508 Welcome to your work permit receiver saudi aramco questions and answerslet's get start Name Email 1. On which reading of LEL, entry is not permitted in confined? 50 % LEL 0.05 LEL 0.5 LEL 10% LEL and above (0.1 LEL) None 2. Which non‐flammable material is commonly used to purge process equipment? Nitrogen Nitrate Oxide Nitrite Nitrate None 3. Which work permit requires sewers to cover up to 75 ft? Hot work permit Confined space entry permit No work permit have such requirement Cold work permit None 4. What would the issuer requires when welding in service hydrocarbon equipment? Fire blanket Fire watch Fire department Fire station None 5. When the operation person has been isolated the unit and install padlock? Receiver will install his lock Do the job quickly They can start the job with instructions of foreman Get tools and start work None 6. What do we call the person who is required to be at a job site, because of a special skill he has? Competent person Standby man Designated representative Certified None 7. Why it is necessary to know the direction of wind? None of above To prevent sand from entering into open valve To prevent garbage and dirt to enter at work area To ensure that wind will not blow into ignition source None 8. Who can remove lock once installed? One who install lock / lock owner (mentioned on tag as lock owner) Foreman of the working crew Anyone who want to start the equipment No one can remove it once it is locked None 9. When a fire watch be required? Whenever a fire could occur For high risk job When a gas test are over %LEL For any hot work permit None 10. What information must the gas tester enter in the work permit? Gas test result, badge number and sign Gas test result and time of gas test Name badge number and test result Test result, normal gas readings and sign None 11. What should be done is O2 level is less then 20%? Breathing apparatus must be used Work can be continued without use of breathing apparatus Division head must sign the permit Breathing apparatus must be used and division head must sign the permit None 12. Does every work permit require sign that gas test is conducted? No Only confined space entry permit Only in the area where hydrocarbon is present Yes , all type of work permit require gas test None 13. When receiver smells a gas, what should he do? Inform safety department Continue work and conduct gas test by himself Report to the loss prevention Stop work and inform issuer to conduct gas test None 14. Removing fuses from electric circuit or disconnecting electrical wiring is an example of what? Locking electrical equipment Purging electrical equipment Cleaning electrical equipment Isolating electrical equipment None 15. Who can remove a lock forcefully? Person who install lock can remove it only Supervisor of working crew No one can remove a lock once it is installed Operation’s shift superintendent or foreman None 16. When preparing equipment for maintenance work, the issuer must make sure it is... Isolated repaired and certified Electrified isolated and shutdown Shutdown, isolated and de‐energized De‐energized with power turned on None 17. Hot work is not permitted if the gas test shows a reading above what LEL value? 10% LEL 0% LEL 5% LEL 20% LEL None 18. When the operation person installs the padlock to the switchgear, what should he do? Work safely Ensure that the unit is isolated Check the switch again to make sure that it is correct unit None of above None 19. What is oxygen deficiency? Too much oxygen Oxygen that is not pure High than normal amount of Hydrogen Sulfied Lower than normal (20%) amount of oxygen None 20. What must operation do before removing their locks and tags? Make sure the equipment is gas free Clean and purge the breaker Take gas test and restart equipment Make sure the equipment can be safely started None 21. For isolation locks, how many keas for one as lock? One for issuer and one for receiver One only As many crew members 3 for each lock None 22. A work permit is renewed for one more consecutive shift. What is the longest total duration allowed, including the renewal? 24 hours 48 hours 30 days 12 hours None 23. The issuer tries to start‐up equipment at the field switch after it has been isolated and before work start to make sure? It cannot accidently start It has been purged and cleaned There is no gas in the area The receiver’s tag is installed None 24. On what level of oxygen, no work is allowed? None of there Any reading above 23.5% 16.5% 22.8% None 25. Which one is applicable for H2S Readings? 10 ppm or above breathing apparatus must be used 10 ppm to 100 ppm division head must sign the permit Above 100 ppm No work (confined space entry) allowed All of Above None 26. The reason equipment must be de‐energized and de‐pressurized before work is started is because? Gas can be wasted People can be injured Electricity can be wasted Lock and tags will be lost None 27. At which level of oxygen breathing apparatus is required? Greater than 15% Less than 20% At 25% Less than 10% None 28. Installing locks and tags o electrical breakers prevents accidental... Blind installation Purging equipment Nitrogen release Start‐up of equipment None 29. What must the fire watch be? Trained An issuer A receiver Certified None 30. Two common methods of cleaning process equipment are.... Treating and clarifying Streaming and gas testing Purging and gas testing Water wash and steaming None 31. In a confined space entry, what is the most important thing to do? Get a hot permit Insure that space is isolated Non sparking tools will be used Gas release can be made safely None 32. On which reading of gas test, breathing apparatus must be used? All of Above O2 18.5% LEL 8% CO is 500 ppm None 33. Is there any condition when a lock can be forcefully removed? It cannot be removed forcefully When any one need to start or energize that equipment When, who install lock, his supervisor or superintendent cannot be contacted When work permit is finished None 34. For welding activity, portable fire extinguisher shall be available within.... 3 m (10 ft) Not required for welding job 7.5 m (25 ft) 23 m (75 ft) None 35. During welding operation where will be your fire extinguisher be located? Upwind position On welding machine Downwind position With welder None 36. Confined space entry is not allowed if... All of Above CO is 1000 ppm H2S is above 100 ppm LEL 10% None 37. LOTO system, how many padlocks are required to be put on for 4 different contractors? 5 Only one 4 6 None 38. What are the methods of isolation? Install tag and purge Shutdown and clean Remove piping and install blind Install lockout and take gas test None 39. If only issuer and receiver (one group) is involved in an activity which needs isolation, how many locks are required? No lock is required 1 3 2 None 40. Why do we install tags as well as locks? To list safety precautions To explain why the lock is installed To recover purging cycle To record a gas test None 41. Equipment is isolated to make sure that it cannot be... Shutdown by accident Started‐up, leak or cause electrical shock Shutdown on purpose Taken to a shop for repair None 42. What should be check/conformed before removing a lock forcefully? Work permit is expired Personnel and facilities are safe from injury or damage All workers are in rest shelter Lock can be removed without any checks or precautions None 43. What is checked in a gas test? Oxygen level Oxygen, flammable and toxic gases Flammable gas, inert gas and heavy gas Oxy‐acetylene, water vapours None 44. Who from the work crew install locks? The Foreman and the receiver Every member of the crew One member of from each working crew The issuer and the gas tester None 45. What is one hazard with doing hot work? Vapour pressure Cold work Ignition source Flash point None 46. Fire watch must know how to... Operate process equipment Be a receiver Operate fire equipment given to him Take gas test None 47. Who should be the first organization to install locks and tags? Maintenance Construction Operations Receiver None 48. What color is the Saudi Aramco hot work permit? Green Blue Red Yellow None 49. On which level of LEL, breathing apparatus is required to use? At 0.0 LEL 10% 0.05 LEL(0.05) and above 0.5 % and above None 50. What happen to the operations lock and tags installed on equipment when operators changes shifts? The tag must be changed The lock must be changed The key are usually transferred to new shift The lock and tag must be changed None 1 out of 10 Share 0 FacebookTwitterPinterestLinkedinRedditWhatsappTelegramEmail previous post Saudi Aramco & Sabic Work Permit Receiver Question Answers next post WPR MCQs 2025
