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Amateur Radio Practice Questions
This has been tested on Internet Explorer V 5 only at present. It will not work properly on Netscape 4.7
1. In a superhetrodyne receiver which stages provide the most gain and selectivity?
a
Mixer.
b
R.F. Amplifiers
c
I.F. Amplifiers
d
A.F. Amplifiers.
2. In the call GM0BXR to what area does the M refer
a
Maldeves
b
Scotland
c
Isle of Man
d
Wales
3. Which of the following is not in an amateur band
a
51.20Mhz
b
144.15
c
432.29
d
1370.77
4. In which waveband is there a low power segment?
a
40 m
b
30 m
c
160 m
d
2m
5. Working from tempory premises in Wales we use
a
GW2ZZZ/A and the full address of the temporary premises.
b
G2ZZZ/A and the location.
c
GM22ZZ/A and the temporary address.
d
GW2ZZZ/P and the location
6. Which one of the following designates a class of UK Amateur Licence
a
P.
b
CB.
c
B.
d
M.
7. The Fig.shows a sine wave. What is the root mean square (r.m.s.) value of the voltage.
a
the same as the mean value
b
0.636 of the maximum value
c
0.707 of the maximum value
d
the square root of the maximum value
8. The power amplifier of a transmitter is operated in linear mode. The output will
a
be generated with the minimum power supply consumption
b
only be suitable for morse and data
c
contain less harmonics than the input
d
be an amplified replica of the input waveform.
9. Which one of the following is a club callsign?
a
GD1XYZ.
b
GM1XYZ.
c
GS1XYZ.
d
GU1XYZ.
10. The essential requirement for a log book is that it must have?
a
no fewer than 50 pages.
b
be obtained from the City and Guilds.
c
not be loose leaf.
d
be loose leaf.
11. To be a holder of a A class liscence you must be.
a
over 16 years of age
b
have paid the fees for the R.A.E.
c
a holder of a morse test pass certificate.
d
have appled to take the morse test.
12. Under what emergency situation could certain H.F. Amateur bands be used.
a
difficulties due to propagation of aeronautical services
b
international disaster communications.
c
Poor maritime reception.
d
Failure of public correspondence services between nations.
13. The holder of a Class A amateur licence may allow operation under their supervision by
a
A British Telecom Representative
b
A Radio Investigation Service Officer
c
A holder of an Amateur Radio licence from any country
d
A 27Mhz FM Citizen's Band Licence Holder
14. A licensed amateur may use his station for which non profit making organisation?
a
A Social Club for Ex Servicemen
b
An organisation for the furtherance of Amateur Radio
c
A church organisation
d
A political organisation they support
15. In which countries can a holder of a Class A Licence operate
a
North America and Canada.
b
Any which are CE approved.
c
Any that implemented CEPT recommendation T/R 61-01.
d
European Economic Community Members.
16. The secretary of state may organise an inspection of an amateur station for
a
checking that the station is in regular use
b
checking that the licence terms have been complied with
c
checking all log entries have been signed
d
checking for a satisfactory S.W.R.
17. The Fig.shows Field Effect Transistor. The connection symbol marked with an X is.
a
cathode
b
drain
c
gate
d
emitter
18. What is the corrct suffix for Maritime Mobile operation
a
/MM
b
/MA
c
/MAR
d
/M
19. The licensee shall test his transmisions for radiation of spurious emissions and keep a record of these tests?
a
With an oscilloscope .
b
once a month.
c
every six months.
d
from time to time.
20. A common cause of fading in the H.F. bands is?
a
variation in receiver sensitvity.
b
clouds passing overhead.
c
movement of the antenna.
d
summation of signals arriving from different paths.
21. In addition to details of callsigns of stations worked and except during automatic operation of a digital mode the station log should include details of.
a
Received Signal Strength
b
Antenna details.
c
Initials of the license holder.
d
CQ calls.
22. In order to keep the power requirements of a satellite transponder to a minimum what would be the best modulation type.
a
Frequency Modulation
b
Single Sideband
c
Amplitude Modulation
d
Radio Teleprinter (RTTY)
23. Which of the following is used for F. M. demodulation?
a
Balanced Mixer
b
Ratio Detector
c
Envelope Detector
d
Product Detector
24. How can the power output of an amateur station be substantially increased?
a
By improving the SWR
b
By the use of an Aerial Tuning Unit (A.T.U.)
c
Use of a linea power amplifier
d
By Switching to Upper Sideband
25. Why would a negative temperature coefficient capacitor be used in a Voltage Controlled Oscillator
a
To compensate for drift due to the increase in inductance of the coil with temperature.
b
To prevent thermal runaway.
c
To improve the selectivity of tuning..
d
To improve the noise performance of the oscillator
26. When would a two tone test be used.
a
To check for radiation of 2nd and 3rd harmonics
b
To set up the modulation level of an A. M. signal.
c
To set up a linear amplifier for single sideband
d
To check toneburst access to a 2 meter repeater.
27. The Fig.shows a bipolar transistor circuit. What is the purpose of A and B.
a
To provide a base bias potential
b
To prevent thermal Runaway
c
Increase the gain
d
Improve the H.F. response of the circuit
28. In the Amateur Licence Terms, Provisions and limitations booklet BR68 Wireless telegraphy means
a
any permitted type of transmision.
b
morse and data only.
c
morse, RTTY, data, facsimile, SSTV only.
d
all types of transmissions except telephony.
29. What device would be used to verify that a non crystal controlled transmitter was operating within band?
a
Crystal Oven.
b
AbsorbtionWavemeter.
c
A heterodyne wavemeter using a crystal oscillitor.
d
A bandspread control.
30. What does the abbreviation R.S.T. mean?
a
Received Signal Tone.
b
Relayed Signal Tone.
c
Readabilty; Signal Strength; Tone.
d
Received Standard Transmission.
31. Band planning.
a
Minimises Interference between different modes
b
Is a licence condition which must be complied with
c
Is only applicable in the 2 metre band.
d
Is only applicble for SSTV and digital modes..
32. A station isolation switch is installed so that in the event of electric shock power can be switched off. The most important feature of the switch is:-
a
should be illuminated with the word Danger on it.
b
should be red in colour.
c
function and position known to all household members.
d
Must be mounted out of the reach of children.
33. Ionospheric propagation occurs most often in the frequency range.
a
300KHz - 3MHz
b
30MHz - 300MHz
c
3MHz - 30 MHz
d
30KHz - 300KHz
34. A transmitter has an output of 400 watts. What is this in dbw?
a
4000 dbw
b
14 dbw
c
23 dbw
d
26 dbw
35. A power transformer cannot
a
Increase the supply voltage.
b
Increase the supply current.
c
Increase the supply power.
d
Increase the impedance of the supply.
36. If a strong signal overloads the first stages of a receiver what control is best adjusted?
a
Notch Filter
b
R.F. Gain
c
A.F. Gain
d
Squelch
37. Fig shows a measuring device V. What would be the most suitable device for V
a
Electronic Voltmeter
b
D.C. Current Metre
c
10,000
W
per volt multimeter
d
Oscilloscope.
38. A pi - network utilises two capacitors and a coil what type of filter is it?
a
Low Pass Filter
b
High Pass Filter
c
Band Pass Filter
d
Band - stop Filter
39. A Public address sytem is experiencing breakthrough from a V.H.F. transmission. A suitable R.F. decoupling component is?
a
100 uF aluminium electrolytic capcitor .
b
1 nF Ceramic Capacitor.
c
10 mF Tantalum bead capacitor.
d
0.1 pf Silvered Mica capacitor.
40. Desensitising of a T.V. receiver is caused when?
a
The antenna is too high.
b
There are strong R.F. signals in close proximity.
c
The brightness of the T.V. is excessive
d
The rig is being operated out of band..
END