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