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Bell Diving Supervisors QUESTIONS > Saturation UK REG questions > Flashcards

Saturation UK REG questions Flashcards

1
Q
  1. Buoyant Bell should have your buoyancy checked ?

a) every 3 months
b) every 6 months
c) every year
d) every 5 years

A

c) every year

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2
Q
  1. Buoyant bells should have their buoyancy checked by substituting what weight per diver ?

a) 100kg
b) 80 kg
c) 90 kg
d) 150kg

A

d) 150kg

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3
Q
  1. On gas reclaim system, the bell divers gas supply should have on-line in Dive control ?

a) hi/lo O2 & Co2 analyzers
b) hi/lo o2 analyser, low Co2
c) hi/lo o2 analyzer, high Co2
d) high o2 analyzer, high Co2

A

c) hi/lo o2 analyzer, high Co2

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4
Q
  1. Bell life support equipment ought to have a minimum duration of?

a) 12h
b) 24h
c) 48h
d) 72h

A

b) 24h

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5
Q
  1. A bell O2 adds system should be fitted to?

a) all close bells
b) all wet/ open bells
c) every diving system exposed to greater than 100mb internal pressure
d) all bells used below 50 mq

A

a) all close bells

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6
Q
  1. Secondary bell comms must be by?

a) emergency telephone
b) through water comms
c) flashing lights
d) umbilical line pull signals

A

a) emergency telephone

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7
Q
  1. How often must diving bells in U.K. be tested at greater than mwp?

a) 5 yearly
b) 2 yearly
c) yearly
d) 3 yearly

A

a) 5 yearly

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8
Q
  1. How often must gas cylinders on the outside of the hyperbaric rescue vessel be leak tested to mwp?

a) yearly
b) 2 yearly
c) 5 yearly
d) 10 yearly

A

b) 2 yearly

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9
Q
  1. A bell diver is working when a red alert occurs. Would you?

a) bring the diver into the bell then bring the bell up
b) bring the diver to clump weight
c) consult captain as to where the diver should go
d) bring diver to outside of the jacket

A

a) bring into the bell then bring the bell up

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10
Q
  1. When should the door of the TUP to the bell trunk be closed?

a) when divers are showering
b) when divers have transferred
c) when decompressing
d) all of the above

A

d) all of the above

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11
Q
  1. What is the minimum diving team for the closed bell ops?

a) 5
b) 7
c) 9
d) 12

A

d) 9

Note: you may be asked their job titles

➢ Diving supervisor
➢ Two life support supervisors
➢ Two life support technicians
➢ Two divers in the bell
➢ Standby diver on the surface
➢ Tender for the standby diver
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12
Q
  1. What’s the recommended maximum time in saturation ?

a) 30 days including deco
b) 28 days including deco
c) 30 days excluding deco
d) 28 days excluding deco

A

b) 28 days including deco

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13
Q
  1. What’s the maximum bell run seal to seal?

a) 7h
b) 8h
c) 10h
d) not specified

A

b) 8h

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14
Q
  1. What’s the minimum rest periods of bell divers after the bell run?

a) 6h
b) 8h
c) 12h
d) 16h

A

c) 12h

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15
Q
  1. When operating a 3 man bell run, what’s the maximum lock out time for each diver?

a) 4h
b) 6h
c) 8h
d) any with their agreement

A

b) 6h

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16
Q
  1. How may it be necessary to test hyperbaric lifeboat internal gas cylinder above mwp?

a) 1 year
b) 2 years
c) 5 years
d) 10 years

A

b) 2 years

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17
Q
  1. After a Heliox saturation diving, a diver (with no DCI) should not fly internationally for at least ?

a) 12h
b) 24h
c) 48h
d) 6h

A

b) 24h

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18
Q
  1. When could the TUPC to bell trunk door be left open?

a) when living chamber to door is closed
b) when the diver is working in the bell
c) during the pre dive checks
d) only when the diver is going through to the bell

A

d) only when the diver is going through to the bell

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19
Q
  1. Under a normal circumstances after an 18 days sat, how long should a diver remain at atmospheric pressure?

a) 28 days
b) 9 days
c) 18 days
d) 6h

A

b) 9 days

Note

i) The surface interval should not be less than 50% of the duration of the preceding saturation dive or 10 days whichever is the lesser.

ii) Where a diver carries out two saturation dives separated by a shorter surface interval than that defined in 2.1, the surface interval subsequent to the two dives should be not less than
the duration of the longer of the two saturations.

A diver’s cumulative saturation exposure should not exceed 182 days in any 12 calendar months.

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20
Q
  1. On a 24h round the clock sat diving ops, how many bell supv would be required ?

a) 2
b) 2+1 supt
c) 4
d) 2+1 lss

A

c) 4

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21
Q
  1. During a 3 man bell runs where divers spend more than 4h in the water, they should?

a) be offered refreshments breaks after 2h lockout
b) spend every 3rd dive dry as the bell man
c) only lockout in pairs
d) both a & b

A

d) both a & b

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22
Q
  1. How many life support personnel must be at or the vicinity of the life support control point?

a) 1
b) 2
c) 1+1 getting lunches
d) 1+1 lss on call

A

b) 2

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23
Q
  1. What type of bell would have its beacon set on channel B and would the reply frequency would be?

a) an observation bell, frequency of 37.5 kHz
b) a DSV Bell, frequency of 38.5 kHz
c) a DSV Bell, frequency of 39.5 kHz
d) a rescue bell, frequency of 37.5 kHz

A

D

PS: the question is asking about rescue channels. Could be channel A or B.

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24
Q
  1. What’s the reply frequency and interrogation frequency on a channel A beacon?

a) reply 37.5 kHz, interrogation 38.5 kHz
b) reply 38.5 kHz, interrogation 39.5 kHz
c) reply 39.5 kHz, interrogation 39.5 kHz
d) reply 37.5 kHz, interrogation 37.5 kHz

A

a) reply 37.5 kHz, interrogation 38.5 kHz

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25
Q
  1. Who must the A supervisor be able to see during an enclosed bell ops?

a) the winch driver
b) the divers in the bell and the chamber
c) the life support control station
d) the surface standby diver
e) all of the above

A

b) the divers in the bell and the chamber

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26
Q
  1. When new gas arrives on board you?
A

Analyse them

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27
Q
  1. HLB minimum life support period?
A

72 hours

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28
Q
  1. Pre dive sat medicals should be carried out within what time, prior diving?
A

24 hours

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29
Q
  1. How long is a divers “fitness to dive medical “ valid for?
A

12 months

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30
Q
  1. According to IMCA How many supervisors can be appointed to supervise at any one time?
A

2 supervisors

Supervisor in charge is the one signing the logbook
The other is identified as a second supervisor.

Note: IMCA D014. (3.4 section)

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31
Q
  1. Who can appoint a diving supervisor?
A

DIVING CONTRACTOR

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32
Q

2% O2 must always be a helium used in diving ops. What’s the minimum required for N2?

a) 100n2
b) 10% O2
c) 2%N2
d) 5%O2

A

C) 2%

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33
Q

An HRV must meet certain criteria listed below:

a. Green in colour and clearly marked with two visible signs
b. Orange in colour and clearly marked with two visible signs
c. Orange in colour and clearly marked with three visible signs
d. Red in colour and clearly marked with three visible signs

A

c. Orange in colour and clearly marked with three visible signs

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34
Q

When using a cross-haul wire on a bell, the wire must be?

a) 1.5 x swl of main wire
b) sufficient strength to lift bell to interface
c) 8:1 safety factor
d) 6.5 x swl of main wire

A

c) 8:1 safety factor

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35
Q

What’s the recommended minimum breaking strain of a bell winch wire?

a) 1.5 x the working load
b) 1.25 x the working load
c) 1.1 x the working load
d) 8 x the working load

A

d) 8 x the working load

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36
Q

Main bell wire should be rated above SWL by a factor of:

a. 1.25:1
b. 1.3:1
c. 3:1
d. 8:1

A

d. 8:1

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37
Q

A hyperbaric lifeboat must be able maintain life support for a minimum period of:

a. 24 hours
b. 48 hours
c. 72 hours
d. 96 hours

A

c. 72 hours

38
Q

What is the maximum allowable duration for a single saturation exposure?

a. 14 days
b. 18 days
c. 28 days
d. 30 days

A

c. 28 days

39
Q

Divers voice recording should be:

A

Leaves surface and arrives surface

Until the diver returns to the place he started diving ops

40
Q

In the UK ACoP diving operations record be retained for…

a. 1 year
b. 2 years
c. 3 years
d. 5 years

A

B

41
Q

What is the stand for : NPT, JIC, BSPP, BSPT

A

NPT: National Pipe Thread

JIC: Joint Industrial Council

BSPP: British Standard Pipe Parallel

BSPT: British Standard Pipe Tapered

42
Q

What is the noise level limit to work in the UK?

a. 70Db
b. 80Db
c. 90Db
d. 95Db

A

C

43
Q

For how long the habitats needs to tbe capable of sustaining the lives of the trapped divers?

a. 12h
b. 24h
c. 48h
d. 72h

A

C

44
Q

In the UK HSE states the Work Exposure Limit (WEL) following the BS EN 12021 Air Purity Standard for carbon monoxide is?

a. 2 PPM
b. 3 PPM
c. 5 PPM
d. 10 PPM

A

B

45
Q

A copy of the project diving plan must supplied on request to? U.K. regs

a) a radio operator
b) IMCA
c) a HSE inspector
d) the OIM

A

c) HSE inspector

46
Q

Who must serious offshore incidents be reported to? U.K. regs

a) HSE
b) company safety officer
c) operations manager
d) project manager

A

a) HSE

47
Q

U.K. territorial waters cover up to how far from the low water line? U.K. regs

a) 6 nm
b) 8 nm
c) 12 nm
d) 100 nm

A

c) 12 nm

48
Q

Risk assessment must be carried out prior to commencing diving under ?
U.K. regs

a) diving ops at work regulations 1990
b) SI 2776/1997
c) management of HSE at work regs 2004
d) both b and c

A

d) both b and c

49
Q

Compressed air used for diving must comply with? U.K. regs

a) DMAC 22
b) IMCA 038
c) BS 1319
d) BS EN 12021

A

d) BS EN 12021

50
Q

The legal minimum dive crew for air diving offshore U.K. is?

a) 3
b) 4
c) 5
d) 6

A

c) 5

51
Q

Under IMCA international ACoPs, what’s the max depth and bottom time for surface supplied mixed gas wet bell dive?

a) 50msw 30min
b) 50msw 25min
c) 75msw 30min
d) 85msw 30min

A

c) 75msw 30min

52
Q

Define air purity standards?

A

Is BS EN 12021

Carbon monoxide CO - 5ppm
Carbon dioxide CO2 - 500ppm
Water - 25 to 50mg/m3
Oil - 0.5mg/m3

UK HSE The CO is 3ppm

53
Q

State all the statutory instruments = laws of HSE at work act 1974.

A
  • SI 2002 - 1587: the merchant shipping (diving safety) regulations 2002
  • SI 1976 - 923: submarine pipelines ( diving ops) regulations
  • SI 1997 - 2776: the management of HSE at work regulations 1999 (for risk assessments)
54
Q

State the standard for Air purity and colour coding of gas cylinders .

A
  • BS EN 12021:1999 standard for Air purity
    ( oil 0.5mg/m3. CO 3ppm. CO2 500ppm. Water 25-50 mg/m3 )
  • BS EN 1089-3-2004 colour coding of gas cylinders
    Should be marked chemical formula and gas contents.
55
Q

What are the states of SI 2776/1997 diving at work regulations and approved code of practice ( ACoP) for “commercial diving projects offshore”?

A

a) diving ops should be carried out from a “safe and suitable place”
b) diving ops are deemed to be taking place when: the diver enters the water or any other liquid or chamber pressure that exceeds 100mb (1msw).
c) deco chamber required on all offshore/pipeline diving jobs.
d) deco chamber must be twin lock with enough room for 2 divers to lie down in comfort.
e) permission to platform within 500m range, wellhead and pipelines.
f) minimum divers qualification to work offshore.
g) maximum depth for surface diving 50msw
h) oxygen reduce at source to no more than 40 bar ( Norway - as low as possible)

56
Q

What’s the minimum required team for surface air, mixed gas and saturation diving?

A
  • surface diving: 5
  • surface mixed gas diving: 6
  • saturation diving: 9
57
Q

What’s the period for testing compressors?

A
  • 6 monthly test flow and purity BS EN 12021

Note: UK 3 monthly

58
Q

In both UK and Norwegian legislation, depth gauges must be re-certified?

a) every 3 months
b) every 12 months
c) every 6 months
d) every 24 months

A

B - UK and Norway EVERY 12 months

IMCA - every 6 months

Note: if doesn’t specify anything in the question, go for the IMCA answer.

59
Q

UK: Diving plant and equipment should be checked before a dive. Maximum time between checks and dive is?

a) 4 hours
b) 6 hours
c) 5 hours
d) 12 hours

A

b

PS: Check where stated

60
Q

Gas purity regulations state that compressor gas samples must be analysed every six month. Which regulations?

a) SI 399
b) BS 4001 ( suppressed by BS EN 12021)
c) BS 23
d) BS 1780

A

b

61
Q

Name the current diving regulations.

A

Diving at Work Regulations 1997 SI 2776

62
Q

Gauges which directly affect the diver, (i.e., depth gauge, gas supply, pressure gauge) must be tested every:

a 3 months
b 6 months
c 9 months
d 1 month

A

B - IMCA 6 months

U.K. and Norway: 12 months

Note: if doesn’t specify anything in the question, go for the IMCA answer.

63
Q

As a reportable disease, decompression sickness must be reported, in writing, to the Health and Safety Executive:

a Within 3 months
b Within 3 days
c Within 28 days
d Within 10 days

A

D

64
Q

What is the minimum qualification for a diver to work offshore:

a Part I
b Part II
c Part III
d Part IV

A

a

65
Q

HSE Diving Information Sheet recommends that oxygen quad pressure be reduced at source to:

a 20 bar
b 35 bar
c 40 bar
d 50 bar

A

C

66
Q

Who must, under UK regulations, inform the HSE of any Type I or Type II DCS?

a Dive Supervisor
b Diving Contractor
c OIM
d Client

A

B

67
Q

In the UK an air sample must be taken from a compressor and analysed every:

a Monthly
b 3 months
c 6 months
d 12 months

A

B - in the U.K. 3 months

IMCA : Every 6 months

Note: if doesn’t specify anything in the question, go for the IMCA answer.

68
Q

The maximum allowable CO in an air supply for diving in the UK is:

a 1 ppm
b 3 ppm
c 40 ppm
d 500 ppm

A

B

69
Q

In the UK, umbilicals must be tested to their maximum working pressure every:

a 3 months
b 6 months
c 1 year
d 2 years

A

D

70
Q

Who is responsible for ensuring a risk assessment is carried out prior to the diving project commencing?

a HSE
b Dive Supervisor
c Offshore Manager
d Diving Contractor

A

D

71
Q

In the UK who is responsible for enforcing the Diving Regulations?

a. AODC
b. HSE
c. IMCA
d. DOE

A

B

72
Q

IMCA and HSE recommend that oxygen be reduced at source to:

a. 30 Bar
b. 35 Bar
c. 40 Bar
d. 60 Bar

A

C

73
Q

In the UK Recording during diving operations should be kept:

a. For a minimum of 8 hours
b. For a minimum of 12 hours
c. For a minimum of 24 hours
d. For a minimum of 48 hours

A

D

74
Q

A DP DSV is on a 4 point mooring 6 miles offshore in U.K. waters salvaging a helicopter at 58 msw depth. Which diving regulation/ACoPs covers this operation and why?

A) inshore diving regulations because only 6 miles offshore
B) offshore diving regulations because oilfield type of work
C) offshore diving regulations because DP DSV
D) offshore diving regulations because 58msw operations

A

D) offshore diving regulations because 58msw operations

75
Q

A DSV is on DP in a Scottish loch. Water depth is 200msw. The divers are at 25msw. Which diving regulations/ACoPs covers this operation and why?

A) inshore diving regulations because 25msw working depth
B) inshore diving regulations because location inside 12 miles limit
C) offshore diving regulations because the max possible depth is 200msw
D) offshore diving regulations because vessel on DP

A

D) offshore diving regulations because vessel on DP

76
Q

An air diver-training course is using a close mini-bell in a flooded Yorkshire mineshaft at 45msw. Which diving regulation/ACoPs covers this operation and why?

A) inshore diving regulation because less than 50msw and using air.
B) inshore diving regulation because location not offshore
C) media diving regulation because BBC are making a film of course
D) offshore diving regulation because close bell being used

A

D) offshore diving regulation because close bell being used

77
Q

UK territorial waters reach how far from the low water line?

a) 7 nautical miles
b) 12 nautical miles
c) 30 nautical miles
d) 4 nautical miles

A

b) 12 nautical miles

78
Q

Under UK HSE the BS EN 12021 what is the max limit for CO in a breathing air?

a) 1ml.m3
b) 500ml.m3
c) 3ml.m3
d) 15ml.m3

A

c) 3ml.m3

79
Q

Under the U.K. ACoP for offshore diving, how long should recorded communications be retained for ?

a) 48h
b) 24h
c) 12h
d) not necessary

A

a) 48h

Remember: 24h IMCA
48h U.K.

80
Q

According to ACoPs, a dive basket used to deploy a standby diver should be?

A) large enough to carry 2 divers in an un-cramped condition
B) fitted with 3 sets of emergency breathing equipment
C) fitted with a rigid ladder which extends 2m below the skip
D) fitted with emergency telephone

A

A) large enough to carry 2 divers in an un-cramped condition

81
Q

Do any of following come under the SI 2776/1997?

a) clean rooms
b) submersible craft
c) exposure less than 100mb
d) none of the above

A

d) none of the above

82
Q

How long should a voice recordings should be kept assuming no incident occurred during diving ops ? ( EXAME)

a) 8h
b) 12h
c) 24h
d) 48h

A

c) 24h - IMCA reg

d) 48h - UK reg

83
Q

The diving work regulation 1997 would apply to?

a) the care of patients in hospital
b) emergency treatment in the ambulance
c) a patient in a transfer under pressure DDC in a helicopter
d) none of the above

A

d) none of the above

84
Q

Who has the main responsibility to ensure a diving project complies with SI 2776/1997?

a) the client
b) the license holder
c) the senior dive supervisor or supt
d) the diving contractor

A

d) the diving contractor

85
Q

What are the states of SI 2776/1997 diving at work regulations and approved code of practice ( ACoP) for “commercial diving projects offshore”?

A

a) diving ops should be carried out from a “safe and suitable place”
b) diving ops are deemed to be taking place when: the diver enters the water or any other liquid or chamber pressure that exceeds 100mb ( 1msw).
c) deco chamber required on all offshore/pipeline diving jobs.
d) deco chamber must be twin lock with enough room for 2 divers to lie down in comfort.
e) permission to platform within 500m range, wellhead & pipelines.
f) minimum divers qualification to work offshore.
g) maximum depth for surface diving 50msw
h) oxygen reduce at source to no more than 40 bar ( Norway - as low as possible)

86
Q

In the UK sector it is a requirement under the ACoP that the divers have their original certificate in their possession at the work site.

True or False?

A

True

87
Q

The UK ACoP requires that the diving operations record be retained for …

a) 1 year
b) 2 years
c) 3 years
d) 4 years

A

b) 2 years

88
Q

HSE UK ACOP Regulation 9 states that how many supervisors shall be appointed to supervise at any one time

a. 1
b. 2
c. 2 + trainee
d. 3

A

a. 1

89
Q

According to HSE regulations in a two man bell run the lockout time can be flexible within the total bell run time. However what is the maximum lockout time of a diver.

a. 2 hours
b. 3 hours
c. 4 hours
d. 6 hours

A

C

PS: the question says 2 man bell run

90
Q

The maximum allowable CO in an oxygen and nitrogen supply for diving in the UK according to BS EN 12021 is?

a 1 ppm
b 2 ppm
c 3 ppm
d 5 ppm

A

C

PS: Sheet 9 UK regs. Check table for more details nitrogen and oxygen.

91
Q

The maximum allowable CO in a Heliox supply for diving in the UK according to BS EN 12021 is?

a 1 ppm
b 0.2 ppm
c 3 ppm
d 5 ppm

A

B

Check sheet 9 UK diving regs

Bell Diving Supervisors QUESTIONS (15 decks)

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