Which of the following has the highest viscosity of all (at a given temperature) ?

Related Mcqs:

1. Which of the following has the lowest viscosity (at a given temperature) of all ?

   A. Naphtha B. Kerosene C. Diesel D. Lube oil...

2. Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about _______________ °C ?

   A. 50 B. 70 C. 90 D. 140...

3. ________________ treatment is done for appreciable improvement in viscosity index of lubricating oil?

   A. Acid B. Solvent extraction C. Alkali D. Clay...

4. 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...

5. 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...

6. With increase in density, the viscosity of petroleum products _____________________?

   A. Increases B. Decreases C. Remain same D. Either A. or B....

7. 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...

8. 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...

9. 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...

10. Which of the following has the highest flash point of all ?

    A. Diesel B. Kerosene C. Petrol D. Furnace oil...