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IN ANSWERING QUESTIONS 3-55
THROUGH 3-58, REFER TO THE
EMERGENCY LIFEBOAT TRANSMITTER
COVERED IN CHAPTER 5.
3-55. Search and rescue stations are divided
into groups that have distinct rescue
functions. Emergency lifeboat
transmissions are designed for reception
by a total of how many of these groups?
1.
5
2.
2
3.
3
4.
4
3-56. What are the operating frequencies of the
transmitter?
1. 8,364 kHz and 500 MHz
2. 500 MHz and 8,864 kHz
3. 500 kHz and 8,364 kHz
4. 500 kHz and 8,864 kHz
3-57. What is the primary source of power for
the transmitter?
1. External ac
2. Wind generator
3. Internal battery
4. Handcrank generator
3-58. When in the automatic mode of
operation, the transmitter transmits (a)
while changing frequency every (b)
seconds?
1. (a) The SOS distress signal
(b) 50
2. (a) Voice messages
(b) 20
3. (a) Voice messages
(b) 50
4. (a) The SOS distress signal
(b) 20
3-59. What is the maximum number of
channels available when you are using
the emergency portable transceiver
covered in chapter 5?
1.
5
2.
2
3.
3
4.
4
3-60. A laser operates in which of the
following areas of the light spectrum?
1. Red
2. Infrared
3. Ultraviolet
4. At or near visible light
3-61. The principle of the laser is much like
that of, which of the following electronic
components?
1. Hall generator
2. Reflex klystron
3. Traveling-wave-tube
4. Very high-Q cavity resonator
3-62. Which of the following components is a
close relative of the laser?
1. Thyristor
2. Photo transistor
3. Light emitting diode
4. Photovoltaic transducer
3-63. Laser transmissions during adverse
weather conditions experience which of
the following problems?
1. Absorption
2. Refraction
3. Reflection
4. Diffraction
