Brunei Darussalam: Trivia Quiz On Amateur Radio!
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- 1.In superhetrodyne receiver, which stage provide the most gain and selectivity?
- A.
Mixer
- B.
R.F. Amplifiers
- C.
I.F. Amplifiers
- D.
A.F. Amplifiers
- 2.Which of the following is not an amateur band
- A.
51.20Mhz
- B.
144.15Mhz
- C.
432.29Mhz
- D.
1370.77Mhz
- 3.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 then the input
- D.
Be an amplified replica of the input waveform
- 4.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
- 5.In which waveband is there a low powder segment?
- A.
40 m
- B.
30 m
- C.
160 m
- D.
2 m
- 6.A licensed amateur may use his/her 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
- 7.The licensee shall test his transmissions for radiation of spurious emission and keep a record of these tests?
- A.
With an oscilloscope
- B.
Once a month
- C.
Every six month
- D.
From time to time
- 8.A common cause of fading in the H.F. bands is...
- A.
Variation in receiver sensitivity
- B.
Clouds passing overhead
- C.
Movement of the antenna
- D.
Summation of signals arriving from different paths
- 9.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 linear power amplifier
- D.
By switching to Upper Sideband
- 10.Band planning
- A.
Minimize Interference between different modes
- B.
Is a license condition which must be compiled with
- C.
Is only applicable in the 2 meter band
- D.
Is only applicable for SSTV and digital modes
- 11.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 color
- C.
Function and position known to all household members
- D.
Must be mounted out of the reach of children
- 12.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
- 13.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
- 14.If a strong 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
- 15.A pi-network utilizes 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
- 16.A Public address system is experiencing breakthrough from a V.H.F transmission. A suitable R.F decoupling component is?
- A.
100 uF aluminium electrolytic capacitor
- B.
NF Ceramic Capacitor
- C.
10 mF Tantalum bead capacitor
- D.
0.1 pf Silvered Mica capacitor
- 17.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 TV is excessive
- D.
The rig is being operated out of band
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