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3-14. Most oscilloscopes are limited in their
frequency-measuring capability to which
of the following upper frequency limits?
1. 50 kHz
2. 100 kHz
3. 500 kHz
4. 100 MHz
3-15. Which of the following indications
should you observe when a frequency
meter is adjusted to the resonant
frequency of the signal under test?
1. An audible beat-frequency signal
2. A pronounced dip in output at
resonance
3. A pronounced increase in output
power
4. A bright glow of the frequency meter
glow lamp
3-16. What is the purpose of the time interval
measurement of a frequency counter?
1. It indicates the wave period
2. It indicates the time between two
events
3. It indicates the time between two
functions of an event
4. Both 2 and 3 above
3-17. What are the three basic categories of
wavemeters?
1. Resonant, active, and passive
2. Absorption, active, and passive
3. Reaction, resonant, and absorption
4. Absorption, reaction, and
transmission
3-18. In becoming a qualified technician,
which of the following goals should you
seek to achieve?
1. To be able to repair a specific piece of
equipment
2. To be able to isolate faults in an entire
system
3. To demonstrate a basic knowledge of
system interconnections
4. To demonstrate minimum
maintenance ability on a piece of
equipment
3-19. When attempting to correct a technical
problem, which of the following
procedures should you follow?
1. Use short cuts
2. Do random testing
3. Use a logical approach
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
