Smart Cities - Foundation Licence Practise Exam 1

1. All equipment connected to the mains supply should have:-

• a) an electricity authority approval label
• b) an extra fuse in the cable
• c) the leads uncoiled only as far as necessary
• d) a residual magnetic circuit Doppler for safety

2. If a 13.8 volt 10 Amp fuse continues to blow when replaced then:-

• a) a bigger fuse should be used
• b) a larger current rating fuse be used but not greater than 50% more than original fuse
• c) a fuse with next biggest current rating used
• d) help of an authorised repairer or other competent person should be sought

3. EMC problems can be minimised by:-

• a) placing the transmitting antenna as far as possible from the affected equipment
• b) increasing the transmitters modulation
• c) having an Advanced licence
• d) increasing transmitter power to swamp the interference

4. An electric fuse prevents:-

• a) the need for a residual current detector
• b) excessive current and possible fire or heat damage
• c) excessive transmitter power
• d) excessive voltage and reduces the possibility of shock

5. VHF and UHF transmissions are considered to require an obstacle free path between transmitter and receiver, this is called:-

• a) long path
• b) short path propagation
• c) ionospheric reflection
• d) line of sight propagation

6. The primary intent of Amateur radio is to facilitate:-

• a) prevent the need for using the public telephone system
• b) weather warnings to ships at sea
• c) a recreational hobby in radiocommunications
• d) large network of skilled radio listeners

7. Interference from an amateur station that disrupts a commercial radiocommunication service is called:-

• a) commercial interference
• b) harmful interference
• c) disruptive interference
• d) radiocommunications overload

8. If a radio amateur hears a distress call, on a non-amateur frequency, that is not acknowledged, the radio amateur:-

• a) if there is no response, respond and provide assistance using whatever means available, and using radio if equipment allows
• b) should continue to monitor and call other stations on a different band
• c) should urgently endevour to find anyone who can operate on the frequency of the distress
• d) may not transmit and contact the appropriate emergency authority

9. The diagram below that closely represents output of a sinewave oscillator is:-

• a) diagram A
• b) diagram B
• c) diagram C
• d) diagram D

10. Documentation that contains the latest statutory rules pertaining to the operation of an Amateur radio station is:-

• a) The Australian Radio Amateurs Band plan (ARABP)
• b) The Foundation Licence Manual
• c) The WIA callbook.
• d) The Radiocommunications Act 1992 and the Licence Conditions (Amateur Licence) Determination

11. As the licensed operator of your station it is your responsibility to:-

• a) prevent unauthorised operation of your station by any suitable means
• b) disconnect all power leads and antennas when leaving
• c) remove all the microphones from transmitting equipment
• d) prevent unauthorised operation of your station by locking the station doors and any other entry points

12. A radio call that includes PAN PAN means:-

• a) that the call is via the Internet
• b) a Distress situation
• c) that the call is for a specific country
• d) an Urgency situation

13. An AM transmitter is likely to over modulate if the:-

• a) microphone gain control is set too high
• b) RF gain control is set too high
• c) IF gain control is set too high
• d) LF gain control is set too high

14. If a battery is burnt or punctured, it may:-

• a) implode
• b) explode
• c) electrode
• d) polarise

15. If interference to other radio services is being generated by a Foundation station, the Foundation station licensee must:-

• a) cease all transmissions
• b) deny responsibility and keep operating
• c) surrender the station licence to the Australian Communications and Media Authority
• d) advise a full-call operator

16. An amateur transceiver that is being over modulated may result in:-

• a) interference to other services
• b) an increase in the feedline loss
• c) improved signal reports
• d) a reduction of power output

17. If the antenna elements are horizontal with respect to the ground the antenna would normally be considered to be:-

• a) cross polarised
• b) vertically polarised
• c) circular polarised
• d) horizontally polarised

18. Using the correct formula, calculate the power in a circuit when a 25 ohm resistance has 2 amperes of current going though it:-

• a) 50 watts
• b) 12.5 watts
• c) 156.25 watts
• d) 100 watts

19. Long distance radio communication in the range 3-30 MHz mostly relies on:-

• a) tropospheric refraction
• b) faraday bounce from the upper atmosphere
• c) tropospheric diffraction
• d) ionospheric refraction

20. If an amateur is causing harmful interference to other radiocommunications services, the amateur must:-

• a) put in a mains filter
• b) reduce power
• c) cease transmission immediately
• d) review the transceiver user manual

21. The purpose of the amateur radio service is primarily:-

• a) to avoid using the Internet for communication
• b) for self training in radiocommunications and technical investigation
• c) to save on telephone bills
• d) for the entertainment of other amateurs

22. EMC problems can be minimised by:-

• a) careful selection and location of antennas
• b) increasing transmitter power to swamp the interference
• c) having an Advanced licence
• d) only transmitting after midnight

23. Referring to the following diagram (waveforms), which diagram represents a normal FM signal:-

• a) diagram 2
• b) diagram 3
• c) diagram 1
• d) diagram 4

24. Referring to the following conversion chart, the approximate size of a half wavelength antenna to be used at 148 MHz is:-

• a) 70cm
• b) 1m
• c) 20 metres
• d) 160m

25. The most likely locations for filters used to reduce interference are in the:-

• a) antenna cabling and power supply
• b) modulator
• c) RF amplifier, oscillator and IF amplifier stages
• d) oscillator, buffer stages

Answers

• 1 - A
• 2 - D
• 3 - A
• 4 - B
• 5 - D
• 6 - C
• 7 - B
• 8 - A
• 9 - A
• 10 - D
• 11 - A
• 12 - D
• 13 - A
• 14 - B
• 15 - A
• 16 - A
• 17 - D
• 18 - D
• 19 - D
• 20 - C
• 21 - B
• 22 - A
• 23 - B
• 24 - B
• 25 - A