Our goal is to publish practical, experience-based FAQs in real-time oil and gas interview questions and answers sessions to provide valuable insights for professionals in the oil and gas sector
Q.21: Which things in hydro-jetting are required for third parties?
Ans: Pump certification and the hose’s pressure rating require a valid third-party certification.
Q.22: As a safety officer, what will you check in hydro-jetting activities?
Ans: As a safety officer, I will do:
- Valid PTW.
- JSA.
- TBT must be conducted by the supervisor.
- Documentation required as per permit.
- Third-party certification and Inspection Of equipment should be valid.
- The person should be competent and authorized to do the job.
- Area should be barricaded and signage in place, and workers are using the right PPE.
- Emergency switches and the dad-man switch are working properly.
- After ensuring all requirements are met, actively monitor the site and activity. If you find anything, safely stop the activity, recalculate the risk, and start again.
Q.23: What are the controls for hydro-jetting activity?
Ans: Hydro-jetting controls are:
- Valid Permit.
- Third Party Valid Inspection.
- Inspection sticker on hoses and color coding.
- Area Barricading and signage.
- Competent Operator and Helper.
- Correct PPE.
Q.24: How will you ensure zero energy in the equipment?
Ans: Ensuring Zero Energy in any equipment,
- Isolation and LOTO Tag. (Mechanical, Electrical, Thermal, pneumatic energy)
- Verification Point and Verification Tag.
- LEL and Toxic Gas should be 0 in initial gas testing.
- Continuous gas monitoring for ensuring accidental energy release.
Q.25: If the valve is bypassing, then how will you ensure zero energy?
Ans: If some valve is bypassing, we can ensure zero energy by applying the positive isolation and (spade/spectacle blind/blind flange). Where applicable, double block valve and Bleed. We can ensure zero energy at the bleed point. Conducting gas testing.
Q.26: How will you ensure that the process line is safe to work on? (Forget about the permit?
Ans: We will ensure that the process line is safe to work by ensuring following steps:
- Isolation and LOTO.
- Line Depressurization, purging completely.
- Zero Energy Demonstration (Verification).
- Gas testing, initial and continuous.
- Visual Inspections.
Part 1 – Oil and Gas Interview Questions and Answers
Q.27: How can zero energy be demonstrated?
Ans: Zero energy can be demonstrated by ensuring and verifying energy at the verification point, and lockout and tagout verification. Equipment should be started and checked after isolation and lockout, and the equipment should not be started. Pressure, flow, and Temperature should be zero in lines.
Q.28: How will you inspect the scaffolding safety?
Ans: Scaffolding Safety can be ensured by inspecting the scaffolding structure, inspected and signed by the scaffolding inspector.
- Scaffolding Tag. (Green, yellow, and Red)
- Ensure all scaffolding parts are applied (Guard Rails, Toe Board, Access Leader).
- Verify Load rating.
- Fall Protection (harness and anchor point if required).
- Access ladder should be color-coded and not damaged.
- The foundation should be stable, and the ground shouldn’t be uneven.
Q.29: What are the major parts of the scaffolding?
Ans: Major parts of scaffolding are:
- Base Plate. (Distributed Load on ground)
- Sole Board. (Load on ground).
- Standards. (Vertical Supports).
- Ledgers. (Horizontal Support)
- Transoms. (Cross Beam Support)
- Intermediate transoms.
- Planks (Platform on which a load or worker stands)
- Toe-board. (Vertical Fall Protection of tools)
- Guard Rail. (Personal Fall Protection)
- Access Ladder. (To access the platform from the ground to the multi-level)
Part 2 – Oil and Gas Interview Questions and Answers
Q.30: What is the ladder safety angel and the reason behind that angel?
Ans: Ladder Safety angle is 1:4, this means 1 foot away at every 4 feet. The reasons behind this angle are to provide a safe climbing posture to the user and prevent falls.
Q.31: Name and type of clamp used for securing the ladder?
Ans: Spring load clamp or screw-type clamps are named as ladder safety clamps.
Q.32: What is tandem lifting?
Ans: Tandem lifting is when 2 carne involve in lifting a single load by using both cranes at same time. It is critical lifting, and it requires additional control than normal lifting.
Q.33: What are the engineering controls for/ on the crane?
Ans: Engineering Control for lifting is a safety device used in a crane
- Anti-two-block device. (Prevent hook block contact with boom)
- Anemometer.
- Safe Load Indicator.
- Hazards, lights, and alarm system.
- Boom angle and Boom Length indicator.
- Emergency stop system.
- External power system (Applicable in man basket operation).
Part 2 – Oil and Gas Interview Questions and Answers
Q.34: As a safety officer, if you see an injury, what will be your approach?
Ans: As a safety officer, if I come across an injury, I immediately stop the work, providing first aid if readily available on site, and call the emergency response team for emergency handling and medical support. Isolate the hazards to prevent further injury if any, and make sure not to change the injury scene, create the incident report, and conduct an investigation to find the root cause of the accident.
Q.35: What is a pyrophoric material?
Ans: Pyrophoric material is industrial waste accumulated in equipment, which is basically easily ignitable when in contact with air without any ignitable external source. Proper waste and control are required to handle the pyrophoric material.
Q.36: How is it formed/ produced?
Ans: It’s formed when contact iron or steel comes into contact with H2S in an oxygen-free environment, like in pipelines, vessels, etc. It produced iron sulfide.
Q.37: Being a safety officer, what will you check in heavy gas cutting activity?
Ans: Being a safety officer to check in heavy gas cutting activity.
- Valid Hot work open flame permit.
- JSA.
- Initial gas test and continuous gas monitoring.
- If the material has paint, then an LED test is required.
- Cylinder Inspected and Color coded.
- Hoses are inspected and have color-coded.
- Flashback arrestor and check valve installation and proper working.
- All open pits man hole covered with a fire blanket.
- The cutting location should be covered with a fire blanket.
- An authorized and competent person should do the job.
- A trained fire watch must be present at the site to monitor the activity with a fire extinguisher readily available.
- PPE (Face shield, Leather Gloves, Fr Clothing).
Part 2 – Oil and Gas Interview Questions and Answers
Q.38: How will you identify any hazardous substances?
Ans: Hazardous substances can be identified by the MSDS of that substance provided by the manufacturer.
- Checking labeling and hazards symbols on the container.
Q.39: How many contents are in SDS?
Ans: 16 numbers of contents in SDS.
Q.40: What will you check in a grinding machine?
Ans: A grinding machine is a very sensitive device and has associated hazards.
Some critical points to be ensured before any activity.
- Grinder’s physical condition.
- Inspection sticker.
- Color Code.
- The dead man’s switch must be working.
- Grinding wheel in good condition.
- Safeguards must be fitted and secured.
- Cutting or Griding disk must be less in RPM than grinding machine.
Conclusion
These oil and gas interview questions and answers are for HSE officers and anyone who wants to start their career in the oil and gas industry.