Mock Exam RRC

Question 1

$$1 a- Explain the principles of safe shift handover (3)

Answer 1

1- Make communication Effectiveness at shift change-over a high priority
2- Include communication skills in the selection criteria for shift workers and train all staff to communicate well
3-Condute handover face-to-face with staff from shifts taking part
olhar pg 2-6

Question 2

$$1 b- Outline the main operational issues communicated at shift handover (6)

Answer 2

1-Update on ongoing Permits ex …
2-Issues with the process over previous days ex…
3-Overrides on instrumentations and safety system ex..
4-Plant out commission ex…
5- Emergency that occurred during the shift ex…
6- Incidents or injuries following accidents during th Shift

Question 3

2a- Identify the hazardous properties of LPG (3)

Answer 3

1-Very flammable and explosive and asphyxiating
2- Have then air it is very danger for persons working in low-lying or confined areas
3-Weeck concentrations can be ignited with flame readily and flash back to the source of the leak

Question 4

2b- $$Outline the risk associate with LPG (4)

Answer 4

1-There is a risk of frost burns due to the low temperature temperatures
2- Risk of pool fire when flmmbl liquid leaks from a vssl or pipeline forming a fluid reservoir, which then ignite. Can cause upward face burn
3- Risk of Jet fire if there is a rapture of pressurised pipe or vessel that ignite causing fire in different directions
4- Risk of fire and explosion

Question 5

$$ 3- Outline the typical “purpose” of Safety case and safety & Safety Report . (3) it

Answer 5

1-Safety C demonstrate that the duty holder are able to control major accident risk efct
3-Is A core doc to for check by both parties that Rsk contrl & Sfty mangmnt systm are in plc & op as they shld
1-Safety Reprt. ( Normally onshore ) Demonstrate that safety measures are in place to prevent major accidents and limit consequences to people and the environment
2- Show use of a systematic process to arrive at the risk controls, show the depth to witch you have gone to develop them
3 Show you can correct any shortcomings

Question 6

$$4a- Identify three Marine hazards associated with all type FPSOs ( 8 )

Answer 6

1- Extreme weather conditions
2- Waves loading against the ship
3-Operational hazards of loading and unloading
4-Collision with passing supply vessels
5- Long term expose to environment condition
6- Additional motions/Stress from ship-like structure
7-Anchoring failure
8- Leaking or spill hazard product in to the sea

Question 7

4b Identify suitable controls that minimise risk when operating FPSOs (4)

Answer 7

1- Precautions to avoid ingress of flammable vapours
2-Hoses inspected for defects
3-Precautions against electrical discharge
4-Weather monitored before and during any operation ( suspend the operation if high wind or electrical storms are expected )

Question 8

5a- Outline two examples of PFP to protect a vessel (2)

Answer 8

1-Enclosures : Fire-Resisting boxes or trunking place around critical components
2- Seals/ Sealants : Intumescent door seals to prevent the passage of fire and smoke and activated by heat

Question 9

5b- Outline why the metals legs of the vessel should be protected

Answer 9

1-To make sure preserved the structure of the vessel
2- To avoid been destroy by corrosion
3- To make sure the vessel do not collapse.

Question 10

5c- Outline how Fixed dilute water system could provide fire protection

Answer 10

Will protecting the structure using water or foam as the extinguishant from a single valve from a multiple discharge valve ,all of the heads at once cooling-dawn the surface and extinguish or mitigate the fire

Question 11

5d- Identify two examples of AFP (4)

Answer 11

1–Fire/Foam sprinkler installations
2-Water mist systems,water /foam monitors and houses
3-Portable fire extinguish
4-Dry chemical installations

Question 12

6a-$$ Outline Creep (2)

Answer 12

1-High tmprt & with constnt load /strss applied cls to th elstc limt, mtrl cnt df sly ov time
2-How it will act Dep on tm and tmprt. major factin hot hgh prss envi, furn and turb

Question 13

6b-$$ Outline Stress corrosion cracking

Answer 13

1- Occur when 3 criteria appear together: * A susceptible material *A Corrosive environment *Enough tensile Strrs to induce the condition - Is worse : *Corrosion environment * At elevated temp

Question 14

6c-$$Thermal Shock

Answer 14

1*Thermal Shock - Rpd & Extm tmp chan, dif prt of obj expnd by difrt amnts lds 2 fatg failure, cause it to crack

Question 15

6d-$$Brittle fracture

Answer 15

1*Brittle fracture-sudddly witht wrning, to mch load plcd on strct and mtril , smll crack sprd tr quckly & mssv flr is pdc

Question 16

7-$$ Outline four types of work activity associated with platform that might required PTW and give reason for it (4)

Answer 16

1- Hot work = There is a risk of fire cause by welding, grinding or radiation
2- Confined Spaces = Risk of dangerous gasses or
3-Work on height = Dangerous of fall or drop objects
4-Work over water = Diving activities

Question 17

8- Excluding AFP & PFP, Outline physical design features of the platform that would minimise risk to the operating personnel in the event of a major incident (7)

Answer 17

1- Positioning and protection of Control rooms
2- Pos & Prot of critical equipment including elect suppy
3-Pos & Prot of occupied area, Particularly Accmmdtm & Welfare areas
4-Pos & Prot of escape equipment, with safe routes and access to evacuation and rescue craft in protected area
5-Strength & integrity of main structural features
6-Protection includes structures built of materials that are fire resistant and blast resistant
7- Isolating Critical areas from non-critical

Question 18

9a- Identify two ways in which vapour clouds can be generated. (3)

Answer 18

1 - Overfilling or overflowing of a tank or vessel causing a release of hydrocarbon fuel.
2-Fracture or failure of the tk ,vssl or pipe wrk causing a release of hydrocarbon fuel
3- Splash filling of tanks or vessel

Question 19

9b- Outline how vapour clouds explosion can be generated (4)

Answer 19

1- A flammable Vapour must be present
2-The vapour air concentration must be between upper and lower explosive limits
3-An ignition source that exceeds the minimum ignition energy is required to ignite the vaupor
4-Unconfined V C may travel a considerable distance before igniting or they may be dispersed below the LEL depending the conditions

Question 20

9c- Identify the physical consequences of vapour cloud explosion

Answer 20

1 - Escape vapour generates a wave of overpressure - a explosion - which can destroy storage vessel and send debris over a large area.

Question 21

10a- Identify factors that influence the generation of the electrostatic charge ( 3 )

Answer 21

1- The flow of a flammable liquids inside a pipe can build up static electricity
2- Many fuels are capable of collecting charges and holding it during high velocity flow
3-The static discharge required 2 cause ignition will dpnd greatly on the flammability of the fuel in air mixture

Question 22

10b- Outline practical ways of minimising the formation of electrostatic ( 4 )

Answer 22

1- Control pump rates
2- Proper pipe size to keep liquid velocity low.
3- Install earthing and bounding far enough upstream of discharge point to allow adequate time for any static generated to leak way
4 - Directing the discharge of liquid down the side of the vessel.

Question 23

11- Identify the documented information that might be used by the investigation team to determine the cause of accident (5)

Answer 23

1- Log book entry 
2- Company policy
3- Safety system of work
4- Maintenance and disciplinary record.  
5- Risk Ass * P-T-W .

Question 24

3 ( mock ) Outline the “Typical” content of Safety case and safety & Safety Report . (4) it

Answer 24

Pg 1-31 / 1-The operators Details ( Name and ad )
2- Design information regarding design process ,concepts and systems on the installation
3- A summary of how safe representatives were consulted regarding the safety case
4-Description and Diagrams of the structure of the installation
Description of the plant

Question 25

$$Outline features of a leak detection system that could minimise risk to workers on the plant

Answer 25

1-Adequate number of detectors and location
.Variety of gas detector in different location
2-Maintenance & Testing
. Many systems have failed bcase of fouling,corrotion,etc
3-Uninterruptible power supply
.In the event of pwr failure, the protection is maintained
4-Manual Backup
.Supplement with manual call point
5-Zoning
.Detectors wired together into groups/zone, so that they trigger a zone alarm on the fire alarm panel

Question 26

$$Identify the information that might be include on a check list for a investigation following an accident

Answer 26

1-Witness statement
2- Photos
3- Video
4-Phisycal evidence
5-sketches
6-Measurements
7-Written description of factors such as wind speed,temperature etc

Question 27

$$$Identify the typical content of such a basic truck driver

Answer 27

1-Vehic behaviour
2-Specific vehicle requirements
3-Fillin & Dischg
4- Specif rls ( apprvl certfts, marking, placarding )

Question 28

$$$Outline two functions of Permit-to-work

Answer 28

1-To ensure that non-routine, usually hazardous work is assessed,planned ,authorised and carried out without compromising the health and safety of the workers involved and other people that may be affected
2-Ensures that proper consideration is given to the risk and that they are dealt with before the work start and throughout the duration of the task.

Question 29

$$$Outline four of the elements that should be included in a typical permit-to-work

Answer 29

1-The work involved
.Task, activity that will be carried out
2-What Isolation is required
.What area need be isolated and how it will be done
3-Hazards in the work to be carried out
.Access the risk of the task
4-Duration of the work
.Time that will start and time that will be finish, if the work will be continue by other person or team, the permit must be endorsed by them before transfer the work to them

Question 30

$$$Outline practical ways of manage contractor when they arrive at the site

Answer 30

1-Include them in all health and safety procedures of the operation
2-Induction training for the site or installation
3-Meeting before work for onshore or offshore work
at any location
4-Make clear that contractor understand that if they do not comply with company safety system of work, can result in to disciplinary for individual as well penalty can be impose on the main company.
5- Make then know about Exclude areas in the site.
6- Explain the dangers of the site or installation
7-Ensure the contractors know who the site or installation contact person is, and how they can be contacted

Question 31

Outline four shift handover principles

Answer 31

1- Higth Priority, conducted face to face
2-Two way with both participants taking joint responsability
3- Carried out using a verbal and written communication after 12 hrs shift
4- Give as much time as necessary