A. Pour point
B. Cloud point
C. Vapour locking tendency
D. Carbon residue
Related Mcqs:
- True vapour pressure of a petroleum fraction ________________ Reid vapour pressure?
A. Is less than
B. Is more than
C. Is same as
D. May be either more or less than - 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________________?
A. 4
B. 3
C. 2
D. 1 - Higher vapour pressure of gasoline indicates _________________?
A. Low flash point
B. High breathing loss
C. Both A. and B.
D. Neither A. nor B. - Gasoline extracted from natural gas (by compression and cooling) is called the ___________ gasoline?
A. Polymer
B. Unleaded
C. Casing head
D. Straight run - Octane number of gasoline is a measure of its__________________?
A. Resistance to knock
B. Ignition delay
C. Ignition temperature
D. Smoke point - 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’ - Which of the following is desirable in diesel and kerosene but is undesirable in gasoline ?
A. Aromatics
B. Mercaptans
C. Paraffins
D. Naphthenic acid - Gasoline yield in catalytic reforming of naphtha may be about _________________ percent by weight?
A. 85
B. 65
C. 50
D. 98 - Which of the following gasoline (unleaded) has the least octane number ?
A. Catalytically cracked gasoline
B. Straight run gasoline
C. Catalytically reformed gasoline
D. Polymer gasoline - The colour of gasoline is an indication of its _________________?
A. Octane number
B. Lead susceptibility
C. Gum forming tendency & thoroughness of refining
D. None of these
