chemical engineering petroleum refinery engineering MCQs – Page 15

Practise multiple-choice questions from chemical engineering petroleum refinery engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering petroleum refinery engineering Mcqs

281. Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses _______________ as catalyst?
0

A. Bauxite

B. All A., B. & C.

C. Activated clay

D. Fullers earth

282. Choose the correct statement ?
0

A. The aromatics have lower octane number than naphthenes with same number of carbon atoms

B. Octane number of i-octane is zero

C. Octane number of paraffins increases with increasing number of carbon atoms

D. Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms

283. The condensate obtained on compression of wet natural gas is termed as__________________?
0

A. None of these

B. Natural gasoline

C. Liquefied natural gasoline

D. Liquid natural gas

284. Operating temperature and pressure in catalytic reforming is about_____________?
0

A. 5-10 kgf/cm2 & 150 250C

B. 50 75 kgf/cm2 & 600 800C

C. 1-5 Kgf/cm2 & 200C

D. 15-45 Kgf/cm2 & 450-550C

285. Pick out the additive property of lube oil out of following ?
0

A. API gravity

B. Specific gravity

C. Flashpoint

D. Viscosity

286. Which of the following has the maximum API gravity of all ?
0

A. Kerosene

B. Petrol

C. Furnace oil

D. Diesel

287. Which is the most undesirable component in kerosene ?
0

A. Naphthenes

B. n-paraffins

C. Aromatics

D. i-paraffins

288. Catalyst used in the catalytic cracking is_____________________?
0

A. Silica-alumina

B. Silica gel

C. Vanadium pentoxide

D. Nickel

289. Catalyst used in the isomerisation is_______________________?
0

A. Nickel

B. Alumina

C. Aluminium chloride

D. Phosphoric acid

290. Octane numbers of motor gasoline used in India and America are respectively________________?
0

A. 87 & 94

B. 94 & 100

C. 94 & 87

D. 83 & 100

291. Petroleum is believed to have originated from _______________ sources?
0

A. Vegetable

B. Animal

C. Both A. and B.

D. Neither A. nor B.

292. Liquefied petroleum Gas (LPG) used for the household cooking comprises mainly of _______________?
0

A. Propane & butane

B. Methane & ethane

C. Butane & ethane

D. Methane & carbon monoxide

293. LSHS is a type of furnace oil, which_____________________?
0

A. Stands for low sulphur heavy stock

B. Is more viscous than high viscosity furnace oil (HVFO)

C. All A., B. and C.

D. Is an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%)

294. 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?
0

A. 1000-1500

B. 600-750

C. 2000-2500

D. 250-350

295. Operating condition in the electrical dehydrators for crude oil is about____________________?
0

A. 1 atm. & 110 C

B. 20 kgf/cm2 & 110C

C. 50 atm. and 150C

D. 6.5 kgf/Cm2 & 95C

296. In the atmospheric pressure crude distillation, the content of _____________ from lighter fraction to heavier ones?
0

A. Sulphur increases

B. Nitrogen decreases

C. None of these

D. Sulphur decreases

297. Which of the following fractions of a crude oil will have the maximum gravity API (i.e. API) ?
0

A. Vacuum gas oil

B. Atmospheric gas oil

C. Gasoline

D. Diesel

298. In catalytic cracking process, olefins crack ______________ times faster than in thermal cracking process?
0

A. 200-300

B. 1000-10000

C. 10

D. 100

299. Stabilisation of gasoline (petrol) means ___________________?
0

A. Increasing its vapour pressure

B. Improving its lead susceptibility

C. Increasing its oxidation stability

D. Removal of dissolved gases from it

300. Main constituent of natural gas is___________________?
0

A. C2H4

B. C2H2

C. CH4

D. C2H6

Previous Next

Showing 281 to 300 of 321 mcqs