MCQOPTIONS
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MCQOPTIONS
This section includes 281 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Percentage of straight run gasoline in a typical crude oil may be around |
| A. | 6 |
| B. | 18 |
| C. | 38 |
| D. | 52 |
| Answer» E. | |
| 2. |
Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds).%! |
| A. | 5 |
| B. | 25 |
| C. | 50 |
| D. | 100 |
| Answer» C. 50 | |
| 3. |
The octane number of aviation gasoline may be%! |
| A. | 79 |
| B. | 87 |
| C. | 97 |
| D. | >100 |
| Answer» E. | |
| 4. |
Increase in the specific gravity of petroleum products indicates%! |
| A. | Decrease in paraffin content |
| B. | Increase in thermal energy per unit weight |
| C. | Increase in aromatic content |
| D. | Higher H/C ratio |
| Answer» B. Increase in thermal energy per unit weight | |
| 5. |
Highest quality bitumen is produced from the __________ crude oil.%! |
| A. | Paraffinic |
| B. | Naphthenic |
| C. | Intermediate |
| D. | Mixed |
| Answer» C. Intermediate | |
| 6. |
*$_Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.? |
| A. | 50 |
| B. | 70 |
| C. | 90 |
| D. | 140 |
| Answer» D. 140 | |
| 7. |
*$_Asphalts are? |
| A. | Low molecular weight & low boiling point compounds present in petroleum |
| B. | Desirable in catalytic cracking feedstock, because they produce coke |
| C. | Readily oxidisable and form carbonaceous sludge |
| D. | All of the above |
| Answer» D. All of the above | |
| 8. |
*$_Which of the following is used as a solvent in deasphalting of petroleum products?? |
| A. | Furfural |
| B. | Propane |
| C. | Methyl ethyl ketone |
| D. | Liquid sulphur dioxide |
| Answer» C. Methyl ethyl ketone | |
| 9. |
*$_Choose the correct statement.? |
| A. | Coking tendency increases with increasing molecular weight |
| B. | Coking tendency decreases with increasing molecular weight |
| C. | Higher pressure enhances coke formation |
| D. | Coking is an exothermic reaction |
| Answer» B. Coking tendency decreases with increasing molecular weight | |
| 10. |
*$_Petroleum coke is commercially produced by the __________ process.? |
| A. | Hydrocracking |
| B. | Visbreaking |
| C. | Fluid catalytic cracking |
| D. | Delayed coking |
| Answer» E. | |
| 11. |
*$_Solvent used in Edeleanu process is? |
| A. | Furfural |
| B. | Propane |
| C. | Liquid SO‚ÇÇ |
| D. | Phenol |
| Answer» D. Phenol | |
| 12. |
*$_The order of preference for feedstock to a catalytic reformer is? |
| A. | Catalytic naphtha - coking naphtha - virgin naphtha |
| B. | Coking naphtha - virgin naphtha - catalytic naphtha |
| C. | Virgin naphtha - catalytic naphtha - coking naphtha |
| D. | Virgin naphtha - coking naphtha - catalytic naphtha |
| Answer» C. Virgin naphtha - catalytic naphtha - coking naphtha | |
| 13. |
*$_Cetane number of high speed diesel must be?? |
| A. | 30 |
| B. | 45 |
| C. | 75 |
| D. | 95 |
| Answer» C. 75 | |
| 14. |
*$_Older crude petroleum? |
| A. | Is light and better |
| B. | Gives more distillates |
| C. | Gives less tar |
| D. | All of the above |
| Answer» C. Gives less tar | |
| 15. |
*$_A good lubricant should have high? |
| A. | Viscosity index |
| B. | Volatility |
| C. | Pour point |
| D. | None of these |
| Answer» B. Volatility | |
| 16. |
*$_Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ?? |
| A. | Naphtha |
| B. | Petrol |
| C. | Kerosene |
| D. | Heavy fuel oil |
| Answer» E. | |
| 17. |
*$_Which of the following processes is used for the production of petroleum coke?? |
| A. | Stabilisation |
| B. | Visbreaking |
| C. | Cracking |
| D. | Reforming |
| Answer» D. Reforming | |
| 18. |
*$_1 centistoke is equal to __________ Redwood I seconds.? |
| A. | 1 |
| B. | 4.08 |
| C. | 0.408 |
| D. | 40.8 |
| Answer» C. 0.408 | |
| 19. |
*$_Name the endothermic reaction out of the following:? |
| A. | Catalytic cracking |
| B. | Hydrocracking |
| C. | Dehydrogeneration of naphthene to produce aromatic |
| D. | Catalytic polymerisation |
| Answer» D. Catalytic polymerisation | |
| 20. |
*$_Which of the following factors does not govern the mechanism of petroleum formation from organic sources?? |
| A. | PH of the soil |
| B. | Bacterial action |
| C. | Heat |
| D. | Pressure |
| Answer» B. Bacterial action | |
| 21. |
*$_Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'.? |
| A. | 1 |
| B. | 5 |
| C. | 15 |
| D. | 25 |
| Answer» C. 15 | |
| 22. |
*$_Cetane number of a diesel fuel is the measure of its? |
| A. | Ignition delay |
| B. | Smoke point |
| C. | Viscosity |
| D. | Oxidation stability |
| Answer» B. Smoke point | |
| 23. |
*$___________ base crude oil is also called asphaltic crude.? |
| A. | Paraffinic |
| B. | Naphthenic |
| C. | Mixed |
| D. | Aromatic |
| Answer» C. Mixed | |
| 24. |
*$_Products drawn from the top to bottom of the crude oil distillation column has progressively increasing? |
| A. | Boiling points |
| B. | Molecular weight |
| C. | C/H ratio |
| D. | All of the above |
| Answer» E. | |
| 25. |
*$_Petroleum is believed to have originated from __________ sources.? |
| A. | Vegetable |
| B. | Animal |
| C. | Both A & B |
| D. | Neither A nor B |
| Answer» D. Neither A nor B | |
| 26. |
*$_Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is? |
| A. | Propane |
| B. | Diethylene glycol |
| C. | Aqueous solution (10% water) of diethylene glycol |
| D. | Methyl ethyl ketone (MEK) |
| Answer» D. Methyl ethyl ketone (MEK) | |
| 27. |
*$_Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.? |
| A. | Unsaturated hydrocarbon content |
| B. | Calorific value |
| C. | Quantity of propane |
| D. | Quantity of butane |
| Answer» C. Quantity of propane | |
| 28. |
*$_LPG stands for? |
| A. | Liquid petroleum gas |
| B. | Liquified petrol gas |
| C. | Liquid petrol gas |
| D. | Liquefied petroleum gas |
| Answer» E. | |
| 29. |
*$_Increase in the specific gravity of petroleum products indicates? |
| A. | Decrease in paraffin content |
| B. | Increase in thermal energy per unit weight |
| C. | Increase in aromatic content |
| D. | Higher H/C ratio |
| Answer» B. Increase in thermal energy per unit weight | |
| 30. |
*$_The octane number of aviation gasoline may be? |
| A. | 79 |
| B. | 87 |
| C. | 97 |
| D. | >100 |
| Answer» E. | |
| 31. |
*$_Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds).? |
| A. | 5 |
| B. | 25 |
| C. | 50 |
| D. | 100 |
| Answer» C. 50 | |
| 32. |
*$_Highest quality bitumen is produced from the __________ crude oil.? |
| A. | Paraffinic |
| B. | Naphthenic |
| C. | Intermediate |
| D. | Mixed |
| Answer» C. Intermediate | |
| 33. |
*/*_Solvent used in duo-sol extraction for lube oil upgradation is a mixture of? |
| A. | Propane & phenol-cresol mixture |
| B. | Methyl ethyl ketone & glycol |
| C. | Phenol & furfural |
| D. | Propane & liquid sulphur dioxide |
| Answer» B. Methyl ethyl ketone & glycol | |
| 34. |
*/*_Solvent used in the deasphalting process is? |
| A. | Furfurol |
| B. | Phenol |
| C. | Propane |
| D. | Hexane |
| Answer» D. Hexane | |
| 35. |
*/*_Which parameter is used for the grading of paraffin waxes?? |
| A. | Specific gravity |
| B. | Melting point |
| C. | Viscosity |
| D. | Penetration number |
| Answer» D. Penetration number | |
| 36. |
*/*_Which is an anticing compound?? |
| A. | Amyl nitrate |
| B. | Alcohals |
| C. | Mercaptans |
| D. | Pyridine |
| Answer» C. Mercaptans | |
| 37. |
*/*_With increase in the molecular weight of aromatic present in kerosene, its smoking tendency? |
| A. | Increases |
| B. | Decreases |
| C. | Remains same |
| D. | Is unpredictable |
| Answer» B. Decreases | |
| 38. |
*/*_Liquefied petroleum Gas (LPG) used for the household cooking comprises mainly of? |
| A. | Propane & butane |
| B. | Butane & ethane |
| C. | Methane & ethane |
| D. | Methane & carbon monoxide |
| Answer» B. Butane & ethane | |
| 39. |
*/*_Tanks used for the storage of petroleum products (which are inflammable) should be painted with a __________ paint.? |
| A. | Black |
| B. | White |
| C. | Red |
| D. | Yellow |
| Answer» C. Red | |
| 40. |
*/*_Octane number (unleaded) of gasoline produced by isomerisation of butane may be about? |
| A. | 45 |
| B. | 55 |
| C. | 70 |
| D. | 90 |
| Answer» D. 90 | |
| 41. |
*/*_Molecular weight of crude petroleum may be around? |
| A. | 50 |
| B. | 250 |
| C. | 1500 |
| D. | 5000 |
| Answer» D. 5000 | |
| 42. |
*/*_Which of the following gasolines (unleaded) has the least octane number?? |
| A. | Catalytically cracked gasoline |
| B. | Straight run gasoline |
| C. | Catalytically reformed gasoline |
| D. | Polymer gasoline |
| Answer» C. Catalytically reformed gasoline | |
| 43. |
*/*_Which of the followingis desirable in petrol (gasoline) but undesirable in kerosene?? |
| A. | Paraffins |
| B. | Aromatics |
| C. | Mercaptans |
| D. | Naphthenic acid |
| Answer» D. Naphthenic acid | |
| 44. |
*/*_Isomerisation converts the __________ tot-paraffins.? |
| A. | Paraffins |
| B. | Olefins |
| C. | Naphthenes |
| D. | None of these |
| Answer» B. Olefins | |
| 45. |
*/*_Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is? |
| A. | More than 100 |
| B. | Round about 100 |
| C. | Between 50 and 100 |
| D. | Less than 25 |
| Answer» B. Round about 100 | |
| 46. |
*/*_Performance number of a liquid fuel is related to its? |
| A. | Wax content |
| B. | Spontaneous ignition temperature |
| C. | Knocking tendency |
| D. | Sulphur content |
| Answer» C. Knocking tendency | |
| 47. |
*/*_Which of the following processes consumes hydrogen?? |
| A. | Fluid catalytic cracking |
| B. | Visbreaking |
| C. | Propane deasphalting |
| D. | None of these |
| Answer» B. Visbreaking | |
| 48. |
*/*_Which is the most effective catalyst used in catalytic cracking of petroleum products?? |
| A. | Iron oxide |
| B. | Nickel |
| C. | Vanadium pentoxide |
| D. | Zeolite |
| Answer» E. | |
| 49. |
*/*_Catalyst used in the isomerisation is? |
| A. | Aluminium chloride |
| B. | Alumina |
| C. | Nickel |
| D. | Phosphoric acid |
| Answer» B. Alumina | |
| 50. |
*/*_Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).? |
| A. | 5-10 |
| B. | 30-80 |
| C. | 150-250 |
| D. | 350-400 |
| Answer» C. 150-250 | |