Illuminating characteristics of kerosene is expressed by its_____________?

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. Good quality kerosene should have__________________?

   A. Low smoke point B. High smoke point C. High aromatics content D. Low paraffins content...

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

   A. Abel apparatus B. Pensky-Martens apparatus C. Saybolt chromometer D. None of these...

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

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

6. A typical yield of kerosene in straight run distillation of crude oil may be about __________________ percent?

   A. 4 B. 10 C. 18 D. 26...

7. With increase in the molecular weight of aromatic present in kerosene, its smoking tendency ?

   A. Increases B. Decreases C. Remain same D. Is unpredictable...

8. 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...

9. 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...

10. Which is the most desirable component of a good quality kerosene ?

    A. i-paraffins B. Aromatics C. n-paraffins D. Naphthenes...