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

Related Mcqs:

1. 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...

2. Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners ?

   A. PCM B. Tar C. Light diesel oil D. Low viscosity furnace oil...

3. Which of the following is not an important property of fuel oil/furnace oil ?

   A. Sulphur content B. Viscosity C. Aniline point D. Flash point...

4. 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...

5. Crude oil produced by Indian oil fields are predominantly _______________ in nature?

   A. Paraffinic B. Naphthenic C. Asphaltic D. Mixed base...

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

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

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. Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about_________________?

   A. 0.1 B. 1 C. 2.5 D. 3.5...

9. LSHS is a type of furnace oil, which_____________________?

   A. Is more viscous than high viscosity furnace oil (HVFO) B. Stands for low sulphur heavy stock C. Is an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%) D. All A., B. and C....

10. 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...