291. For gasoline, the flash point (<50°C) is determined by the Abel apparatus. Pensky-Marten’s apparatus. Saybolt chromometer. none of these. ✅ The correct answer is option A.
292. Liquefied petroleum Gas (LPG) used for the household cooking comprises mainly of propane & butane butane & ethane methane & ethane methane & carbon monoxide ✅ The correct answer is option A.
293. Crude oil produced by Indian oil fields are predominantly __________ in nature. paraffinic naphthenic asphaltic mixed base ✅ The correct answer is option C.
294. Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is 1 2 3 4 ✅ The correct answer is option D.
295. A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent. 4 10 18 26 ✅ The correct answer is option B.
296. Crude oil is pumped by a __________ pump. gear centrifugal screw reciprocating ✅ The correct answer is option B.
297. Pour point of a petrofuel is multiple of 3°F. multiple of 5°F. 5°C below the temperature at which oil ceases to flow. none of these. ✅ The correct answer is option C.
298. Maximum use of petroleum coke is in adsorption refining operation. fuel gas manufacture. carbon electrode manufacture. iron ore reduction. ✅ The correct answer is option C.
299. Good quality kerosene should have low smoke point. high smoke point. high aromatics content. low paraffins content. ✅ The correct answer is option B.
300. Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline. polymer unleaded casing head straight run ✅ The correct answer is option B.