Precision Software Appli…tions Silver Collection 1/Precision Software Applications Silver Collection Volume One (PSM) (1993).iso/tutor/arsg10.exe/ARSGDAT.4AE

Text File | 1992-10-04 | 20KB | 784 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.
;
;
;
(4AE-1.1)

What is reactive power?

A. Wattless, non-productive power
*
(4AE-1.2)

What is the term for an out-of-phase, non-productive power
associated with inductors and capacitors?

D. Reactive power
*
(4AE-1.3)

What is the term for energy that is stored in an electromagnetic
or electrostatic field?

A. Potential energy
*
(4AE-1.4)

What is responsible for the phenomenon when voltages across
reactances in series can often be larger than the voltages
applied to them?

B. Resonance
*
(4AE-2.1)

What is resonance in an electrical circuit?

C. The frequency at which capacitive reactance equals inductive
reactance
*
(4AE-2.2)

Under what conditions does resonance occur in an electrical
circuit?

B. When inductive and capacitive reactances are equal
*
(4AE-2.3)

What is the term for the phenomena which occurs in an electrical
circuit when the inductive reactance equals the capacitive
reactance?

D. Resonance
*
(4AE-2.4)

What is the approximate magnitude of the impedance of a series
R-L-C circuit at resonance?

B. Approximately equal to the circuit resistance
*
(4AE-2.5)

What is the approximate magnitude of the impedance of a parallel
R-L-C circuit at resonance?

A. High, as compared to the circuit resistance
*
(4AE-2.6)

What is the characteristic of the current flow in a series R-L-C
circuit at resonance?

B. It is at a maximum
*
(4AE-2.7)

What is the characteristic of the current flow in a parallel
R-L-C circuit at resonance?

B. The current circulating in the parallel elements is at a
maximum
*
(4AE-3.1)

What is the skin effect?

A. The phenomenon where RF current flows in a thinner layer of
the conductor, close to the surface, as frequency increases
*
(4AE-3.2)

What is the term for the phenomenon where most of an RF current
flows along the surface of the conductor?

C. Skin effect
*
(4AE-3.3)

Where does practically all of RF current flow in a conductor?

A. Along the surface
*
(4AE-3.4)

Why does practically all of an RF current flow within a few
thousandths-of-an-inch of the conductor's surface?

A. Because of skin effect
*
(4AE-3.5)

Why is the resistance of a conductor different for RF current
than for DC?

C. Because of skin effect
*
(4AE-4.1)

What is a magnetic field?

B. A force set up when current flows through a conductor
*
(4AE-4.2) In what direction is the magnetic field about a
conductor when current is flowing?

D. In a direction determined by the left hand rule
*
(4AE-4.3)

What device is used to store electrical energy in an
electrostatic field?

C. A capacitor
*
(4AE-4.4)

What is the term used to express the amount of electrical energy
stored in an electrostatic field?

B. Joules
*
(4AE-4.5)

What factors determine the capacitance of a capacitor?

B. Area of the plates, distance between the plates and the
dielectric constant of the material between the plates
*
(4AE-4.6)

What is the dielectric constant for air?

A. Approximately 1
*
(4AE-4.7)

What determines the strength of the magnetic field around a
conductor?

D. The amount of current
*
(4AE-5.1)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 50 microhenrys and C is 40 picofarads?

C. 3.56 MHz
*
(4AE-5.2)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 40 microhenrys and C is 200 picofarads?

B. 1.78 MHz
*
(4AE-5.3)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 50 microhenrys and C is 10 picofarads?

C. 7.12 MHz
*
(4AE-5.4)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 25 microhenrys and C is 10 picofarads?

A. 10.1 MHz
*
(4AE-5.5)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 3 microhenrys and C is 40 picofarads?

B. 14.5 MHz
*
(4AE-5.6)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 4 microhenrys and C is 20 picofarads?

D. 17.8 MHz
*
(4AE-5.7)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 8 microhenrys and C is 7 picofarads?

C. 21.3 MHz
*
(4AE-5.8)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 3 microhenrys and C is 15 picofarads?

A. 23.7 MHz
*
(4AE-5.9)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 4 microhenrys and C is 8 picofarads?

B. 28.1 MHz
*
(4AE-5.10)

What is the resonant frequency of the circuit in Figure 4E-5-1
when L is 1 microhenry and C is 9 picofarads?

C. 53.1 MHz
*
(4AE-5.11)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 1 microhenry and C is 10 picofarads?

A. 50.3 MHz
*
(4AE-5.12)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 2 microhenrys and C is 15 picofarads?

B. 29.1 MHz
*
(4AE-5.13)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 5 microhenrys and C is 9 picofarads?

C. 23.7 MHz
*
(4AE-5.14)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 2 microhenrys and C is 30 picofarads?

D. 20.5 MHz
*
(4AE-5.15)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 15 microhenrys and C is 5 picofarads?

A. 18.4 MHz
*
(4AE-5.16)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 3 microhenrys and C is 40 picofarads?

B. 14.5 MHz
*
(4AE-5.17)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 40 microhenrys and C is 6 picofarads?

C. 10.3 MHz
*
(4AE-5.18)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 10 microhenrys and C is 50 picofarads?

D. 7.12 MHz
*
(4AE-5.19)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 200 microhenrys and C is 10 picofarads?

A. 3.56 MHz
*
(4AE-5.20)

What is the resonant frequency of the circuit in Figure 4AE-5-2
when L is 90 microhenrys and C is 100 picofarads?

B. 1.68 MHz
*
(4AE-5.21)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 1.8 MHz and a Q of 95?

A. 18.9 kHz
*
(4AE-5.22)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 3.6 MHz and a Q of 218?

D. 16.5 kHz
*
(4AE-5.23)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 7.1 MHz and a Q of 150?

C. 47.3 kHz
*
(4AE-5.24)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 12.8 MHz and a Q of 218?

D. 58.7 kHz
*
(4AE-5.25)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 14.25 MHz and a Q of 150?

A. 95 kHz
*
(4AE-5.26)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 21.15 MHz and a Q of 95?

D. 222.6 kHz
*
(4AE-5.27)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 10.1 MHz and a Q of 225?

B. 44.9 kHz
*
(4AE-5.28)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 18.1 MHz and a Q of 195?

A. 92.8 kHz
*
(4AE-5.29)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 3.7 MHz and a Q of 118?

C. 31.4 kHz
*
(4AE-5.30)

What is the half-power bandwidth of a parallel resonant circuit
which has a resonant frequency of 14.25 MHz and a Q of 187?

D. 76.2 kHz
*
(4AE-5.31)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 14.128 MHz, the inductance is 2.7 microhenrys and
the resistance is 18,000 ohms?

A. 75.1
*
(4AE-5.32)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 14.128 MHz, the inductance is 4.7 microhenrys and
the resistance is 18,000 ohms?

B. 43.1
*
(4AE-5.33)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 4.468 MHz, the inductance is 47 microhenrys and the
resistance is 180 ohms?

C. 0.136
*
(4AE-5.34)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 14.225 MHz, the inductance is 3.5 microhenrys and
the resistance is 10,000 ohms?

D. 31.9
*
(4AE-5.35)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 7.125 MHz, the inductance is 8.2 microhenrys and
the resistance is 1,000 ohms?

D. 2.73
*
(4AE-5.36)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 7.125 MHz, the inductance is 10.1 microhenrys and
the resistance is 100 ohms?

A. 0.221
*
(4AE-5.37)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 7.125 MHz, the inductance is 12.6 microhenrys and
the resistance is 22,000 ohms?

B. 39
*
(4AE-5.38)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 3.625 MHz, the inductance is 3 microhenrys and the
resistance is 2,200 ohms?

B. 32.2
*
(4AE-5.39)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 3.625 MHz, the inductance is 42 microhenrys and the
resistance is 220 ohms?

D. 0.23
*
(4AE-5.40)

What is the Q of the circuit in Figure 4AE-5-3 when the resonant
frequency is 3.625 MHz, the inductance is 43 microhenrys and the
resistance is 1,800 ohms?

A. 1.84
*
(4AE-6.1)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 25 ohms,
R is 100 ohms, and Xl is 100 ohms?

A. 36.9 degrees with the voltage leading the current
*
(4AE-6.2)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 25 ohms,
R is 100 ohms, and Xl is 50 ohms?

B. 14 degrees with the voltage leading the current
*
(4AE-6.3)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 500
ohms, R is 1000 ohms, and Xl is 250 ohms?

C. 14.1 degrees with the voltage lagging the current
*
(4AE-6.4)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 75 ohms,
R is 100 ohms, and Xl is 100 ohms?

B. 14 degrees with the voltage leading the current
*
(4AE-6.5)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 50 ohms,
R is 100 ohms, and Xl is 25 ohms?

D. 14 degrees with the voltage lagging the current
*
(4AE-6.6)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 75 ohms,
R is 100 ohms, and Xl is 50 ohms?

B. 14 degrees with the voltage lagging the current
*
(4AE-6.7)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 100
ohms, R is 100 ohms, and X1 is 75 ohms?

A. 14 degrees with the voltage lagging the current
*
(4AE-6.8)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 250
ohms, R is 1000 ohms, and Xl is 500 ohms?

D. 14.04 degrees with the voltage leading the current
*
(4AE-6.9)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 50 ohms,
R is 100 ohms, and Xl is 75 ohms?

D. 14 degrees with the voltage leading the current
*
(4AE-6.10)

What is the phase angle between the voltage across and the
current through the circuit in Figure 4AE-6, when Xc is 100
ohms, R is 100 ohms, and X1 is 25 ohms?

C. 36.9 degrees with the voltage lagging the current
*
(4AE-7.1)

Why would the rate at which electrical energy is used in a
circuit be less than the product of the magnitudes of the AC
voltage and current?

A. Because there is a phase angle that is greater than zero
between the current and voltage
*
(4AE-7.2)

In a circuit where the AC voltage and current are out of phase,
how can the true power be determined?

A. By multiplying the apparent power times the power factor
*
(4AE-7.3)

What does the power factor equal in an R-L circuit having a 60
degree phase angle between the voltage and the current?

C. 0.5
*
(4AE-7.4)

What does the power factor equal in an R-L circuit having a 45
degree phase angle between the voltage and the current?

D. 0.707
*
(4AE-7.5)

What does the power factor equal in an R-L circuit having a 30
degree phase angle between the voltage and the current?

C. 0.866
*
(4AE-7.6)

How many watts are being consumed in a circuit having a power
factor of 0.2 when the input is 100-VAC and 4-amperes is being
drawn?

B. 80 watts
*
(4AE-7.7)

How many watts are being consumed in a circuit having a power
factor of 0.6 when the input is 200-VAC and 5-amperes is being
drawn?

D. 600 watts
*
(4AE-8.1)

What is the effective radiated power of a station in repeater
operation with 50 watts transmitter power output, 4 dB feedline
loss, 3 dB duplexer and circulator loss, and 6 dB antenna gain?

B. 39.7 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.2)

What is the effective radiated power of a station in repeater
operation with 50 watts transmitter power output, 5 dB feedline
loss, 4 dB duplexer and circulator loss, and 7 dB antenna gain?

C. 31.5 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.3)

What is the effective radiated power of a station in repeater
operation with 75 watts transmitter power output, 4 dB feedline
loss, 3 dB duplexer and circulator loss, and 10 dB antenna gain?

D. 150 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.4)

What is the effective radiated power of a station in repeater
operation with 75 watts transmitter power output, 5 dB operation
feedline loss, 4 dB duplexer and circulator loss, and 6 dB
antenna gain?

A. 37.6 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.5)

What is the effective radiated power of a station in repeater
operation with 100 watts transmitter power output, 4 dB feedline
loss, 3 dB duplexer and circulator loss, and 7 dB antenna gain?

D. 100 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.6)

What is the effective radiated power of a station in repeater
operation with 100 watts transmitter power output, 5 dB feedline
loss, 4 dB duplexer and circulator loss, and 10 dB antenna gain?

B. 126 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.7)

What is the effective radiated power of a station in repeater
operation with 120 watts transmitter power output, 5 dB feedline
loss, 4 dB duplexer and circulator loss, and 6 dB antenna gain?

C. 60 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.8)

What is the effective radiated power of a station in repeater
operation with 150 watts transmitter power output, 4 dB feedline
loss, 3 dB duplexer and circulator loss, and 7 dB antenna gain?

D. 150 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.9)

What is the effective radiated power of a station in repeater
operation with 200 watts transmitter power output, 4 dB feedline
loss, 4 dB duplexer and circulator loss, and 10 dB antenna gain?

A. 317 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-8.10)

What is the effective radiated power of a station in repeater
operation with 200 watts transmitter power output, 4 dB feedline
loss, 3 dB duplexer and circulator loss, and 6 dB antenna gain?

D. 159 watts, assuming the antenna gain is referenced to a
half-wave dipole
*
(4AE-9.1)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 8-volts, R1 is
8 kilohms, and R2 is 8 kilohms?

B. R3 = 4 kilohms and V2 = 4 volts
*
(4AE-9.2)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 8-volts, R1 is
16 kilohms, and R2 is 8 kilohms?

C. R3 = 5.33 kilohms and V2 = 2.67 volts
*
(4AE-9.3)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 8-volts, R1 is
8 kilohms, and R2 is 16 kilohms?

C. R3 = 5.33 kilohms and V2 = 5.33 volts
*
(4AE-9.4)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 10-volts, R1
is 10 kilohms, and R2 is 10 kilohms?

D. R3 = 5 kilohms and V2 = 5 volts
*
(4AE-9.5)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 10-volts, R1
is 20 kilohms, and R2 is 10 kilohms?

C. R3 = 6.67 kilohms and V2 = 3.33 volts
*
(4AE-9.6)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 10-volts, R1
is 10 kilohms, and R2 is 20 kilohms?

A. R3 = 6.67 kilohms and V2 = 6.67 volts
*
(4AE-9.7)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 12-volts, R1
is 10 kilohms, and R2 is 10 kilohms?

B. R3 = 5 kilohms and V2 = 6 volts
*
(4AE-9.8)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 12-volts, R1
is 20 kilohms, and R2 is 10 kilohms?

B. R3 = 6.67 kilohms and V2 = 4 volts
*
(4AE-9.9)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 12-volts, R1
is 10 kilohms, and R2 is 20 kilohms?

C. R3 = 6.67 kilohms and V2 = 8 volts
*
(4AE-9.10)

In Figure 4AE-9, what values of V2 and R3 result in the same
voltage and current characteristics as when V1 is 12-volts, R1
is 20 kilohms, and R2 is 20 kilohms?

C. R3 = 10 kilohms and V2 = 6 volts
*