37301. A fuel oil consists of 4 fractions A, B, C and D. Their molar compositions and vapour pressures are given below :The vapour pressure of the fuel oil will be __________ mm Hg.
37302. Which of the following is the most important property for a jet fuel ?
37303. Which parameter is used for the grading of paraffin waxes ?
37304. Which of the following has the minimum °API gravity of all?
37305. Higher pressure in the reforming reactor
37306. Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight.
37307. The main reaction in reforming is the
37308. Carbon percentage (by weight) in crude petroleum may be about
37309. Lane and Garton classification of petroleum is based on its
37310. With increase in the molecular weight of aromatic present in kerosene, its smoking tendency
37311. Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
37312. Clay treatment is used to remove
37313. Water separometer index (modified) (WSIM) of a petrofuel is the measure of its
37314. Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is
37315. Pressure & temperature maintained in catalytic cracking is about
37316. The normal size of circular sheet steel discs of an armature core of Generator is
37317. 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.
37318. Highest quality bitumen is produced from the __________ crude oil.
37319. Octane number (unleaded) of reformed gasoline may be upto
37320. Aniline point is a property of the
37321. Waxes present in petroleum products
37322. Which of the following has the lowest cetane number ?
37323. Ethyl mercaptan is a/an __________ compound.
37324. Which of the following is a non-regenerative fixed bed catalytic reforming process ?
37325. Aniline point of high speed diesel may be about __________ °C.
37326. Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners ?
37327. A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent.
37328. The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mmHg.
37329. Which of the following is not a sulphur compound present in petroleum ?
37330. Products drawn from the top to bottom of the crude oil distillation column has progressively increasing
37331. Asphalts are
37332. Smoke point of kerosene is the
37333. The conductivity of crude oil-water mixture depends on the
37334. Which of the following is not an important property of fuel oil/furnace oil ?
37335. Which of the followingis desirable in petrol (gasoline) but undesirable in kerosene ?
37336. Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.
37337. Cracking is
37338. The most important property for a jet fuel is its
37339. Aniline point of the diesel is a measure of its __________ content.
37340. Presence of sulphur in gasoline
37341. Which of the following additives improves the cetane number of diesel ?
37342. In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process.
37343. Which of the following rule is used for find the direction of induced e.m.f.?
37344. In catalytic alkylation, higher iso-butane to olefin ratio gives
37345. In case of liquid petrofuels, momentary combustion is observed at its
37346. Polymerisation
37347. Both asphalt and wax are produced by __________ base crude oils.
37348. Which one is preferred for aircraft engine ?
37349. Alkylation
37350. Which of the following has the maximum °API gravity of all?
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