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.Management Sciences
Category: Petroleum Refinery Engineering
LSHS is a type of furnace oil, which_____________________?
A. Is more viscous than high viscosity furnace oil (HVFO)
B. Stands for low sulphur heavy stock
C. Is an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%)
D. All A., B. and C.
Hydrocracking employs ___________________?
A. High pressure & temperature
B. Low pressure & temperature
C. High pressure and low temperature
D. High temperature and low pressure
Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octane is chemically known as ___________________?
A. α-methyl naphthalene
B. 2-2-4 tri methyl pentane
C. 1, 3 butadiene
D. Tetra methyl ethylene
Visbreaking process is used mainly for making_________________?
A. High cetane diesel
B. High octane gasoline
C. Fuel oil
D. Smoke free kerosene
In catalytic alkylation, higher iso-butane to olefin ratio gives_________________?
A. Low final boiling point product
B. Higher yield
C. Both A. and B.
D. Neither A. nor B.
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
Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?
A. Dehydrogenation of Naphthene
B. Dehydrogenation of lower paraffins
C. Dehydrocyclization of higher paraffins
D. Isomerisation of paraffins
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
Research octane number refers to the___________________?
A. Low octane number motor fuels
B. High octane number motor fuels
C. High octane number aviation fuels
D. Unleaded motor fuels
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