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What are the four receiver functions?
Reception
Selection
Detection
Reproduction
What are the four receiver characteristics?
Sensitivity
Noise
Selectivity
Fidelity
What is heterodyning?
The principle of beating two frequencies together to get an intermediate frequency
Used to reduce interface, it widens the interference pulse.
Filter
What are the differences between Marconi and Hertz antennas?
Marconi
: Quarter Wave & Grounded ( can be installed on sand)
Hertz
: Half Wave
What is a main bang?
The area of the radar image closest to the vessel which can not be seen due to the pulse width.
What locations can an antenna safety disconnect switch be installed?
Below antenna platform, on or near the base of the mast, or in pilothouse.
What is scintillation?
A target maneuvers and RF bounces off different parts of the target which possibly causes random reflectivity and tracking errors.
Define Doppler effect.
From a stationary point the radar strikes a moving object. The result is a change in frequency of the return RF.
What are the components of the AN/SPS-50?
Processor Unit (RPU-013)
Monitor Unit (MU-201CR/MU-231CR)
Control Unit (RCU-014)
Antenna Unit
What is the working load limit for climbing safety gear?
310 lbs
How tall must a tower be before it is designated a tall tower?
300 ft
CPR begun within 4 minutes revives _ out of 10 people.
7
What are the three main hazards of working aloft?
Falling
EMR
Burns
When climbing a safety must be within ___ ft of the main climber.
150
What is the effective range of 15 lb CO2 extinguisher?
4-6 ft
What is the primary cause of casualties?
Human failure
What are the seven steps of ORM?
Define Mission
Identify Hazards
Assess Risk
Identify Options
Evaluate Risk v Gain
Execute Decisions
Monitor Situation
For hearing protection what is the dB range for single, double, and impact (for single)?
S
: 85
D
: 105
I
: 140
What are the symptoms of electric shock?
Unconsciousness
Body stiff/rigid
Face pale or bluish
Pulse weak or absent
Burns
Who was the keeper of Lime Rock Lighthouse?
Ida Lewis
Who was the author of Roots and the autobiography of Malcolm X?
Alex P. Haley
What cutter made the first naval capture of WWII?
Northland
What were the original 10 Revenue Cutters?
General Green
Argus
Scammel
Massachusetts
Virginia
South Carolina
Eagle
Vigilant
Active
Diligence
When was the rank of CPO created?
1893
Author
pmuir88
ID
339973
Card Set
Description
Updated
2018-05-02T15:18:58Z
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