Alarm and Warning Systems

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Author:
CVN68
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166791
Filename:
Alarm and Warning Systems
Updated:
2012-08-20 23:24:28
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Advancement
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Advancement
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  1. What is the purpose of alarm and warning systems?
    Alert personnel when dangerous or abnormal conditions occur
  2. What are the 5 types of audible signaling devices?
    • Buzzers
    • Sirens
    • Horns
    • Electronic signaling device
    • Bells
  3. Which audible signaling devices(s) can use 'AC' or 'DC?'
    Buzzers and bells
  4. What type of audible signaling device is used in quiet spaces?
    Buzzers
  5. What type of audible signaling device is used in loud spaces?
    Sirens
  6. What are the 3 tones produced by electronic signaling device?
    • Steady
    • Wailing
    • Pulsating
  7. What are visual signals?
    Any type of light of flag
  8. How many lines does a B-51 and B-52 have?
    • B-51 = 2
    • B-52 = 4
  9. What are the 3 conditions of the B-51 alarm panel?
    • Trouble
    • Normal
    • Alarm
  10. What color are the flags on the B-51 alarm panel during alarm condition?
    • Top = gray
    • Bottom = red
  11. What color are the flags on the B-51 alarm panel during trouble condition?
    • Top = yellow
    • Bottom - gray
  12. How does the dimmer control affect the alarm modules in the IC/SM alarm SWBD?
    DIM's all lights except flashing light
  13. What tones are produced by the tone generator in the IC/SM alarm SWBD?
    • Wailing
    • Steady
    • Pulsating
  14. What is the function of the battery in the IC/SM alarm SWBD?
    Provides power to the tone generator for the pulsating tone upon loss of power
  15. What is the Standby mode on the IC/SM alarm SWBD used for?
    Acknowledging an alarm
  16. What is the cut-out mode on the IC/SM alarm used for?
    Maintenance
  17. What condition on an IC/SM is indicated by the lower lamp flashing, and the wailing tone is sounding?
    Standby alarm cleared
  18. What audible and visual signals would you receive for an alarm condition on an IC/S alarm SWBD?
    Bell and red bottom flag
  19. What audible and visual signals would you receive for a trouble condition on an IC/S alarm SWBD?
    Top flag yellow and buzzer
  20. What is the purpose of an alarm initiating device?
    • Senses a deviation and closes contacts
    • Energizes a signaling device
  21. What does an alarm initiating device consist of?
    Actuating mechanism, 7k ohm 5w resistor, normally open contacts
  22. What are the 3 temperature settings of the IC/J mercury thermostats?
    • 105 degrees
    • 125 degrees
    • 150 degrees
  23. What 2 CKTs make up the ships control?
    • CKT MB
    • CKT M
  24. What is the purpose of the propeller revolution order system?
    Transmit shaft RPM orders
  25. What is the purpose of the engine order system?
    Transmit shaft direction orders and speed in broad ranges
  26. What 3 CKTs make up the steering control console?
    • CKT N
    • CKT L
    • CKT LB
  27. What CKT transmits steering orders from the pilot house to the steering gear room?
    CKT L
  28. Where is the transmitter for the rudder angle indicating system located?
    At the rudder head
  29. What is the purpose of the steering emergency alarm?
    Alerts steering gear RM personnel of steering casualty
  30. What CKT transmits the angular position of the rudder from the rudder head to various locations throughout the ship?
    CKT N
  31. What is the CKT designation for the magazine high temperature alarm?
    CKT F
  32. What is the CKT designation for the magazine flooding alarm?
    CKT FD
  33. What alarm initiating devices can be found in a magazine?
    • IC/J switches, water switches
    • Liquid level float switches
  34. The _____ is a temperature switch, and the _____ is a pressure switch.
    • IC/N = temerature switch
    • IC/L = pressure switch
  35. What is the CKT designation for the lubricating oil low pressure alarm on propulsion machinery?
    CKT 1EC
  36. What is the CKT designation for the generator high temperature alarm?
    CKT 1ED
  37. What is the CKT designation for the rudder angle indicated system?
    CKT N
  38. What is the CKT designation for the rudder angle order system?
    CKT L
  39. What is the CKT designation for the steering emergency alarm?
    CKT LB
  40. What is the CKT designation for the propeller revolution order system?
    CKT M
  41. What is the CKT designation for the engine order system?
    CKT MB
  42. Which type of detector is in the tank level indicating system indicates continuously?
    Transmitter
  43. What is the purpose of the tank level indicating system?
    Provide an accurate measure of liquid in a tank
  44. What are the two types of wind indicating systems?
    • Type F
    • Type B
  45. What devices does the actual sensing of impurities in freshwater?
    Salinity cell
  46. What is the purpose of the remote control unit (dummy log)?
    • Used when impractical to lower the rodmeter
    • Provides a signal for maintenance or when the rodmeter is damaged
  47. What are the two types of rodmeters?
    • Retractable
    • Fixed
  48. Where is the transmitter for the porpeller revolution indicating system located?
    On the shaft
  49. What is the CKT designation for the propeller revolution indicating system?
    CKT K
  50. What are the two types of propeller revolution indicating systems?
    • Synchro
    • Magneto Voltmeter
  51. What does the red ligh indicate, on the indicator-transmitter of the propeller revolution indicating system?
    Reverse direction
  52. What is the CKT designation for the wind speed and direction indicating system?
    CKT HD/HE
  53. What is the CKT designation for the tank level indicating system?
    CKT TK
  54. What does the underwater log indicator-transmitter display?
    • Total nautical miles traveled
    • Relative ships speed
  55. What principle does the rodmeter operate under?
    Electromagnetic induction
  56. How many propeller revolution indicating systems are there per shaft?
    1
  57. What is the purpose of the propeller revolution indicating system?
    • Indicates instantaneous shaft RPMs
    • Indicates total shft RPMs and direction or rotation
  58. What type of contacts does the valve position indicating system use?
    Normally closed
  59. What is the purpose of the wind indicating system?
    Indicate relative speed and direction
  60. What are the two types of detectors in the tank level indicating system?
    • Level link
    • Transmitter
  61. What type of wind indicating system uses 60Hz and 400Hz power?
    Type F
  62. What type of wind indicating system uses 60Hz power only?
    Type B
  63. What in the propeller revolution indicating system converts shaft running speed in synchro signals?
    Indicator-transmitter
  64. What ranges does the HD/HE indicator indicate?
    0 - 360 degrees, 0 - 100 knots relative
  65. What is the purpose of the sea valve?
    Provides water right support for the rodmeter
  66. What is the purpose of the rodmeter?
    Provides a small electrical signal proportional to ships speed
  67. What is the CKT designation of the valve position indicating system?
    CKT VS
  68. What CKT provides personnel at remote locations, the position of certain valves?
    CKT VS
  69. What type of contacts does the valve position indicating system use?
    Normally closed
  70. What is the CKT designation for the salinity indicating system?
    CKT SB
  71. What is the purpose of the salinity indicating system?
    Indicate the amount of impurities in fresh water
  72. What type coefficient is the thermistor in the salinity cell?
    Negative
  73. What happens to conductivity if impurities in freshwater increase?
    Increase
  74. What happens to conductivity in impurities in freashwater decrease?
    Decrease
  75. What happens to the dump valve when impurities reach .065 EPM?
    Deenergizes and redirects water to the bilge or overboard
  76. What does EPM stand for?
    Equivalent parts per million
  77. What is the purpose of the tank level indicating system?
    Provide an accurate measure of liquid in a tank
  78. What is the CKT designation for the tank level indicating system?
    CKT TK
  79. What are the two types of directors in the tank level indicating system?
    • Level link
    • Transmitter
  80. Which type of detector in the tank level indicating system indicates in increments?
    Level link
  81. Which type of detector in the tank level indicating system indicates continuously?
    Transmitter

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