2805. The reservoir rock containing petroleum has
low porosity
high permeability
high porosity
both (b) and (c)
✅ The correct answer is option D.
2811. The terminology used for the bottom most product from the vacuum crude distillation unit is
residual crude
residuum
reduced crude
petrolatum
✅ The correct answer is option B.
2822. A multigrade lubricating oil means an oil having high
viscosity index
viscosity
aniline point
flash point
✅ The correct answer is option A.
2826. Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).
5-Oct
30-80
150-250
350-400
✅ The correct answer is option B.
2830. Which of the following has the highest flash point of all ?
Diesel
Kerosene
Petrol
Furnace oil
✅ The correct answer is option D.
2797. Petroleum deposits are detected by the.
oil seepage at the surface of the earth.
measuremet of density, elasticity and magnetic & electric properties of the rock in the crust of the earth.
age & nature of rocks inside the crust of the earth.
all (a), (b) and (c)
✅ The correct answer is option D.
2802. In solutizer sweetening process, solutizer solution used is
methanol in Unisol process.
naphthenic acid in Mercapsol process.
both (a) and (b).
neither (a) nor (b).
✅ The correct answer is option C.
2807. In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction
heavy distillates
intermediate distillates
light ends
residues
✅ The correct answer is option A.
2814. Increase in the specific gravity of petroleum products indicates
decrease in paraffin content.
increase in thermal energy per unit weight.
increase in aromatic content.
higher H/C ratio.
✅ The correct answer is option A.