A. 65
B. 75
C. 85
D. 95
Related Mcqs:
- Hydrogen percentage (by weight) in crude petroleum may be about __________________?
A. 5
B. 15
C. 25
D. 35 - Molecular weight of crude petroleum may be around________________?
A. 50
B. 250
C. 1500
D. 5000 - Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of ______________ kcal/kg?
A. 600-750
B. 250-350
C. 1000-1500
D. 2000-2500 - Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about_________________?
A. 0.1
B. 1
C. 2.5
D. 3.5 - Paraffin base crude oil as compared to asphalt base crude gives___________________?
A. Higher yield of straight run gasoline
B. Higher octane number gasoline
C. Lower viscosity index lube oil
D. Poorer yield of lube oil - Sour crude means the ________________ bearing crude?
A. Asphalt
B. Sulphur compounds
C. Wax
D. Nitrogen compounds - 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 - _____________ base crude oil is also called asphaltic crude?
A. Paraffinic
B. Naphthenic
C. Mixed
D. Aromatic - Crude oils containing more than ____________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a ‘salty crude’ ?
A. 1
B. 5
C. 15
D. 25 - _____________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation?
A. Magnesium
B. Potassium
C. Calcium
D. Sodium
