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E-7 Exam > 2021 Bibs > Flashcards

2021 Bibs Flashcards

1
Q

TRCS EPS

A 
1- rapid loss
2- increase
3- contamination
4- fire
5- loss of o2
6- loss of trc primary air
7- loss of tl primary air
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2
Q

How to switch to secondary on the TL?

A

Load ahp-r-4 (sec) to 200 psig

Back off ahp-r-3 (pri)

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3
Q

Polarity for o2-arc cutting?

A

Straight polarity (electrode negative)

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4
Q

Steel tubular electrodes cut up to what metal thickness?

A

2”

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5
Q

Burn time of steel tubular?

A

Aprox. 1 min

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6
Q

How many amps does steel tubular require at depth?

A

300-400 amps

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7
Q

O2 for cutting should be set at ____

A

90 psi

70 cfm

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8
Q

How many small rods are in a BROCO ultra thermos electrode?

A

7

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9
Q

What sizes of Kerie cable?

A

6mm
9mm
12mm

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10
Q

What valve controls o2 valve on kerie cable?

A

Hoke valve

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11
Q

Kerie cable burns how fast?

A

2 fpm

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12
Q

Wet welding uses what polarity?

A

Straight polarity or dc electrode negative

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13
Q

What is required blade pitch for cpp blade removal?

A

Zero pitch position

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14
Q

What is bsrb?

A

Blade seal base ring

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15
Q

Dowel pins cannot stick out no more than how many inches on cpp blades?

A

3-3/8 inches

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16
Q

Torque all cap screws on cpp blades to?

A

75 ft lbs

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17
Q

What nstm provides general info for cpp?

A

245

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18
Q

A successful propeller change requires what amount of time?

A

2-3 weeks

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19
Q

Ship should have a min water depth of what at the stern for a propeller change?

A

10ft greater than ships draft

20
Q

What nstm covers underwater inspection of sea chest protection sleeves?

A

505

21
Q

Sea chests that are serviceable by divers normal range between?

A

28-46 inches

22
Q

What are 3 different types of stern tube seals?

A

Box patch
Mechanical shaft seal
Wrapping

23
Q

Wrapping type seals must provide an acceptable leak rate of how many min?

A

30

24
Q

What fairing compound must be measured, mixed, and applied manually?

A

Hycote 461

25
Q

How much weaker is the breaking strength of wet nylon vs dry?

A

15%

26
Q

What bc is used with mk16?

A

Mk11

27
Q

How long is a mk16 good for after initial setup checklist is completed and placed in stand by condition?

A

2 weeks

28
Q

High pressure indicators need to be within what percentage of gauged bottles?

A

10%

29
Q

Normal limits for mk16?

A

N2o2: 150
Heo2: 300

30
Q

Days Co2 absorbent canisters for mk16 can be stowed prior to diving?

A

14 days

31
Q

How many min of o2 flow over mk16 sensors before steady green?

A

4 min minimum

32
Q

How many bendix connections are checked on the mk16?

A

8

33
Q

Initials on mk16s are good for how long in stand by conditions?

A

6 months

34
Q

A compressor log must include what information

A 
Date
Start/stop hour meter readings
Corrective /preventative maintenance 
Component being charged
Pressures not within parameters
35
Q

NAVSEA 00C2

A

Salvage

36
Q

NAVSEA 00C25

A

Environmental

37
Q

NAVSEA 00C3

A

Diving

38
Q

NAVSEA 00C4

A

Certification

39
Q

NAVSEA 00C5

A

UWSH

40
Q

How do you determine what gauge to use?

A

130-160% of max operating pressure of the system

41
Q

OPNAVINST 5102.1

A

WESS reporting

42
Q

Saturation diving is capable to go to

A

1000 fsw

43
Q

DP vessels we can use

A

IMO Class 2 or 3 only

44
Q

SCUBA cold water diving?

A

37 and below

45
Q

Scuba maximum current

A

1 knot

46
Q

How often do you signal a diver on scuba?

A

2-3 min

47
Q

Bailout bottle size

A

19-50 scf

E-7 Exam (3 decks)

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