A. Emulsification tendency
B. Water separation characteristics
C. Water content
D. Water absorbing capacity from atmosphere
Related Mcqs:
- Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its_________________?
A. Molecular weight
B. Aromatics content
C. Both A. & B.
D. Neither ‘a’ nor ‘b’ - Cetane number of a diesel fuel is the measure of its____________________?
A. Ignition delay
B. Smoke point
C. Viscosity
D. Oxidation stability - High aniline point of a petrofuel (say diesel) indicates that ________________?
A. It is highly aromatic in nature
B. It is highly paraffinic in nature
C. It has a very low diesel index
D. Its ignition quality is very poor - Pour point of a petrofuel is________________?
A. Multiple of 3°F
B. Multiple of 5°F
C. 5°C below the temperature at which oil ceases to flow
D. None of these - Diesel index (an alternative index for expressing the quality of diesel) is_______________?
A. Determined by using a test engine
B. Not related to aniline point
C. Equal to cetane number plus 3
D. All A., B. & C. - During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) ________________ with increase in the amount of water?
A. Decreases
B. Increases
C. Remains unchanged
D. Decreases linearly - Octane number of gasoline is a measure of its__________________?
A. Resistance to knock
B. Ignition delay
C. Ignition temperature
D. Smoke point - Reid vapour pressure of gasoline is the measure of its_________________?
A. Pour point
B. Cloud point
C. Vapour locking tendency
D. Carbon residue - Aniline point of the diesel is a measure of its ______________ content?
A. Aromatic
B. Paraffin
C. Olefin
D. Naphthene - Viscosity index of a lubricating oil_________________?
A. Is the measure of its flash point
B. Is the measure of variation of viscosity with temperature
C. Should be low
D. None of these
