Description : Which of the following gasoline (unleaded) has the least octane number? (A) Catalytically cracked gasoline (B) Straight run gasoline (C) Catalytically reformed gasoline (D) Polymer gasoline
Last Answer : (B) Straight run gasoline
Description : Casing head gasoline is the liquid (A) Butane (B) Propane (C) Natural gas (D) Gasoline separated from wet natural gas by compression
Last Answer : (A) Butane
Description : The most commonly used feed stock for the reforming reactor is (A) Heavy fuel oil (B) Residuum (C) Straight run gasoline (D) Casing head gasoline
Last Answer : (C) Straight run gasoline
Description : Which of the following categories of gasoline has the highest lead susceptibility? (A) Straight run gasoline (B) Platinum reformed gasoline (C) Catalytical cracked gasoline (D) Polymer gasoline
Last Answer : (A) Straight run gasoline
Description : Octane number (unleaded) of reformed gasoline may be upto (A) 60 (B) 70 (C) 80 (D) 90
Last Answer : (D) 90
Description : Octane number (unleaded) of gasoline produced by isomerisation of butane may be about (A) 45 (B) 55 (C) 70 (D) 90
Last Answer : (C) 70
Description : Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst. (A) Bauxite (B) Fuller’s earth (C) Activated clay (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : . The condensate obtained on compression of wet natural gas is termed as (A) Liquefied natural gasoline (B) Natural gasoline (C) Liquid natural gas (D) None of these
Last Answer : (B) Natural gasoline
Description : Feed for reforming is generally (A) Naphtha or straight run gasoline (B) Reduced crude (C) Vacuum gas oil
Last Answer : (A) Naphtha or straight run gasoline
Description : Why is gasoline still called "unleaded?"?
Last Answer : Nostalgia? Takes me back to the mid 70s. We had a Ford in he White House, and still no gas.
Description : What does it cost a refinery to produce just one gallon of regular unleaded gasoline?
Last Answer : According to DW-World the price of Petrol in Germany in 2007 was made up as follows: 0.4 €cent per litre for getting crude oil out of the ground. 0.1 €cent per litre for getting across the Suez ... That is about 6.6 dollars per gallon for you Americans. (assuming I did not screw up the conversion)
Description : How long is unleaded gasoline good for?
Last Answer : Gasoline oxidizes over time, which produces gums. These turn into a kind of varnish that builds up on engine parts during combustion, and will eventually impair efficiency. How quickly that oxidation happens ... the gums that have formed. You can sometimes see clumps of the gums in very oxidized gas
Description : Clay treatment of petroleum products (A) Decolorizes & stabilises cracked gasoline (B) Desulphurise straight run gasoline & kerosene (C) Adsorb arsenic from feedstock to catalytic reforming (D) All (A), (B) & (C)
Description : Paraffin base crude oil as compared to asphalt base crude gives (A) Higher yield of straight run gasoline (B) Higher octane number gasoline (C) Lower viscosity index lube oil (D) Poorer yield of lube oil
Last Answer : (A) Higher yield of straight run gasoline
Description : Percentage of straight run gasoline in a typical crude oil may be around (A) 6 (B) 18 (C) 38 (D) 52
Last Answer : (D) 52
Description : Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic (A) Cracking (B) Polymerisation (C) Reforming (D) Isomerisation
Last Answer : (C) Reforming
Description : Power alcohol as compared to straight run gasoline has lower (A) Calorific value (B) Octane number (C) Specific gravity (D) Viscosity
Last Answer : (A) Calorific value
Description : The molecular structure of the straight-run gasoline is changed by a) reforming b) refining c) cracking d) boiling
Last Answer : Answer: a Explanation: The molecular structure of the straight-run gasoline is changed by reforming and hydrocarbons are decomposed into smaller hydrocarbons by cracking.
Description : Which one of the following the maximum effect on cooling tower performance A Fill media B Drift C Lourvers D Casing
Last Answer : A Fill media
Description : Volute type of casing is provided in a centrifugal pump to (A) Convert velocity head to pressure head (B) Convert pressure head to velocity head (C) Reduce the discharge fluctuation (D) Increase the discharge
Last Answer : (D) Increase the discharge
Description : Design of the casing of centrifugal pump should be such as to minimise the (A) Back flow through impeller (B) Loss of kinetic head (C) Loss of static head (D) None of these
Last Answer : (B) Loss of kinetic head
Description : Good design of the casing of a centrifugal pump aims at minimising the (A) Cavitation (B) Frictional losses (C) Kinetic energy loss (D) Static head
Last Answer : Option C
Description : Which of the following is not the function of a volute casing provided in a centrifugal pump? (A) To reduce the head loss in discharge (B) To increase the pump efficiency (C) To collect liquid ... and to transmit it to the delivery pipe at constant velocity (D) To increase the pump discharge rate
Last Answer : Option D
Description : Claude process of gas liquefaction employs (A) Merely compression of gas beyond its critical pressure (B) Joule-Thomson expansion cooling (C) Heat exchange with colder stream (D) Adiabatic expansion against a piston or in a turbine
Last Answer : (D) Adiabatic expansion against a piston or in a turbine
Description : Which one of the following statements is correct? A. Reciprocating compressors are used to supply large quantities of air at a lower pressure ratio B. Centrifugal compressors are used to supply ... . Centrifugal compressors cannot be run at high speed because of impeller, diffuser and casing.
Last Answer : ANSWER : B
Description : Is Shell unleaded gas ethanol free?
Last Answer : Probably depends where you are. In Seattle all gas I’ve paid attention to has ethanol. Edit: Time of year might also be a factor. Not sure of that.
Description : Natural gasoline is produced (A) From oil wells (B) In oil refineries (C) By natural gas stripping (D) None of these
Last Answer : (C) By natural gas stripping
Description : Visbreaking (A) Uses natural gas as feed (B) Is carried out at atmospheric pressure (C) Produces fuel oil of lower viscosity (D) Produces gasoline only
Last Answer : (C) Produces fuel oil of lower viscosity
Description : Which of the following is a primary fuel? (A) Blast furnace coke (B) Gasoline (C) Natural gas (D) Wood charcoal
Last Answer : (C) Natural gas
Description : . In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher (A) Densities (B) Melting point (C) Tensile strength (D) Hardness, rigidity & brittleness
Last Answer : (D) Hardness, rigidity & brittleness
Description : A diesel engine is usually more efficient than a spark ignition engine because a. Diesel being a heavier hydrocarbon, release more heat per kg than gasoline b. The air standard efficiency of diesel ... an Spark ignition engine d.Self ignition temperature of diesel is higher than that of gasoline.
Last Answer : ANSWER c. The compression ratio of a diesel engine is higher than that of an S.I engine
Description : Use of gasoline blend like tetraethyl lead in internal combustion engine a. increases the octane rating of the fuel b. allows engine to operate at higher compression ratio c. avoids auto-ignition of fuel d. all of the above
Last Answer : ANSWER d. all of the above
Description : 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
Last Answer : (D) Unleaded motor fuels
Description : What happens in a reversible adiabatic compression? (A) Heating occurs (B) Cooling occurs (C) Pressure is constant (D) Temperature is constant
Last Answer : A) Heating occurs
Description : The yield of straight run LPG from crude oil is about __________ weight percent. (A) 20-25 (B) 1-1.5 (C) 10-15 (D) 0.1-0.2
Last Answer : (B) 1-1.5
Description : A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent. (A) 4 (B) 10 (C) 18 (D) 26
Last Answer : (B) 10
Description : A typical yield of diesel in straight run distillation of crude oil may be about __________ percent. (A) 8 (B) 18 (C) 28 (D) 35
Last Answer : (A) 8
Description : Why has the U.S. never exploited its abundance of natural gas to use as a replacement for gasoline?
Last Answer : It’s easier to take candy from other kids because when no one has any, you still do.
Description : Gasoline is 1. Same as diesel oil 2. Same as petrol 3. Obtained from natural gas 4. Obtained from crude oil The correct answers are: (a) 1 and 3 (b) 2 and 4 (c) 3 and 4 (d) 1 and 4
Last Answer : Ans:(b)
Description : Which one of the following has the highest fuel value? (1) Hydrogen (2) Charcoal (3) Natural gas (4) Gasoline
Last Answer : (1) Hydrogen Explanation: Hydrogen has the highest calorific value of (141,790 KJ/kg ) thus have highest fuel value. Calorific value of charcoal, natural gas and gasoline are (29,600; 43,000; 47,300 kJ/ kg) respectively.
Description : How does the flow of air occur in natural draught cooling towers? a) Natural pressure head density between cold outside air and humid inside air b) Variation in pressure of both cold outside air and ... given air vents and vacuum ports d) Because of difference in the volume of both the of airs
Last Answer : Natural pressure head density between cold outside air and humid inside air
Description : When the temperature and humidity of air is low, we usually use __________ draft cooling tower. (A) Natural (B) Forced (C) Induced (D) None of these
Last Answer : (A) Natural
Description : A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height. (A) 10-15 (B) 30-40 (C) 70-80 (D) 90-100
Last Answer : (A) 10-15
Description : Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method. (A) Diminishing balance (B) Sinking fund (C) Multiple straight line (D) Sum of the years digit
Last Answer : (A) Diminishing balance
Description : Rose oil is extracted from rose leaves using __________ distillation. (A) High pressure (B) Low pressure (C) Extractive (D) Steam
Last Answer : (D) Steam
Description : . Sucrose content in the raw juice extracted from sugar cane is about __________ percent (B) 15 - 20 (A) 1 - 2285 (C) 50 - 60 (D) 80 - 85
Last Answer : (B) 15 - 20
Description : Pick out the correct statement. (A) Human blood is a Newtonian fluid (B) A Newtonian fluid obeys Newton's law of cooling (C) For a non-Newtonian fluid, a straight line passes through the origin in a plot between shear stress and shear gradien
Last Answer : (B) A Newtonian fluid obeys Newton's law of cooling
Description : 'Hinterland' refers to: (a) continental shelf in the sea from which oil can be extracted (b) natural harbour used for international trade (c) land region extending from a sea port (d) abandoned sea port where trade was carried out initially
Last Answer : Ans: (c)
Description : Which of the following terms refers to the absence of the natural lens? a) Aphakia When a cataract is extracted, and an intraocular lens implant is not used, the patient demonstrates aphakia. b) ... deformity of the cornea. d) Hyphema Hyphema refers to blood in the anterior chamber of the eye.
Last Answer : a) Aphakia When a cataract is extracted, and an intraocular lens implant is not used, the patient demonstrates aphakia.