home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Precision Software Appli…tions Silver Collection 1
/
Precision Software Applications Silver Collection Volume One (PSM) (1993).iso
/
tutor
/
arsg10.exe
/
ARSGDAT.4AH
< prev
next >
Wrap
Text File
|
1992-10-04
|
10KB
|
472 lines
;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\:
; :
; AMATEUR RADIO STUDY GUIDE v1.00 :
; :
; Copyright (c) 1992 David Drzyzga - All Rights Reserved :
; :
; Based on a program coded in BASIC by Russ Revels :
; :
;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\:
;
; You can include comments an the file anywhere you want
; just like these comments. You cannot put a comment in
; the middle of a line though.
;
; When modifying this file, there are several things you
; must be aware of:
;
; -> Any line of text in this file cannot exceed 65 characters!
; this is the 65th character^
;
; No harm will be done, but nothing over 65 characters will
; be read by the program.
;
; -> Do not make questions more than 20 lines long, or you
; will receive an 'out of memory' error when you execute
; the program.
;
; -> You can add or delete questions as you please, just be
; sure to follow the format of the existing questions.
;
;
;
(4AH-1.1)
What is emission A3C?
A. Facsimile
*
(4AH-1.2)
What type of emission is produced when an amplitude modulated
transmitter is modulated by a facsimile signal?
B. A3C
*
(4AH-1.3)
What is facsimile?
C. The transmission of printed pictures by electrical means
*
(4AH-1.4)
What is emission F3C?
D. Facsimile
*
(4AH-1.5)
What type of emission is produced when a frequency modulated
transmitter is modulated by a facsimile signal?
A. F3C
*
(4AH-1.6)
What is emission A3F?
B. Television
*
(4AH-1.7)
What type of emission is produced when an amplitude modulated
transmitter is modulated by a television signal?
B. A3F
*
(4AH-1.8)
What is emission F3F?
D. Television
*
(4AH-1.9)
What type of emission is produced when a frequency modulated
transmitter is modulated by a television signal?
C. F3F
*
(4AH-1.10)
What type of emission results when a single sideband transmitter
is used for slow-scan television?
D. J3F
*
(4AH-2.1)
How can an emission F3E signal be produced?
C. By using a reactance modulator on an oscillator
*
(4AH-2.2)
How can an emission A3E signal be produced?
D. By modulating the plate supply voltage to a class C amplifier
*
(4AH-2.3)
How can an emission J3E signal be produced?
A. By producing a double sideband signal with a balanced
modulator and then removing the unwanted sideband by filtering
*
(4AH-3.1)
What is meant by the term deviation ratio?
B. The ratio of the maximum carrier frequency deviation to the
highest audio modulating frequency
*
(4AH-3.2)
In an emission F3E signal, what is the term for the maximum
deviation from the carrier frequency divided by the maximum
audio modulating frequency?
C. Deviation ratio
*
(4AH-3.3)
What is the deviation ratio for an emission F3E signal having a
maximum frequency swing of plus or minus 5 kHz and accepting a
maximum modulation rate of 3 kHz?
D. 1.66
*
(4AH-3.4)
What is the deviation ratio for an emission F3E signal having a
maximum frequency swing of plus or minus 7.5 kHz and accepting a
maximum modulation rate of 3.5 kHz?
A. 2.14
*
(4AH-4.1)
What is meant by the term modulation index?
B. The ratio between the deviation of a frequency modulated
signal and the modulating frequency
*
(4AH-4.2)
In an emission F3E signal, what is the term for the ratio
between the deviation of a frequency modulated signal and the
modulating frequency?
D. Modulation index
*
(4AH-4.3)
How does the modulation index of a phase-modulated emission vary
with the modulated frequency?
D. The modulation index does not depend on the RF carrier
frequency (the modulated frequency)
*
(4AH-4.4)
In an emission F3E signal having a maximum frequency deviation
of 3000 Hz either side of the carrier frequency, what is the
modulation index when the modulating frequency is 1000 Hz?
A. 3
*
(4AH-4.5)
What is the modulation index of an emission F3E transmitter
producing an instantaneous carrier deviation of 6-kHz when
modulated with a 2-kHz modulating frequency?
B. 3
*
(4AH-5.1)
What are electromagnetic waves?
C. A wave consisting of an electric field and a magnetic field
at right angles to each other
*
(4AH-5.2)
What is a wave front?
D. A fixed point in an electromagnetic wave
*
(4AH-5.3)
At what speed do electromagnetic waves travel in free space?
A. Approximately 300 million meters per second
*
(4AH-5.4)
What are the two interrelated fields considered to make up an
electromagnetic wave?
B. An electric field and a magnetic field
*
(4AH-5.5)
Why do electromagnetic waves not penetrate a good conductor to
any great extent?
C. Because of Eddy currents
*
(4AH-6.1)
What is meant by referring to electromagnetic waves travel in
free space?
D. Propagation of energy across a vacuum by changing electric
and magnetic fields
*
(4AH-6.2)
What is meant by referring to electromagnetic waves as
horizontally polarized?
A. The electric field is parallel to the earth
*
(4AH-6.3)
What is meant by referring to electromagnetic waves as having
circular polarization?
B. The electric field rotates
*
(4AH-6.4)
When the electric field is perpendicular to the surface of the
earth, what is the polarization of the electromagnetic wave?
C. Vertical
*
(4AH-6.5)
When the magnetic field is parallel to the surface of the earth,
what is the polarization of the electromagnetic wave?
D. Vertical
*
(4AH-6.6)
When the magnetic field is perpendicular to the surface of the
earth, what is the polarization of the electromagnetic field?
A. Horizontal
*
(4AH-6.7)
When the electric field is parallel to the surface of the earth,
what is the polarization of the electromagnetic wave?
B. Horizontal
*
(4AH-7.1)
What is a sine wave?
B. A wave whose amplitude at any given instant can be
represented by a point on a wheel rotating at a uniform speed
*
(4AH-7.2)
How many times does a sine wave cross the zero axis in one
complete cycle?
C. 2 times
*
(4AH-7.3)
How many degrees are there in one complete sine wave cycle?
D. 360 degrees
*
(4AH-7.4)
What is the period of a wave?
A. The time required to complete one cycle
*
(4AH-7.5)
What is a square wave?
B. A wave which abruptly changes back and forth between two
voltage levels and which remains an equal time at each level
*
(4AH-7.6)
What is a wave called which abruptly changes back and forth
between two voltage levels and which remains an equal time at
each level?
C. A square wave
*
(4AH-7.7)
Which sine waves make up a square wave?
D. The fundamental frequency and all odd harmonics
*
(4AH-7.8)
What type of wave is made up of sine waves of the fundamental
frequency and all the odd harmonics?
A. Square wave
*
(4AH-7.9)
What is a sawtooth wave?
B. A wave with a straight line rise time faster than the fall
time (or vice versa)
*
(4AH-7.10)
What type of wave is characterized by a rise time significantly
faster than the fall time (or vice versa)?
C. A sawtooth wave
*
(4AH-7.11)
Which sine waves make up a sawtooth wave?
D. The fundamental frequency and all harmonics
*
(4AH-7.12)
What type of wave is made up of sine waves at the fundamental
frequency and all the harmonics?
A. A sawtooth wave
*
(4AH-8.1)
What is the meaning of the term root mean square value of an AC
voltage?
C. The value of an AC voltage that would cause the same heating
effect in a given resistor as a DC voltage of the same value
*
(4AH-8.2)
What is the term used in reference to a DC voltage that would
cause the same heating in a resistor as a certain value of AC
voltage?
C. Root mean square
*
(4AH-8.3)
What would be the most accurate way of determining the RMS
voltage of a complex waveform?
D. By measuring the heating effect in a known resistor
*
(4AH-8.4)
What is the RMS voltage at a common household electrical power
outlet?
A. 117-VAC
*
(4AH-8.5)
What is the peak voltage at a common household electrical
outlet?
B. 165.5 volts
*
(4AH-8.6)
What is the peak-to-peak voltage at a common household
electrical outlet?
C. 331 volts
*
(4AH-8.7)
What is the RMS voltage of a 165-volt peak pure sine wave?
D. 117-VAC
*
(4AH-8.8)
What is the RMS value of a 331-volt peak-to-peak pure sine wave?
A. 117-VAC
*
(4AH-9.1)
For many types of voices, what is the ratio of PEP to average
power during a modulation peak in an emission J3E signal?
C. Approximately 2.5 to 1
*
(4AH-9.2)
In an emission J3E signal, what determines the PEP-to-average
power ratio?
C. The speech characteristics
*
(4AH-9.3)
What is the approximate DC input power to a Class B RF power
amplifier stage in an emission F3E transmitter when the PEP
output power is 1500 watts?
C. Approximately 2500 watts
*
(4AH-9.4)
What is the approximate DC input power to a Class C RF power
amplifier stage in an emission F1B transmitter when the PEP
output power is 1000 watts?
B. Approximately 1250 watts
*
(4AH-9.5)
What is the approximate DC input power to a Class AB RF power
amplifier stage in an emission N0N transmitter when the PEP
output power is 500 watts?
D. Approximately 1000 watts
*
(4AH-10.1)
Where is the noise generated which primarily determines the
signal-to-noise ratio in a 160 meter band receiver?
D. In the atmosphere
*
(4AH-10.2)
Where is the noise generated which primarily determines the
signal-to-noise ratio in a 2 meter band receiver?
A. In the receiver front end
*
(4AH-10.3)
Where is the noise generated which primarily determines the
signal-to-noise ratio in a 1.25 meter band receiver?
B. In the receiver front end
*
(4AH-10.4)
Where is the noise generated which primarily determines the
signal-to-noise ratio in a 0.70 meter band receiver?
C. In the receiver front end
*