1) Which one of the following is not a true with respect to integrated modular avionics architecture? a. Reduces weight b. Easy maintenance c. Hardware independent software d. Increased life cycle
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2) The architecture where each component had its own sensors, processing and display is called as ________ a. Centralized architecture b. Federated architecture c. Disjoint or independent architecture d. Open system architecture
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3) Which one of the following is not true with respect with centralized architecture? a. Complex design b. Software can be written easily c. Requires long data buses d. Computers are in readily accessible bay
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4) Which type of avionic architecture was the first to use DIAS? a. Centralized architecture b. Pave pillar architecture c. Federated architecture d. Open system architecture
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5) A time shared multiplex highway is used in Federated avionic architecture. a. True b. False
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6) What advantage does the concept of IS2 add to the pave pace avionic architecture? a. Cost reduction b. Better performance c. Easy maintenance d. Software compatibility
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7) Which avionic architecture allows the existence of heavily armed single seat fighters with a variety of weapons? a. Federated architecture b. Pave pillar architecture c. Centralized architecture d. Distributed architecture
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8) What type of avionic architecture is used in the JSF? a. Pave pillar avionic architecture b. Advanced integrated avionic architecture c. Hierarchical avionic architecture d. Centralized avionic architecture
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9) What is the cost-effective solution for UAV displays? a. HMDs b. HUDs c. HDDs d. No display for UAV
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10) What is the failure probability for a UAV? a. 10/hour b. 10²/hour c. 10-³/hour d. 10-⁵/hour
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11) Which one of the following is false with respect to TRN? a. self contained b. Unjammable c. Low accuracy d. No external systems needed
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12) A flight management system is not necessary for simple UAVs. a. True b. False
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13) What is the altitude of HALE? a. 20,000ft b. 30,000ft c. 40,000ft d. 50,000ft
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14) What type of communication does the MQ-9 ‘reaper’ UCAV use? a. Satellite b. Radio c. Infrared d. Microwave
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15) In a radio controlled UAV, FHSS technology has more advantage than DSSS technology. a. True b. False
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16) Who discovered the radio waves? a. Heinrich Hertz b. Guglielmo Marconi c. Thomas Edison d. Alexander Bell
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17) What is the component that converts an electrical signal into a signal suitable for transmission in a given medium called? a. Transmitter b. Receiver c. Amplifier d. Duplexer
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18) What type of communication is used for underwater communication? a. Radio communication b. Microwave communication c. SONAR d. Satellite communication
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19) Earth be considered as a communication medium. a. True b. False
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20) A device that can both transmit and receive is called as? a. Transducer b. Duplexer c. Radar d. Transceivers
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21) Radio transmission is always the speed of light irrespective of the medium. a. True b. False
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22) What are the factors that affect signal propagation speed assuming no noise? a. Wavelength of the signal b. Frequency of the signal c. Strength of electrical and magnetic fields d. Permeability and permittivity of medium
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23) Which of the following is not an example of simplex communication? a. Radio broadcast b. TV broadcast c. UAV/drone control from ground d. Walkie talkie
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24) What type of communication is used in a commercial walkie talkie? a. Simplex b. Full duplex c. Half duplex d. Multiplex
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25) What type of communication is used between ATC and aircraft? a. Simplex b. Full duplex c. Half duplex d. Half simplex
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26) In what type of communication is time division multiplexing possible? a. Analog b. Digital c. Duplex d. Simplex
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27) The process of making the signal more compatible with the medium is called as? a. Modulation b. Transmission c. Encrypting d. Multiplexing
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28) The information signal is otherwise referred to as ___________ a. Digital signal b. Analog signal c. Baseband signal d. Broadband signal
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29) Voice signals cannot be directly transmitted by radio. a. True b. False
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30) In frequency modulation, carrier frequency is always greater than baseband frequency. a. True b. False
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31) Which one of the following is not a type of modulation? a. Frequency modulation b. Amplitude Modulation c. Pulse modulation d. Phase amplitude modulation
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32) In amplitude modulation, which of the following varies? a. Frequency of the carrier b. Frequency of the information signal c. Amplitude of the carrier wave d. Amplitude of the information signal
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33) You have 5 information signals and only one transmitter. What technique will help in transmitting all the 5 signals? a. Frequency modulation b. Multiplexing c. Amplification d. Amplitude modulation
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34) What type of multiplexing is used in mobile phones? a. Frequency division multiplexing b. Time division multiplexing c. Code division multiplexing d. Phase multiplexing
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35) Which one of the following is not true with respect to amplitude modulation? a. Less noise b. Longer range c. Lower bandwidth d. Less complex circuits
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36) What type of multiplexing is used in serial buses? a. Time division multiplexing b. Code division multiplexing c. Frequency division multiplexing d. Phase multiplexing
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37) Cps is the unit of what? a. Frequency b. Amplitude c. Phase d. Gain
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38) The range of electromagnetic signals encompassing all frequencies is referred to as? a. EM waves b. EM frequency c. EM spectrum d. EM radiation
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39) The distance that the wave travels in one cycle is called as? a. Displacement b. Wavelength c. Cycle length d. Cycle amplitude
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40) What is the wavelength of a signal with a frequency of 150Mhz? a. 10m b. 2m c. 5m d. 20m
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