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IN ANSWERING QUESTIONS 3-17 AND
3-18, ASSUME THAT YOU HAVE
OBTAINED THE FOLLOWING RF POWER
MEASUREMENTS:
— INCIDENT POWER, 144 WATTS
— REFLECTED POWER, 1 WATT
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3-17. What is the approximate standing wave
ratio?
1. .85 to 1
2. 1 to 1
3. .08 to 1
4. 1.2 to 1
3-18. What total amount of power is absorbed
by the load?
1. 1 watt
2. 13 watts
3. 143 watts
4. 173 watts
3-19. To take power readings, you connect an
in-line rf power meter in what
configuration in the transmission line?
1. Series
2. Parallel
3. Series-parallel
4. Horizontal
3-20. Which of the following test instruments
produces a standard of measurement of
ac energy for testing electronics
equipment?
1. Power meter
2. Oscilloscope
3. Signal generator
4. Frequency counter
3-21. Signal generators are equipped with
attenuators for which of the following
purposes?
1. To regulate the output frequency
2. To regulate the output signal level
3. To determine the modulating
frequency
4. To set the level of internal modulation
3-22. Which of the following signal generators
should you select to test audio
equipment?
1. Af signal generator
2. Fm signal generator
3. Rf signal generator
4. Video signal generator
Figure 3A.—Af signal generator block diagram.
IN ANSWERING QUESTION 3-23, REFER
TO FIGURE 3A.
3-23. What section of the signal generator
regulates the output to the equipment
under test?
1. The amplifier
2. The attenuator
3. The oscillator
4. The output meter
