technical problem which of the following procedures should you follow 1 Use

Technical problem which of the following procedures

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technical problem, which of the following procedures should you follow? 1. Use short cuts 2. Do random testing 3 . U s e a l og ic a l app r oa c h 4. Do a self-test of the equipment 3-20. Efficient operation of equipment is assured by which of the following actions? 1. Using tricks of the trade 2. Making quick repairs when problems occur 3. Observing system quality figures during preventive maintenance 4. Monitoring all system test points continuously 3-21. The standing-wave ratio (swr) in a transmission line is figured by using which of the following ratios? 1. Maximum voltage to maximum current 2. Maximum voltage to minimum voltage 3. Maximum current to maximum voltage 4. Minimum voltage to minimum current 3-22. Swr measurements are taken for which of the following purposes? 1. To determine the output frequency of the system under test 2. To determine the matching quality of the transmission line termination 3. To determine the coupling quality of the transmission line 4. To determine system output power 3-23. Couplers containing slots are used with rf probes to provide access to which of the following components? 1. Wavemeters 2 . U n i d i r ec t i ona l c oup le r s 3. Open transmission lines 4. Waveguides 3-24. 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 current 2. By dividing the average voltage by the peak voltage 3. By measuring the distance between a maximum voltage point and a maximum current point 4. By measuring the distance between alternate maximum or minimum current points along the line 3-25. A neon lamp moved parallel to a twowire parallel transmission line will glow at its brightest at which of the following points? 1. Maximum current points 2 . M a x im u m vo l t ag e po i n ts 3. Maximum voltage and current points 4. Maximum and minimum current points 3-26. A milliammeter moved parallel to a twowire transmission line will show its highest indication at which of the following points? 1. Maximum voltage points 2 . M a x im u m c u r r e n t po i n ts 3. Maximum current and voltage points
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4. Maximum and minimum voltage points 3-27. Which of the following devices may be used to measure swr without measuring the standing wave? 1 . B r i dg e 2. Rf probe 3. Neon lamps 4. Milliammeter 3-28. When using an RC bridge to measure swr, which of the following factor(s) must you consider as the applied frequency increases? 1. Skin effect 2. Stray inductance 3. Stray capacitance 4 . A l l o f t h e abov e 3-29. Before a newly constructed bridge can be calibrated, adjustments must be made for which of the following reasons? 1. To determine the frequency range of the bridge 2 . T o k ee p s t r a y e f ec ts a t a m i n i m u m 3. To adjust the rf voltage amplitude 4. To determine the characteristic impedance of the circuit 3-30. Which of the following formulas apply(ies) when measuring swr with a bridge?
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