Rock and Fluid Properties Lab – MCQs 50 Score: 0 Attempted: 0/50 Subscribe 1. The property of a rock that measures the fraction of void space is: (A) Permeability (B) Porosity (C) Compressibility (D) Viscosity 2. Which type of porosity includes only connected pore spaces? (A) Effective porosity (B) Total porosity (C) Isolated porosity (D) Residual porosity 3. Porosity is usually expressed in: (A) m/s (B) % (percentage) (C) g/cm³ (D) Darcy 4. The property that measures the ability of a rock to transmit fluids is: (A) Density (B) Porosity (C) Permeability (D) Wettability 5. The standard unit of permeability is: (A) Pascal (B) Darcy (C) Newton (D) Ohm 6. Gas permeability measured without liquid saturation is called: (A) Relative permeability (B) Effective permeability (C) Absolute permeability (D) Apparent permeability 7. Relative permeability curves are measured in: (A) Core flooding experiments (B) PVT cells (C) Mud balance (D) Viscometer 8. Which rock property is most affected by grain sorting? (A) Permeability (B) Density (C) Viscosity (D) Compressibility 9. Which of the following is NOT a rock property? (A) Porosity (B) Permeability (C) Viscosity (D) Compressibility 10. Archimedes’ principle is commonly used in labs to measure: (A) Rock density and porosity (B) Permeability (C) Viscosity (D) Wettability 11. Bulk volume of a rock is: (A) Grain volume only (B) Grain + pore volume (C) Pore volume only (D) Residual volume 12. Which porosity accounts for both connected and isolated pores? (A) Effective porosity (B) Total porosity (C) Secondary porosity (D) Residual porosity 13. A gas expansion method is used to measure: (A) Permeability (B) Porosity (C) Compressibility (D) Viscosity 14. The ease with which one fluid displaces another in porous media depends on: (A) Grain density (B) Wettability (C) Bulk volume (D) Porosity 15. Contact angle measurements are used to determine: (A) Viscosity (B) Density (C) Wettability (D) Porosity 16. Oil-wet rocks usually show: (A) Higher water relative permeability (B) Lower water relative permeability (C) Zero water saturation (D) No capillary pressure 17. Which property is defined as resistance of a fluid to flow? (A) Density (B) Compressibility (C) Viscosity (D) Porosity 18. The SI unit of viscosity is: (A) Pascal-second (Pa·s) (B) Darcy (C) g/cm³ (D) Joule 19. API gravity is related to: (A) Oil density (B) Rock porosity (C) Gas permeability (D) Formation compressibility 20. The higher the API gravity of crude oil: (A) The lighter the oil (B) The heavier the oil (C) The higher the viscosity (D) The lower the porosity 21. Capillary pressure is a function of: (A) Pore size and wettability (B) Oil viscosity only (C) Rock density only (D) Fluid compressibility 22. Which laboratory device is commonly used to measure viscosity? (A) Porosimeter (B) Viscometer (C) Permeameter (D) Core holder 23. Gas deviation factor (z-factor) is measured to account for: (A) Real gas behavior (B) Rock compressibility (C) Porosity changes (D) Relative permeability 24. Oil formation volume factor (Bo) relates: (A) Reservoir oil volume to surface oil volume (B) Water volume to oil volume (C) Gas volume to liquid volume (D) Pore volume to grain volume 25. Compressibility of reservoir rock is important for: (A) Porosity changes with pressure (B) Viscosity measurement (C) Wettability determination (D) Relative permeability 26. The unit of rock compressibility is: (A) Pa·s (B) 1/Pa (C) Darcy (D) kg/m³ 27. Irreducible water saturation (Swirr) is: (A) Minimum water saturation where oil flows (B) Maximum water content in rock (C) Water produced with oil (D) Residual porosity 28. Which laboratory test measures capillary pressure curves? (A) Mercury injection test (B) Viscometer test (C) PVT analysis (D) Permeameter test 29. Core plugs used in rock property labs are usually: (A) Cylindrical (B) Cubic (C) Spherical (D) Conical 30. Gas permeability measured at low pressure may deviate due to: (A) Klinkenberg effect (B) Archimedes’ principle (C) Boyle’s law (D) Darcy’s law 31. Which property determines how much hydrocarbon a rock can store? (A) Permeability (B) Porosity (C) Density (D) Wettability 32. Laboratory core cleaning is performed before measuring: (A) Porosity and permeability (B) Viscosity (C) Wettability (D) Compressibility 33. Relative permeability to oil decreases when: (A) Water saturation increases (B) Porosity increases (C) Grain size increases (D) Wettability improves 34. Which rock type usually has the lowest porosity? (A) Sandstone (B) Limestone (C) Shale (D) Dolomite 35. Which fluid property affects reservoir mobility ratio? (A) Density (B) Viscosity (C) Compressibility (D) Porosity 36. Gas viscosity is generally: (A) Lower than liquid viscosity (B) Higher than liquid viscosity (C) Equal to liquid viscosity (D) Independent of temperature 37. The density of crude oil is usually reported in: (A) g/cm³ (B) Darcy (C) Pascal (D) % 38. Residual oil saturation (Sor) means: (A) Oil left in rock after waterflooding (B) Oil produced at maximum rate (C) Oil measured in core before cleaning (D) Oil density in PVT cells 39. Which property decreases with increasing temperature? (A) Oil viscosity (B) Gas compressibility (C) Rock porosity (D) Permeability 40. Wettability strongly influences: (A) Capillary pressure and relative permeability (B) Viscosity of oil (C) Rock density (D) API gravity 41. Which method is used to determine grain density? (A) Pycnometer method (B) Viscometer (C) Core flooding (D) Mercury injection 42. Connate water saturation is also called: (A) Irreducible water saturation (B) Residual water saturation (C) Capillary water saturation (D) Critical water saturation 43. The typical range of porosity in sandstones is: (A) 1–5% (B) 5–10% (C) 10–30% (D) 40–60% 44. Which property is most critical for oil recovery estimation? (A) Porosity and permeability (B) Grain density (C) Compressibility (D) Wettability only 45. The viscosity of water at standard conditions is approximately: (A) 0.1 cP (B) 1 cP (C) 10 cP (D) 100 cP 46. PVT analysis is conducted to determine: (A) Fluid phase behavior (B) Rock porosity (C) Grain density (D) Core permeability 47. A high gas–oil ratio (GOR) indicates: (A) Gas condensate reservoir behavior (B) Heavy oil reservoir (C) High water cut (D) Poor permeability 48. Surface tension is a key factor in: (A) Capillary pressure (B) Porosity (C) Density (D) Compressibility 49. Core samples are often preserved in labs to: (A) Maintain original fluid saturation (B) Increase permeability (C) Decrease porosity (D) Change wettability 50. Rock and fluid properties are essential in: (A) Reservoir simulation and production forecasting (B) Refining operations only (C) Offshore platform design only (D) Drilling bit design only FOUNDATIONAL SUBJECTS (Year 1 – Year 2)Engineering Mechanics (Statics & Dynamics) – MCQsFluid Mechanics – MCQsThermodynamics – MCQsComputer Programming (e.g., MATLAB, Python) – MCQsIntroduction to Engineering – MCQsGeology for Engineers – MCQsTechnical Communication – MCQs CORE PETROLEUM ENGINEERING SUBJECTS (Year 2 – Year 4)Introduction to Petroleum Engineering – MCQsPetroleum Geology – MCQsDrilling Engineering – MCQsReservoir Engineering – MCQsProduction Engineering – MCQsPetroleum Fluid Properties – MCQsWell Logging and Formation Evaluation – MCQsPetroleum Economics – MCQsPetroleum Refining and Processing – MCQs Natural Gas Engineering – MCQsEnhanced Oil Recovery (EOR) – MCQsWell Testing – MCQsReservoir Simulation – MCQsDrilling Fluids and Cementing – MCQsOffshore Petroleum Engineering – MCQsHealth, Safety and Environment (HSE) – MCQsPetroleum Project Management – MCQsCorrosion Engineering – MCQsArtificial Lift Techniques – MCQsPetrophysics – MCQs LABORATORIES & PRACTICALS (Theory-based MCQs can be made from these)Drilling Fluids Lab – MCQsCore Analysis Lab – MCQsReservoir Simulation Lab – MCQsRock and Fluid Properties Lab – MCQsWell Logging Lab – MCQs ELECTIVES (Optional/Advanced)Energy Transition and Sustainability – MCQsUnconventional Resources (Shale, Tight Gas, etc.) – MCQsData Analytics in Petroleum Engineering – MCQsGeographic Information Systems (GIS) – MCQsPetroleum Law and Policy – MCQsPipeline Engineering – MCQsRenewable Energy Integration – MCQs