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ELE2G
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1992-01-26
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FCC NOVICE Exam Question Pool. Subelement 2G.
Practical Circuits. 2 Questions.
---------------------------------------------------
2G 1-1.1 B
What is the unlabeled block (?) in this diagram?
ANTENNA
\│/
FEED LINE─│
┌─────────────┐ ┌────┴────┐ ┌───────┐
│ TRANSMITTER ├─────┤ ? ├─────┤ DUMMY │
│ │ │ │ │ LOAD │
└──────┬──────┘ └─────────┘ └───────┘
│
┌────┴────┐ A. A terminal-node controller
│ POWER │ B. An antenna switch
│ SUPPLY │ C. A telegraph key
└─────────┘ D. A TR switch
2G 1-1.2 C
What is the unlabeled block (?) in this diagram?
ANTENNA
\│/
FEED LINE─│
┌─────────────┐ ┌───┴────┐ ┌──────────┐
│ ? ├─────┤ TR ├─────┤ RECEIVER │
│ │ │ SWITCH │ │ │
└──────┬──────┘ └────────┘ └──────────┘
│
┌────┴────┐ A. A microphone
│ POWER │ B. A receiver
│ SUPPLY │ C. A transmitter
└─────────┘ D. An SWR meter
2G 1-1.3 D
What is the unlabeled block (?) in this diagram?
ANTENNA
\│/
FEED LINE─│
┌─────────────┐ ┌────┴────┐ ┌──────────┐
│ TRANSMITTER ├─────┤ TR ├─────┤ ? │
│ │ │ SWITCH │ │ │
└──────┬──────┘ └─────────┘ └──────────┘
│
┌────┴────┐ A. A key click filter
│ KEY │ B. An antenna tuner
│ │ C. A power supply
└─────────┘ D. A receiver
2G 1-1.4 A
What is the unlabeled block (?) in this diagram?
┌────────┐
┌─┤ DIPOLE │
┌─────────┐ ┌────────┐ ┌─────────┐ │ └────────┘
│ │ │ SWR │ │ ANTENNA ├─┘ ┌────────┐
│ ? ├────┤ BRIDGE ├────┤ SWITCH ├───┤ BEAM │
│ │ │ │ │ ├┐ └────────┘
└─────────┘ └────────┘ └─────────┘│ ┌─────────┐
└──┤ DUMMY │
A. Transceiver │ LOAD │
B. A TR switch └─────────┘
C. An antenna tuner
D. A modem
2G 1-1.5 D
In block diagram 2G-1, which symbol represents an antenna?
\ │ /
┌─────────┐ ┌─────────┐ ┌─────────┐ \│/ 4
│ │ │ │ │ │ │
│ 1 ├────┤ 2 ├────┤ 3 ├──────┘
│ │ │ │ │ │
└─────────┘ └─────────┘ └─────────┘
.
A. 1
B. 2 FIGURE 2G-1
C. 3
D. 4
2G 1-2.1 B
What is the unlabeled block (?) in this diagram?
┌────────┐
┌─┤ DIPOLE │
┌───────────┐ ┌────────┐ ┌─────────┐ │ └────────┘
│TRANSMITTER│ │ SWR │ │ ├─┘ ┌────────┐
│ ├───┤ BRIDGE ├────┤ ? ├───┤ BEAM │
│ │ │ │ │ ├┐ └────────┘
└───────────┘ └────────┘ └─────────┘│ ┌─────────┐
└──┤ DUMMY │
A. A pi network │ LOAD │
B. An antenna switch └─────────┘
C. A key click filter
D. A mixer
2G 1-2.2 A
What is the unlabeled block (?) in this diagram?
A. A TR switch ANTENNA
B. A variable frequency oscillator ┌─────────┐ \│/
C. A linear amplifier ┌────────┤ ANTENNA ├─────┘
D. A microphone │ │ TUNER │
│ └─────────┘
┌────┴────┐
│ SWR │
│ BRIDGE │
└────┬────┘
┌───────┐ ┌─────────────┐ ┌────┴────┐ ┌──────────┐
│ KEY ├───┤ TRANSMITTER ├───┤ ? ├───┤ RECEIVER │
│ │ │ │ │ │ │ │
└───────┘ └─────────────┘ └─────────┘ └──────────┘
2G 1-2.3 B
What is the unlabeled block (?) in this diagram?
ANTENNA
\│/
│
FEED LINE─│
┌───────────┐ ┌─────────┐ ┌─────────┐ │
│ │ │ SWR │ │ │ │
│TRANSCEIVER├────┤ BRIDGE ├────┤ ? ├──────┘
│ │ │ │ │ │
└───────────┘ └─────────┘ └─────────┘
.
A. An antenna switch
B. An impedance-matching network
C. A key click filter
D. A terminal-node controller
2G 1-2.4 D
In block diagram 2G-1, if component 1 is a transceiver and
component 2 is an SWR meter, what is component 3?
A. A power supply
B. A receiver
C. A microphone
D. An impedance-matching device
\ │ /
┌─────────┐ ┌─────────┐ ┌─────────┐ \│/ 4
│ │ │ │ │ │ │
│ 1 ├────┤ 2 ├────┤ 3 ├──────┘
│ │ │ │ │ │
└─────────┘ └─────────┘ └─────────┘
.
FIGURE 2G-1
2G 1-2.5 D
In block diagram 2G-1, if component 2 is an SWR meter and component
3 is an impedance-matching device, what is component 1?
A. A power supply
B. An antenna
C. An antenna switch
D. A transceiver
\ │ /
┌─────────┐ ┌─────────┐ ┌─────────┐ \│/ 4
│ │ │ │ │ │ │
│ 1 ├────┤ 2 ├────┤ 3 ├──────┘
│ │ │ │ │ │
└─────────┘ └─────────┘ └─────────┘
.
FIGURE 2G-1
2G 2.1 B
In an amateur station designed for Morse radiotelegraph
operation, what station accessory will you need to go
with your transmitter?
A. A terminal-node controller
B. A telegraph key
C. An SWR meter
D. An antenna switch
2G 2.2 C
What is the unlabeled block (?) in this diagram of a Morse
telegraphy station?
A. A sidetone oscillator ANTENNA
B. A microphone \│/
C. A telegraph key │
D. A DTMF keypad FEED LINE───│
┌────┴────┐
│ SWR │
│ BRIDGE │
└────┬────┘
│
┌───────┐ ┌─────────────┐ ┌────┴────┐ ┌──────────┐
│ ? ├───┤ TRANSMITTER ├───┤ TR ├───┤ RECEIVER │
│ │ │ │ │ SWITCH │ │ │
└───────┘ └─────────────┘ └─────────┘ └──────────┘
2G 2.3 C
What station accessory do many amateurs use to help form good
Morse code characters?
A. A sidetone oscillator
B. A key-click filter
C. An electronic keyer
D. A DTMF keypad
2G 3.1 D
In an amateur station designed for radio-telephone
operation, what station accessory will you need to
go with your transmitter?
A. A splatter filter
B. A terminal-voice controller
C. A receiver audio filter
D. A microphone
2G 3.2 D
What is the unlabeled block (?) in this diagram of a
radiotelephone station?
A. A splatter filter
B. A terminal-voice controller ANTENNA
C. A receiver audio filter \│/
D. A microphone │
FEED LINE───│
│
┌─────┐ ┌─────────────┐ ┌────────┐ ┌────┴────┐ ┌──────────┐
│ ? ├──┤ TRANSMITTER ├──┤ SWR ├──┤ TR ├──┤ RECEIVER │
│ │ │ │ │ BRIDGE │ │ SWITCH │ │ │
└─────┘ └─────────────┘ └────────┘ └─────────┘ └──────────┘
2G 4.1 A
In an amateur station designed for radioteletype operation, what
station accessories will you need to go with your transmitter?
A. A modem and a teleprinter or computer system
B. A computer, a printer and a RTTY refresh unit
C. A terminal-node controller
D. A modem, a monitor and a DTMF keypad
2G 4.2 C
What is the unlabeled block (?) in this diagram?
A. An RS-232 interface
B. SWR bridge ANTENNA
C. Modem \│/
D. Terminal-network controller │
FEED LINE───│
│
┌──────────┐ ┌─────────┐ ┌───────────┐ │
│ COMPUTER ├──┤ ? ├──┤TRANSCEIVER├───┘
│ SYSTEM │ │ │ │ │
└──────────┘ └─────────┘ └───────────┘
2G 5.1 A
In a packet-radio station, what device connects between the
radio transceiver and the computer terminal?
A. A terminal-node controller
B. An RS-232 interface
C. A terminal refresh unit
D. A tactical network control system
2G 5.2 A
What is the unlabeled block (?) in this diagram of a
packet-radio station?
A. A terminal-node controller
B. An RS-232 interface ANTENNA
C. A terminal refresh unit \│/
D. A tactical network control system │
FEED LINE───│
│
┌──────────┐ ┌─────────┐ ┌───────────┐ │
│ COMPUTER ├──┤ ? ├──┤TRANSCEIVER├───┘
│ SYSTEM │ │ │ │ │
└──────────┘ └─────────┘ └───────────┘
2G 5.3 C
Where does a terminal-node controller connect in an amateur
packet-radio station?
A. Between the antenna and the radio
B. Between the computer and the monitor
C. Between the computer or terminal and the radio
D. Between the keyboard and the computer
--------------------------------------------------
End of Subelement 2G.