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Questions Flashcards

1
Q

Underwater, objects appear to be % larger

A

30

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2
Q

In what order does color start filtering out in water

A

Red, Orange, Yellow, Green, Blue

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3
Q

What are thermoclines

A

Different layers of water at different temperatures

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4
Q

How fast does sound travel in the water

A

4,921 feet per second

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5
Q

What is Conduction

A

Conduction is the transmission of heat by direct contact. Because water is an excellent heat conductor, an unprotected diver can lose a great deal of body heat to the surrounding water by direct conduction

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6
Q

What is Convection

A

Convection is the transfer of heat by the movement of heated fluids

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7
Q

What is Radiation

A

Radiation is heat transmission by electromagnetic waves of energy. Every warm object gives off waves of electromagnetic energy, which is absorbed by cool objects. Heat from the sun, electric heaters, and fireplaces is primarily radiant heat

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8
Q

A diver will start to become chilled when the water temperature falls below a seemingly comfortable

A

70°F

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9
Q

GFIs are required when line voltage is above

A

7.5 VAC or 30 VDC

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10
Q

GFIs shall be capable of tripping within ___ milliseconds after detecting a maximum leakage current of ___ milliamps.

A

20 milliseconds, 30 milliamps

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11
Q

Deploying Standby Diver as a working diver:

A
  • Surface-supplied, no decompression dive 60 fsw or more
  • Same job/location
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12
Q

50 Foot rule

A

Diving within 50 feet of an active sea suction (located on the same side of the keel) that is maintaining a suction greater than 50 gpm or more, is not authorized unless considered as an emergency repair and is authorized by the CO of both the RA and tended vessel.

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13
Q

Diving on ships in a nest:

A

-Outboard ship must fly code alpha
-All suctions within the 50’ path of divers and work item must be tagged out on both ships
-Both ships pass the word “There are divers working

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14
Q

Diving within active ICCP:

A

-The appropriate zone of the ships ICCP system must be secured, tagged out, and confirmed secured before divers may work on an ICCP device
-Divers working within 15 feet of an active system must wear a full dry suit, unisuit, or wet suit with hood and gloves.

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15
Q

Diving with active sonar:

A

-Wet- Suit Hooded - Start 600 yds. and move in to diver comfort
-Wet- Suit Unhooded - Start 1000 yds. and move in to diver comfort
-Helmeted - Start 3000 yds. and move in to diver comfort

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16
Q

Diving at night:

A

-Notify port ops due to sonar testing
-Ships light should be Red-White-Red

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17
Q

What is ship class EMORY S. LAND designation and type

A

Designation - AS
Type - Submarine Tender

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18
Q

UWSH - what Chapter is Index

A

CH 1

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19
Q

UWSH - what Chapter is General Info

A

CH 2

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20
Q

UWSH - what Chapter is Propellers

A

CH 3

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21
Q

UWSH - what Chapter is Auxillary Propulsion unit

A

CH 4

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22
Q

UWSH - what Chapter is Masker Emitter Belts

A

CH 5

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23
Q

UWSH - what Chapter is Submarine Sonar Systems

A

CH 6

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24
Q

UWSH - what Chapter is Non-Destruction testing

A

CH 7

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25
Q

UWSH - what Chapter is Secondary Propulsion Motor

A

CH 8

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26
Q

UWSH - what Chapter is Sonar Rubber Domes

A

CH 9

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27
Q

UWSH - what Chapter is Diver Tools

A

CH 10

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28
Q

UWSH - what Chapter is Wet/Dry Chamber Welding

A

CH 11

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29
Q

UWSH - what Chapter is Controllable Pitch Propellers

A

CH 12

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30
Q

UWSH - what Chapter is Shaft Laminations

A

Ch 13

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31
Q

UWSH - what Chapter is CSA PODS

A

CH 14

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32
Q

UWSH - what Chapter is Protection Sleeves

A

CH 15

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33
Q

UWSH - what Chapter is Cofferdams

A

CH 16

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34
Q

UWSH - what Chapter is Inspections

A

CH 17

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35
Q

UWSH - what Chapter is Propulsion bearing

A

CH 18

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36
Q

UWSH - what Chapter is Cathodic Protection

A

CH 19

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37
Q

UWSH - what Chapter is Painting/ Fairing Compounds

A

CH 20

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38
Q

UWSH - what Chapter is FIN Stabilizer

A

CH 24

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39
Q

UWSH - what Chapter is Pollution Prevention

A

CH 28

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40
Q

UWSH - what Chapter is Submarine Procedures

A

CH 29

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41
Q

Types of Propellers

A

-Solid
-Built Up
-CPP

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42
Q

Propellers - Pilgrim Nut

A

Forces hydraulic fluid into nitrile tire pushing ring outward against backing plate

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43
Q

Propellers - Charleston Gear

A

Hydraulic ram pushes against strongback seated on prop. nut

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44
Q

Cosmoline

A

MIL-C-11796

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45
Q

Hydrolube

A

MIL-L-21260

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46
Q

Masker Emmitter Belt - continuous length of

A

90/10 CuNi pipe
3/64” holes

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47
Q

Cleaning Masker Emmitter belt with only

A

-Butterworth Zero thrust hydroblast gun
-Cannot use more than 85 min/24hrs due to noise.
- Start from waterline and move to the keel

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48
Q

What type of rubber are sonar domes made of

A

NOFoul® rubber

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49
Q

Sonar dome inspection - Water temperature less the or equal to

A

60F and or high turbidity you need a cofferdam for repairs

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50
Q

Hytorq Bolts

A

Hex head, Hex key, 12 point

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51
Q

Morgrip bolts

A

Utilizes bolt elongation to set torque

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52
Q

Plugs - Wooden DC

A

Max 3-4” protrusion

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53
Q

Flat Patch

A

A single plate of metal or wood

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54
Q

Box patch

A

A flat patch with sides with open side facing the hull

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55
Q

Beaver Dam

A

Series of wooden wedges, used on CG stbd side stern tube.

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56
Q

Fat rope

A

Large bintsuke wrapped line

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57
Q

Material for Cofferdam on ships

A

Min. 1/4” 5000 series Aluminum, 1/4” mild steel, 1” Marine Grade plywood

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58
Q

Material for Cofferdam on Subs

A

Min. 1/8” 5000 series Aluminum, 16 gauge stainless steel

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59
Q

Appendix C for cofferdams

A

Patch and Plugs inspection

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60
Q

Appendix D for cofferdams

A

Patch and Plug installation

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61
Q

Appendix G for cofferdams

A

Ships responsibilities for patch installations

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62
Q

Bintsuke Recipe

A

——————–Summer———Winter———
Cooking oil. 5 gal. 5 gal
Rosin (pitch). 25 lb 30 lb
Beeswax. 25 lb. 25 lb
Tallow 2 lb 3 lb
Parafin 2 lb 2 lb
Cheesecloth 6ft x 1 ft strips

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63
Q

Non Invasive Inspections

A

Requires no disassembly

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64
Q

Invasive Inspections

A

Requires some disassembly

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65
Q

Level 1 Inspections

A

Non-Invasive of entire hull appendages

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66
Q

Level 2 Inspections

A

System specific, Non Invasive, Deficiency discovered during level 1 or problem reported by ship

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67
Q

Level 3 Inspections

A

System Specific, Invasive

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68
Q

Propulsion Bearings Lubrications

A

Boundary - Full Contact
Mixed Film - Speed increases creating film
Hydrodynamic - Seawater drawn in, full separation of surfaces

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69
Q

Fairwater measured at

A

3, 6, 9, 12 o’clock positions

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70
Q

Propulsion bearings clean out with

A

Hydro lance

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71
Q

Cathodic Protection - Divers working within ___ feet active ICCP wear full _____

A

15’
Wet/ Dry, Hood, Gloves, Booties, Comms

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72
Q

Anode

A

Platinum-coated tantalum wire rod woven through insulating glass reinforced polyester holder 2,4,8’ lengths, installed in sets of 2, equal in length

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73
Q

Reference Cell

A

Electrode constructed of a silver mesh screen treated with silver chloride mounted with a 9” diameter dome. Installed between anodes powered by same controller supply

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74
Q

Stuffing Tube

A

Through hull watertight electrical connection

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75
Q

Di-electric Shield

A

-High solids epoxy coating around each anode
- Material - Capastic, only dry application
- Hycote 461 for wet application authorized

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76
Q

Hycote ___ is the only NAVSEA approved product for underwater paintings
Hycote ___ is the inly NAVSEA approved underwater fairing compound

A

151, 461

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77
Q

WHAT IS THE PURPOSE OF THE STATIC LOAD TEST?

A

HOLD 200% of ITS MAX RATED LOAD

78
Q

PROOF PRESSURE IS DESCRIBED BY WHAT DEFINITION?

A

AT LEAST 1.5 TIMES THE MAX OPERATING PRESSURE

79
Q

BASIC SUBSYSTEM DIAGRAMS THAT OUTLINE STRUCTURES, SUBSYSTEMS, AND EQUIPMENT ARE CONTAINED IN WHAT RECORD?

A

CERTIFICATION SCOPE NOTEBOOK

80
Q

WHAT TEST IS REQUIRED BY THE SCA PRIOR TO A MANNED DEMONSTRATION?

A

UNMANNED OPERATIONAL

81
Q

ALL ITEMS ARE INCLUDED IN PSOB EXCEPT?

A

FAILURE ANALYSIS REPORTS

82
Q

SHOREBASED HYPERBARIC SYSTEMS REQUIRE OVERHAUL AT WHAT MINIMUM INTERVAL?

A

EVERY 10 YEARS

83
Q

WHAT DOCUMENT DEFINES SCOPE OF WORK AND PROVIDES PRODUCTION PERSONNEL WITH STEP-BY-STEP INSTRUCTIONS ON HOW THE WORK SHOULD BE ACCOMPLISHED?

A

CWP

84
Q

WHICH DOCUMENT IS PREPARED BY THE APPLICANT FOR USE IN CERTIFYING A HYPERBARIC SYSTEM?

A

PSOB

85
Q

DOCUMENT SUBMITTED FOR SAFETY TRENDS AND ANALYZING MISHAPS

A

HAZREP

86
Q

WHO IS FAILURE ANALYSIS REPORT SUBMITTED TO

A

CONFIGURATION MANAGER

87
Q

HOW LONG CAN YOU EXTEND YOUR CERT DATE

A

90 DAYS

88
Q

PURPOSE OF A REC

A

MAINTAIN SYSTEM “AS CERTIFIED” (DON’T FALL FOR “AS BUILT AS CERTIFIED”)

89
Q

WHICH OF THE FOLLOWING ITEMS DOES NOT REQUIRE A REC UPON REMOVAL

A

FLASK CHANGE OUT

90
Q

ON THE MIP, WHEN AN ASTERISK FOLLOWS A PERIODICITY CODE WHAT INFORMATION IS BEING INDICATED?

A

SAFETY OF SHIP ITEM

91
Q

ON AN MRC YOU DISCOVER THAT PERFORMING THE CHECK AS WRITTEN CREATES AN UNSAFE CONDITION TO THE MAINTENANCE PERSON. YOU SHOULD SUBMIT A?

A

URGENT FBR

92
Q

WHAT MAINTENANCE SHOULD BE PERFORMED TO RE-ACTIVATE A DLSS COMPRESSOR THAT HAS BEEN IN IEM CAT II?

A

START UPS (SU)

93
Q

SHIP SPECIFIC TAGOUT REQUIREMENTS ARE CONTAINED IN WHAT MANUAL?

A

SHIPS ORGANIZATIONAL MANUAL (SORM)

94
Q

WHAT COA SHOULD BE TAKEN WHEN MEMBERS IN THE 1ST CLASS DIVE PROGRAM ARE INVOLUTARILY REMOVED?

A

THEY WILL RETURN AT THE END OF THEIR NEXT DUTY ASSIGNMENT

95
Q

DIVER REQUALIFICATIONS ARE ENTERED IN THEIR SERVICE RECORD IN WHAT NAVPERS FORM?

A

/613 (PG 13)

96
Q

A DIVERS QUALS HAVE LAPSED FOR MORE THAN 1 YEAR BUT LESS THAN 3 YEARS. TO REQUAL WHAT ACTIONS SHOULD THEY TAKE?

A

PASS PST, CO’s APPROVAL

97
Q

WHEN A DIVE CANDIDATE ADVANCES TO E-6 DURING DIVE TRAINING?

A

DISENROLLMENT FROM THE PROGRAM

98
Q

WHAT TIME WINDOW MUST A DIVE CANDIDATE PERFORM THE FINAL PST PRIOR TO SHIPPING OUT?

A

WITHIN 30 DAYS OF CHECK IN

99
Q

WHICH PERSONNEL MAY BE PLACED ON SUPERVISORY STATUS DUE TO INABILITY TO MEET PHYSICAL STANDARDS

A

MDV

100
Q

REQUIREMENTS TO STAND THE DIVING OFFICER OF THE COMMAND

A

MUST BE DESIGNATED IN WRITING BY THE CO

101
Q

WHEN A MK16 DIVER SIGNALS IN-WATER DCS, WHAT ACTION SHOULD THE SUP TAKE?

A

DEPLOY THE STANDBY

102
Q

WHAT RISK FACTOR INCREASES WHEN DIVING MOD 1 VS MOD 0?

A

CNS O2 TOX

103
Q

MOD 1 SINGLE UNTENDED DIVER CAN BE AUTHORIZED BY?

A

EOD DIVING OFFICER

104
Q

WHEN IS THE MK16 PRIMARY BATTERY LVL CONSIDERED UNSAFE TO PERFORM A DIVE?

A

5.2 VOLTS

105
Q

MK16 MAX 02 ATA

A

1.9 ATA

106
Q

PROCEDURE FOR ASYMPTOMATIC 1.3 pp02, MISSED DECOMPRESSION STOP SHALLOWER THAN 33

A

DIVER MUST MANUALLY ADD O2 TO MAINTAIN 1.3 ATA, OR ELECT TO DESCEND PAST 33FT NTE 40 TO RE-TRANSITION UBA BEFORE RETURNING TO THE MISSED STOP.

107
Q

TENDING LINE COLORED MARKINGS

A

REDS ARE 50 FT INCREMENTS, BLACK/YELLOWS ARE 10 FT INCREMENTS

108
Q

WHAT TEMPERATURE REQUIRES A CANISTER INSULATOR FOR MK 25 CO2 SCRUBBER CANISTER?

A

40 DEGREES

109
Q

WHAT IS PART OF A MK25 RIG JACKET?

A

RECs, FARs, MAINTENANCE HISTORY

110
Q

WHAT RANGE DOES THE MK25 HP OXYGEN REDUCER MAINTAIN?

A

55-75 PSI

111
Q

HOW TO IDENTIFY MK25 EXHALATION HOSE

A

LONGER IN LENGTH AND RED MARK

112
Q

WHEN A REC IS REQUIRED FOR MK25

A

WHEN ENTERING THE PNEUMATIC SYSTEM

113
Q

STEEL TUBULAR ELECTRODES CAN CUT WHAT THICKNESS?

A

2 INCHES

114
Q

KERIE CABLE SIZES

A

6, 9, 12

115
Q

TYPES OF STAVE BEARING LUBRICATION

A

BOUNDARY, MIXED-FILM, HYDRODYNAMIC

116
Q

LEVEL 2 INSPECTION

A

SYSTEM SPECIFIC, NON-INVASIVE. REQUIRES NO DISASSEMBLY OF COMPONENTS

117
Q

MAX HULL PAINT LIFE AFTER PERIODIC CLEANING

A

7 YEARS

118
Q

TORPEDO TUBE GAP

A

1/4” - 1/2”

119
Q

SPM GAP

A

1/8” – 1/4”

120
Q

FOULING RATING

A

0-100, 10 PT INCREMENTS

121
Q

FULL HULL CLEANING REQUIRED WHEN OVER 10 % OF THE HULL HAS WHAT FOULING RATING?

A

FR50

122
Q

HOW MUCH FUEL EFFICIENCY/SAVINGS BENEFIT OF CLEANING AN ENTIRE HULL

A

50%

123
Q

WHAT IS AN INTERIM CLEANING

A

RUNNING GEAR

124
Q

NSTM TO ENTER A BALLAST TANK

A

NSTM 074 GAS FREE ENGINEERING

125
Q

CPP BLADE NUMBERING

A

1A-2B-3C-4D-5E

126
Q

WHAT FORM REQUIRED FOR AN RFI PROPELLER

A

NAVSEA 9245/1

127
Q

CPP BLADE CHANGE PROPELLER POSITION

A

12 O’CLOCK

128
Q

WHAT PERCENTAGE OF ANODE DETERIORATION REQUIRES REPLACEMENT

A

50%

129
Q

WHEN PAINTING GREATER THAN 200 SQ FEET WHAT PAINT MACHINE IS USED

A

LPAM

130
Q

DP CLASS SHIPS

A

IMO CLASS 2 OR 3

131
Q

PREFERRED CLASS SHIP FOR FIREFIGHTING

A

T-ARS

132
Q

SAT DIVING LIVING QUARTERS

A

DECK DECOMPRESSION CHAMBER (DDC)

133
Q

WHOS APPROVAL REQUIRED FOR DIVING ABOVE 99 DEGREES

A

NAVSEA

134
Q

REQUIRED APPROVAL FOR PLANNED DECOMPRESSION DIVES

A

CO OR OIC

135
Q

NON DIVING RELATED CHAMBER TREATMENT APPROVAL REQUIRED

A

BUMED

136
Q

THE THREE INDEPENDENT ACTIONS REQUIRED FOR AN ELECTRICAL SHOCK

A

GFI MUST FAIL, THE ELECTRICAL EQUIPMENT MUST EXPERIENCE A GROUND FAULT, DIVER MUST PLACE THEMSELVES BETWEEN FAULT AND GROUND.

137
Q

WHAT CAN STRAIN RELIEFS BE MADE OF

A

CABLE, CHAIN, 21-THREAD, OR 3/8” NYLON. TIE WRAPS, TAPE, OR MARLIN NOT AUTHORIZED FOR MARRYING PURPOSES.

138
Q

OTPA

A

RELIEVES @ 3300 AND RESETS @ 3000 ± 50. PILOT SHUTS DOWN @ 3250

139
Q

CIVILIAN DIVER MAX DEPTH SCUBA/MIXED GAS

A

130/220

140
Q

TREATMENT TABLE 9 EXTENSIONS

A

MAX OF 3 – 4 HOURS

141
Q

TT9 DEPTH

A

45 FSW

142
Q

TT9 ASCENT RATE

A

20 FPM

143
Q

TT6/6A EXTENSIONS

A

UP TO TWO 25MIN PERIODS @60FSW, OR TWO 75MIN PERIODS @30 OR BOTH

144
Q

NITROGEN NARCOSIS ATAs

A

4

145
Q

GREATEST CAUSE OF MISHAP

A

FATIGUE

146
Q

REQUIREMENTS FOR HOLDING DIVING OFFICER TITLE

A

THIS WAS A TRICK-ME QUESTION, I DON’T REMEMBER EXACT ANSWER BUT THE CORRECT ANSWER ALLOWS MDV TO ASSUME DIVE-O TITLE

147
Q

SHALLOW WATER DIVE TABLE APPENDIX 2A RANGE

A

30 TO 50 FSW RANGE IN 1 FT INCREMENTS

148
Q

NEUROLOGICAL ASSESSMENT- WHAT 6 THINGS

A
  1. MENTAL STATUS
  2. COORDINATION
  3. MOTOR
    4.CRANIAL NERVES
  4. SENSORY
  5. DEEP TENDON REFLEXES
149
Q

OLFACTORY NERVE

A

PROVIDES SENSE OF SMELL

150
Q

OPTIC NERVE

A

PROVIDES EYESIGHT

151
Q

OCULOMOTOR, TROCHLEAR, ABDUCENS NERVES

A

THESE THREE NERVES CONTROL EYE MOVEMENTS

152
Q

TRIGEMINAL NERVE

A

THE TRIGEMINAL NERVE GOVERNS SENSATION OF THE FOREHEAD AND FACE AND THE CLENCHING OF THE JAW. IT ALSO SUPPLIES THE MUSCLE OF THE EAR (TENSOR TYMPANI) NECESSARY FOR NORMAL HEARING

153
Q

FACIAL NERVE

A

THE FACIAL NERVE CONTROLS THE FACE MUSCLES. IT STIMULATES THE SCALP, FOREHEAD, EYELIDS, MUSCLES OF FACIAL EXPRESSION, CHEEKS, AND JAW.

154
Q

ACOUSTIC NERVE

A

CONTROLS HEARING AND BALANCE

155
Q

GLOSSOPHARYNGEAL

A

THE GLOSSOPHARYNGEAL NERVES TRANSMIT SENSATION FROM THE UPPER MOUTH AND THROAT AREA

156
Q

VAGUS NERVE

A

CONTROLS THE ROOF OF THE MOUTH AND VOCAL CORDS

157
Q

SPINAL ACCESSORY NERVE

A

CONTROLS THE TURNING OF THE HEAD SIDE TO SIDE AND SHOULDER SHRUG AGAINST RESISTANCE

158
Q

HYPOGLOSSAL NERVE

A

CONTROLS THE MUSCLE ACTIVITY OF THE TONGUE

159
Q

FRESH WATER HAS A DENSITY OF

A

62.4 LBS PER CUBIC FOOT

160
Q

SALT WATER HAS A DENSITY OF

A

64 LBS PER CUBIC FOOT

161
Q

EGS limitations and requirements

A

Enough gas required to get the diver back to the stage, leave bottom, and ascend to the first deco stop ( at which divers goes on O2 hence no longer needing EGS)
- All divers must be equipped with EGS.

162
Q

Hydroblast gun shall be not operated for more than __ mins by any one operator in any __ hour period

A

85 mins , 24 hours

163
Q

Cleaning of masker belts should be performed in accordance with this chapter as authorized in

A

NSTM 081

164
Q

What should be established before entering the water with tools

A

Voice communications

165
Q

What are sea chests on ships `

A

Sea chests are opening in the ships hull below the water line. Sea chests serve as intakes or discharges between the ship and its sea valves for the drawing in or expulsion of seawater for the ships cooling system.

166
Q

What are protection sleeves used for

A

Installed in sea chests to prevent galvanic corrosion of sea chest valves and piping components

167
Q

Sea chests and protection sleeve drawing numbers are listed in

A

Standard Work Breakdown Structure series 120

168
Q

The ICCP system and the sacrificial anodes are the

A

secondary system of protection

169
Q

What is the primary protection for ships to avoid corrosion

A

Anti corrosion coating system

170
Q

What are the different types of bolts used on CPP blades

A

morgrip and hytorq

171
Q

What are vent hoses and fire hoses hydraulically tested to

A

Vent hose - 30 psi min for 10 mins
Fire hose - Hydro at 250 psi for 10 mins

172
Q

Types of Towing Machines (Salvage)

A

Capstan & Gypsy Head

173
Q

Capstan Max holding tension

A

45,000 lbs

174
Q

Anchor windlass/wildcat can pull an ____ lb anchor from ____ feet

A

8,000 lb 360ft

175
Q

One shot of chain is how many feet?

A

90 feet

176
Q

Anchor on a ARS 50 Class

A

Stato

177
Q

Beach Gear: Ground leg wire rope size

A

1 5/8 6x37

178
Q

Beach Gear: Ground leg breaking strength

A

214,000 lbs

179
Q

1 fathom is ___ ft

A

6 feet

180
Q

Beach Gear: Retrieving pendant size

A

1 1/4 6x 37

181
Q

Beach Gear in water deeper than ___ft is not recommended

A

300 feet

182
Q

What Happened with the USS F-4

A

Sank off the coast of oahu in 304 fsw. Deepest dive on air led to the need of mixed gas operations. First submarine sinking

183
Q

What happened with the USS S-4

A

Sub sank after collision with collision of coast guard vessel. Divers could tap to trapped sailors but could not connect air hose to sub. All sailors died. Led to the creation of the Momsen Lung.

184
Q

Who created the first escape lung for sub rescue.

A

Charles Momsen, 1929

185
Q

What happened with the USS Squalus

A

Divers used mixed gas to salvage. First use of HeO2. Rescued some of the sailors using the Erickson rescue chamber.

186
Q

What event led to the Navys interest into Sub Safe program.

A

USS Thresher sinking in 8,400 fsw because of a bursting pipe.

187
Q

Ships named after Navy Divers

A

Charles Momsen, Harvey Milk, Francis Hammerburg, Stetham, Carl Brashear.

188
Q

Ship named after the first enlisted man

A

USS Osmand Ingram, first enlisted man killed during WWI

189
Q

Sealab program

A

Experimental program that compromised of alot of research and dives for our dive charts and for saturation diving.

190
Q

Navy Diver medal of Honor recipients

A

Francis Hammerburg
John Mihaloski
John McDonald
Frank Crilley
Tom Eadie
Orson Crandall
Willaim Badders

191
Q

NSTM that governs O Rings

A

NSTM 078

192
Q

NSTM that governs threaded fasteners

A

NSTM 075

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