06 What is component 6 in Figure T2?

1. Resistor
2. Capacitor
3. Regulator IC
4. Transistor

19
T6C07 What is component 8 in Figure T2?

1. Resistor
2. Inductor
3. Regulator IC
4. Light emitting diode

L
E
D
20
T6C08 What is component 9 in Figure T2?

1. Variable capacitor
2. Variable inductor
3. Variable resistor
4. Variable transformer

21
T6D04 Which of the following can be used to
display signal strength on a numeric scale?

1. Potentiometer
2. Transistor
3. Meter
4. Relay

22
T6D02 What best describes a relay?

1. A switch controlled by an electromagnet
2. A current controlled amplifier
3. An optical sensor
4. A pass transistor

23
T5B09 What is the approximate amount of change,
measured in decibels (dB), of a power increase
from 5 watts to 10 watts?

1. 2 dB
2. 3 dB
3. 5 dB
4. 10 dB

• 3 dB gain a factor of 2.
• twice as much is 3 db
• half as much is 3 db

24
T5B10 What is the approximate amount of change,
measured in decibels (dB), of a power decrease
from 12 watts to 3 watts?

1. 1 dB
2. 3 dB
3. 6 dB
4. 9 dB

From 12 to 3 is ¼ ? ½ ½ ¼ - 3 db
3 db 6 db

• 3 dB gain a factor of 2.
• twice as much is 3 db
• half as much is 3 db

25
T5B11 What is the approximate amount of change,
measured in decibels (dB), of a power increase
from 20 watts to 200 watts?

1. 10 dB
2. 12 dB
3. 18 dB
4. 28 dB

From 20 to 200 is 10x ? 10 db

• 3 dB gain a factor of 2.
• twice as much is 3 db
• half as much is 3 db
• 10 times is 10 db

26
T6D05 What type of circuit controls the amount of
voltage from a power supply?

1. Regulator
2. Oscillator
3. Filter
4. Phase inverter

27
T6D06 What component is commonly used to change
120V AC house current to a lower AC voltage for
other uses?

1. Variable capacitor
2. Transformer
3. Transistor
4. Diode

28
T6D09 What is the name of a device that combines
several semiconductors and other components into
one package?

1. Transducer
2. Multi-pole relay
3. Integrated circuit
4. Transformer

I
C
29
T6B07 What does the abbreviation "LED" stand
for?

1. Low Emission Diode
2. Light Emitting Diode
3. Liquid Emission Detector
4. Long Echo Delay

30
T6D07 Which of the following is commonly used as
a visual indicator?

1. LED
2. FET
3. Zener diode
4. Bipolar transistor

31
T5B02 What is another way to specify a radio
signal frequency of 1,500,000 hertz?

1. 1500 kHz
2. 1500 MHz
3. 15 GHz
4. 15 kHz

1500 kilo 1500 x 1000 1,500,000
Metric Exponent English
Tera- 1012 Trillion Giga- 109 Billion
Mega- 106 Million Kilo- 103 Thousand
Centi 10-2 Hundredth Milli- 10-3 Thousandth
Micro- 10-6 Millionth Nano- 10-9 Billionth
Pico- 10-12 Trillionth
32
T5B03 How many volts are equal to one kilovolt?

1. One one-thousandth of a volt
2. One hundred volts
3. One thousand volts
4. One million volts

1 kilo 1 x 1000 1,000
Metric Exponent English
Tera- 1012 Trillion Giga- 109 Billion
Mega- 106 Million Kilo- 103 Thousand
Centi 10-2 Hundredth Milli- 10-3 Thousandth
Micro- 10-6 Millionth Nano- 10-9 Billionth
Pico- 10-12 Trillionth
33
T5B06 If an ammeter calibrated in amperes is used
to measure a 3000-milliampere current, what
reading would it show?

1. 0.003 amperes
2. 0.3 amperes
3. 3 amperes
4. 3,000,000 amperes

1 3000 milli- 3000 x ?? 3 1000
Metric Exponent English
Tera- 1012 Trillion Giga- 109 Billion
Mega- 106 Million Kilo- 103 Thousand
Centi 10-2 Hundredth Milli- 10-3 Thousandth
Micro- 10-6 Millionth Nano- 10-9 Billionth
Pico- 10-12 Trillionth
34
T5B05 Which of the following is equivalent to
500 milliwatts?

1. 0.02 watts
2. 0.5 watts
3. 5 watts
4. 50 watts

1 500 milli- 500 x ?? 0.5 1000
Metric Exponent English
Tera- 1012 Trillion Giga- 109 Billion
Mega- 106 Million Kilo- 103 Thousand
Centi 10-2 Hundredth Milli- 10-3 Thousandth
Micro- 10-6 Millionth Nano- 10-9 Billionth
Pico- 10-12 Trillionth
35
T5B01 How many milliamperes is 1.5 amperes?
Metric Exponent English
Tera- 1012 Trillion Giga- 109 Billion
Mega- 106 Million Kilo- 103 Thousand
Centi 10-2 Hundredth Milli- 10-3 Thousandth
Micro- 10-6 Millionth Nano- 10-9 Billionth
Pico- 10-12 Trillionth

1. 15 milliamperes
2. 150 milliamperes
3. 1,500 milliamperes
4. 15,000 milliamperes

1 1500 milli- 1500 x ?? 1.5 1000
36
T5B08 How many microfarads are 1,000,000
picofarads?
Metric Exponent English
Tera- 1012 Trillion Giga- 109 Billion
Mega- 106 Million Kilo- 103 Thousand
Centi 10-2 Hundredth Milli- 10-3 Thousandth
Micro- 10-6 Millionth Nano- 10-9 Billionth
Pico- 10-12 Trillionth

1. 0.001 microfarads
2. 1 microfarad
3. 1000 microfarads
4. 1,000,000,000 microfarads

1,000,000 pico- 106 x 1012 10612 106 1
micro-
37
T5B04 How many volts are equal to one microvolt?

1. One one-millionth of a volt
2. One million volts
3. One thousand kilovolts
4. One one-thousandth of a volt

Metric Exponent English
Tera- 1012 Trillion Giga- 109 Billion
Mega- 106 Million Kilo- 103 Thousand
Centi 10-2 Hundredth Milli- 10-3 Thousandth
Micro- 10-6 Millionth Nano- 10-9 Billionth
Pico- 10-12 Trillionth
1 micro- 106 1 millionth
38
T7D08 Which of the following types of solder is
best for radio and electronic use?

1. Acid-core solder
2. Silver solder
3. Rosin-core solder
4. Aluminum solder

39
T7D09 What is the characteristic appearance of a
"cold" solder joint?

1. Dark black spots
2. A bright or shiny surface
3. A grainy or dull surface
4. A greenish tint

40
T7D07 Which of the following measurements are
commonly made using a multimeter?

1. SWR and RF power
2. Signal strength and noise
3. Impedance and reactance
4. Voltage and resistance

41
T7D11 Which of the following precautions should
be taken when measuring circuit resistance with
an ohmmeter?

1. Ensure that the applied voltages are correct
2. Ensure that the circuit is not powered
3. Ensure that the circuit is grounded
4. Ensure that the circuit is operating at the
   correct frequency

42
T7D06 Which of the following might damage a
multimeter?

1. Measuring a voltage too small for the chosen
   scale
2. Leaving the meter in the milliamps position
   overnight
3. Attempting to measure voltage when using the
   resistance setting
4. Not allowing it to warm up properly

43
T7D10 What is probably happening when an
ohmmeter, connected across a circuit, initially
indicates a low resist-ance and then shows
increasing resistance with time?

1. The ohmmeter is defective
2. The circuit contains a large capacitor
3. The circuit contains a large inductor
4. The circuit is a relaxation oscillator