1. To generate pulsating DC voltage, what equipment is used? sweep generator signal generator oscillator none of the above
2. The interference brought about by the resultant signal from addition and subtraction of two or more signals is called intermodulation co-channel adjacent channel none of the above
3. Give the decimal equivalent of microfarad 0.001 F 0.000,000,001 F 0.000,001 F none of the above
4. What is the unit of impedance siemens ohm watt ampere
5. What is the unit of battery capacity ohms siemens ampere-hour none of the above
6. What is the unit of admittance siemens watt ohms inductance
7. What is the frequency comprising the extrahigh frequency (EHF) 30 MHz to 300 MHz 300 MHz to 3 GHz 3 GHz to 30 GHz 30 GHz to 300 GHz
8. The location of an interfering station can be pinpointed by using direction finders and utilizing triangulation stimulation intermodulation topography
9. What instrument is used for monitoring relative RF output during the transmitter and antenna adjustment frequency counter grid-dip meter frequency monitor none of the above
10. Signal generator is designed to produce range of frequencies in the AF and RF bands multiple power output multiple modulation of modes none of the above
11. No. 11 copper wire has a resistance of 0.28 ohms per meter. What is the resistance of 6 kms of this wire. 168 ohm 1.68 kiloohm 16.8 kiloohm none of the above
12. If the transmitter J output is not matched with the antenna, what must be the effect aside from reduced power? higher ERP radiation of harmonic frequencies low VSWR none of the above
13. Parallel conductive plates with dielectric in between are the component parts of resistor inductor transistor capacitor
14. What is used to connect a balanced line to an unbalanced line? balun coupler mixer switch
15. To effect maximum transfer of power from the final output stage of a transmitter to the antenna, there must be good impedance matching high VSWR high reflection coefficient characteristic impedance
16. Ten times the logarithm of the ratio of the output power to the input power is power gain decibel figure of merit quality factor
17. A resonant circuit has equal reactance equal resistance matched output none of the above
18. A voltage standing wave ratio of an antenna is measured with oscilloscope spectrum analyzer a SWR meter field strength meter
19. Four cells, each with an EMF of 1.4 and an internal resistance of 0.4 ohm, are connected in series, and a resistance of 4.0 ohms is connected across the group. How much current flows in the circuit? 0.4 A 0.5 A 1.0 A none of the above
20. What is the approximate magnitude of the impedance of a series RLC circuit at resonance? low high infinite none of the above 21. What is the unit of conductance siemens coulumb henry ohm 22. A voltmeter connected across a resistance reads 56 volts, and an ammeter connected in series with the resistance reads 0.4 ampere. What is the value of resistance? 14 ohms 140 ohms 22.4 ohms none of the above 23. The two tone test is used in SSB transmitter to simulate speech signal increase signal produce AC signal none of the above 24. What instrument is used to measure resistance with value of less than one ohm? multimeter ohmmeter RLC meter wheatstone bridge 25. The symbol "X" represents what quantity? inductance capacitance resistance reactance
Score = Correct answers: