Flash point of diesel/kerosene (>50°C) is determined by the_______________?

Related Mcqs:

1. Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than ________________ mg/kg of kerosene?

   A. 1
   B. 20
   C. 100
   D. 500

2. Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ?

   A. Naphtha
   B. Petrol
   C. Kerosene
   D. Heavy fuel oil

3. 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

4. Which of the following is desirable in diesel and kerosene but is undesirable in gasoline ?

   A. Aromatics
   B. Mercaptans
   C. Paraffins
   D. Naphthenic acid

5. Flash point of atmospheric distillation residue is determined by ______________ apparatus?

   A. Pensky-Martens (closed cup type)
   B. Abel
   C. Cleveland (open cup type)
   D. None of these

6. Flash point of an oil is determined by the _____________________?

   A. Pensky Martens apparatus
   B. Ramsbottom apparatus
   C. Saybolt viscometer
   D. Conradson apparatus

7. For gasoline, the flash point (<50°C) is determined by the______________________?

   A. Abel apparatus
   B. Pensky-Marten’s apparatus
   C. Saybolt chromometer
   D. None of these

8. 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

9. 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.

10. Flash point of motor gasoline may be around ______________ °C?

    A. 10
    B. 45
    C. 100
    D. 150