A. Naphtha
B. Fuel oil
C. Light diesel oil
D. Petrol
Related Mcqs:
- Which of the following has the lowest viscosity (at a given temperature) of all ?
A. Naphtha
B. Kerosene
C. Diesel
D. Lube oil - Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about _______________ °C ?
A. 50
B. 70
C. 90
D. 140 - ________________ treatment is done for appreciable improvement in viscosity index of lubricating oil?
A. Acid
B. Solvent extraction
C. Alkali
D. Clay - 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 - 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 - With increase in density, the viscosity of petroleum products _____________________?
A. Increases
B. Decreases
C. Remain same
D. Either A. or B. - Higher viscosity of lubricating oil usually signifies_______________________?
A. Lower Reid vapour pressure
B. Higher acid number
C. Higher flash point and fire point
D. Lower flash point and fire point - Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of ____________________?
A. Thermal cracking
B. Gum formation
C. Coking
D. Discoloration - Equal volumes of aniline and diesel oil when mixed at room temperature (during summer) was found to be completely miscible. It means that the aniline point of the diesel is _______________ the room temperature?
A. More than
B. Less than
C. Same as
D. Either more or less; depends on the room temperature - Which of the following has the highest flash point of all ?
A. Diesel
B. Kerosene
C. Petrol
D. Furnace oil
