A. 0-5
B. 20-25
C. 60-75
D. 100-120
Related Mcqs:
- 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 - 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 - 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 - 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 - Smoke point of kerosene expresses its__________________?
A. Burning characteristics
B. Luminosity characteristics
C. Aromatic content directly
D. Lamp wick wetting characteristics - Smoke volatility index is equal to smoke point plus______________________?
A. 0.42 × (% distilled at 204°C)
B. 5 mm
C. 0.84 × (% distilled at 204°C)
D. 10 mm approximately - Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses _______________ as catalyst?
A. Bauxite
B. Fuller’s earth
C. Activated clay
D. All A., B. & C. - A typical yield of kerosene in straight run distillation of crude oil may be about __________________ percent?
A. 4
B. 10
C. 18
D. 26 - Which of the following is desirable in petrol (gasoline) but undesirable in kerosene ?
A. Paraffins
B. Aromatics
C. Mercaptans
D. Naphthenic acid - Illuminating characteristics of kerosene is expressed by its_____________?
A. Smoke point
B. Aniline point
C. Luminosity number
D. Aromatic content
