A. Silica-magnesia
B. Silica-alumina
C. Bentonite clays
D. All A., B. and C.
Correct Answer: D. All A., B. and C. ✔
Last Updated: March 02, 2019
Related MCQs
- Aniline point is the __________?
- Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatization by liquid SO2 extraction (Edeleanu process), its smoke point may become __________ mm?
- Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm?
- The most commonly used feed stock for the reforming reactor is __________?
- Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a ‘salty crude’ ?
- Octane number of gasoline is a measure of its__________?
- In Hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen__________?
- Alkylation__________?
- Illuminating characteristics of kerosene is expressed by its__________?
- Pressure maintained in the high pressure primary tower of a three stage crude oil distillation system is about __________ kg/cm2?
- Crude oil produced by Indian oil fields are predominantly __________ in nature?
- Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol?
- Which of the following has the lowest flash point of all ?
- High aniline point of diesel indicates that, it __________?
- Flash point of motor gasoline may be around __________ °C?
- Which of the following has the highest viscosity of all (at a given temperature) ?
- Viscosity index of a lubricating oil__________?
- Fuel oil is subjected to visbreaking to reduce its__________?
- Both asphalt and wax are produced by __________ base crude oils?
- __________ converts n-paraffins to i-paraffins ?
- A petroleum well is called ‘dry’, if it contains __________?
- In solutizer sweetening process, solutizer solution used is__________?
- Solvent used in the deasphalting process is __________?
- Cetane number of high speed diesel must be ≥__________?
- Boiling range of motor gasoline is an indication of the __________?
- Furfural solvent extraction is used for upgrading (by dissolving aromatics) ?
- Which of the following has the highest octane number ?
- Which of the following processes consumes hydrogen ?
- Catalyst used in catalytic reforming is__________?
- Penetration test determines the __________ of the grease?
- In case of liquid petrofuels, momentary combustion is observed at its __________?
- __________ is not an important refinery process for upgrading the quality of lubricating oil ?
- Petroleum __________ ?
- Which of the following contains maximum sulphur ?
- The colour of gasoline is an indication of its __________?
- In petroleum refining, the process used for conversion of hydrocarbons to aromatics is__________?
- Isomerisation converts the __________ tot-paraffins?
- Naphtha yield in straight run distillation of crude oil may be about __________ percent?
- Older crude petroleum __________?
- Pick out the undesirable property for a solvent meant for dewaxing of lube oil ?
- In sweetening process, solutizer agent used with caustic alkali is__________?
- Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is__________?
- Which of the following tests is not done for transformer oil ?
- Petrolatum is__________?
- Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene?
- Most widely used solvent for dewaxing is__________?
- Which of the following is not a sulphur compound present in petroleum ?
- Pour point of a petrofuel is__________?
- Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about __________ of that of water (i.e. 1 gm/c.c)?
- Higher pressure in the reforming reactor__________?
- __________ base crude oil is also called asphaltic crude?