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technical problem, which of the followingprocedures should you follow?1. Use short cuts2. Do random testing3.Usealogicalapproach4. Do a self-test of the equipment3-20. Efficient operation of equipment is assured by which of the following actions?1. Using tricks of the trade2. Making quick repairs when problems occur3. Observing system quality figures during preventive maintenance4. Monitoring all system test points continuously3-21. The standing-wave ratio (swr) in a transmission line is figured by using which of the following ratios?1. Maximum voltage to maximum current2. Maximum voltage to minimum voltage3. Maximum current to maximum voltage4. Minimum voltage to minimum current3-22. Swr measurements are taken for which of the following purposes?1. To determine the output frequency of the system under test2. To determine the matching quality of the transmission line termination3. To determine the coupling quality of the transmission line4. To determine system output power3-23. Couplers containing slots are used with rf probes to provide access to which of the following components?1. Wavemeters2.Unidirectionalcouplers3. Open transmission lines4. Waveguides3-24. The wavelength of a standing wave is measured on a short-circuited, terminated line using a magnetic or electric probe in which of the following ways?1. By multiplying the average current by the peak current2. By dividing the average voltage by the peak voltage3. By measuring the distance between a maximum voltage point and amaximum current point4. By measuring the distance between alternate maximum or minimum current points along the line3-25. A neon lamp moved parallel to a twowire parallel transmission line will glowat its brightest at which of the following points?1. Maximum current points2.Maximumvoltagepoints3. Maximum voltage and current points4. Maximum and minimum current points3-26. A milliammeter moved parallel to a twowiretransmission line will show its highest indication at which of the following points?1. Maximum voltage points2.Maximumcurrentpoints3. Maximum current and voltage points
4. Maximum and minimum voltagepoints3-27. Which of the following devices may beused to measure swr without measuringthe standing wave?1.Bridge2. Rf probe3. Neon lamps4. Milliammeter3-28. When using an RC bridge to measureswr, which of the following factor(s)must you consider as the appliedfrequency increases?1. Skin effect2. Stray inductance3. Stray capacitance4.Allof theabove3-29. Before a newly constructed bridge can becalibrated, adjustments must be made for which of the following reasons?1. To determine the frequency range ofthe bridge2.Tokeepstrayefectsataminimum3. To adjust the rf voltage amplitude4. To determine the characteristicimpedance of the circuit3-30. Which of the following formulasapply(ies) when measuring swr with abridge?