Smoke volatility index is equal to smoke point plus______________________?

Related Mcqs:

1. Smoke point of a test sample of kerosene is found to be 15 mm. On removal of ________________ from it, the smoke point rises to 25 mm?

   A. n-paraffins
   B. Olefins
   C. Aromatics
   D. None of these

2. Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatization by liquid SO2 extraction (Edeleanu process), its smoke point may become _______________________ mm?

   A. 5
   B. 10
   C. 25
   D. 100

3. Smoke point of a good burning kerosene may be around _______________ mm?

   A. 0-5
   B. 20-25
   C. 60-75
   D. 100-120

4. Smoke point of kerosene is the_______________?

   A. Time after which smoking starts on burning
   B. Temperature at which smoking starts
   C. Maximum height of flame (in mm) without causing smoking, when burnt in a standard lamp
   D. None of these

5. Smoke point of kerosene expresses its__________________?

   A. Burning characteristics
   B. Luminosity characteristics
   C. Aromatic content directly
   D. Lamp wick wetting characteristics

6. 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.

7. 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’

8. Water separometer index (modified) (WSIM) of a petrofuel is the measure of its____________________?

   A. Emulsification tendency
   B. Water separation characteristics
   C. Water content
   D. Water absorbing capacity from atmosphere

9. 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

10. Diesel index is defined as_________________?

    A. (°API) × (Aniline Point, °F)/100
    B. (°API) × (Aniline Point, °C)/100
    C. (°API) × (100)/Aniline Point, °F
    D. (°API) × (100)/Aniline Point, °C