Which of the following is not an important property of fuel oil/furnace oil? (A) Sulphur content (B) Viscosity (C) Aniline point (D) Flash point

Which of the following is not an important property of fuel oil/furnace
oil?
(A) Sulphur content
(B) Viscosity
(C) Aniline point
(D) Flash point
by

1 Answer

Answer :

(C) Aniline point
by

Related questions

LSHS is a type of furnace oil, which (A) Is more viscous than high viscosity furnace oil (HVFO) (B) Stands for low sulphur heavy stock (C) Is an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%(D) All (A), (B) and (C))

Description : LSHS is a type of furnace oil, which (A) Is more viscous than high viscosity furnace oil (HVFO) (B) Stands for low sulphur heavy stock (C) Is an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%) (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

A multigrade lubricating oil means an oil having high (A) Viscosity index (B) Viscosity (C) Aniline point (D) Flash point

Description : A multigrade lubricating oil means an oil having high (A) Viscosity index (B) Viscosity (C) Aniline point (D) Flash point

Last Answer : (A) Viscosity index

Pitch creosote mixture (PCM) as compared to furnace oil is a better fuel, because its (A) Emissivity factor is higher (B) Sulphur content is lower (C) Flue gas has lower dew point thereby facilitating more waste heat recovery (D) All (A), (B) and (C)

Description : Pitch creosote mixture (PCM) as compared to furnace oil is a better fuel, because its (A) Emissivity factor is higher (B) Sulphur content is lower (C) Flue gas has lower dew point thereby facilitating more waste heat recovery (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

The most important property for a jet fuel is its (A) Viscosity (B) Freezing point (C) Calorific value (D) Flash poin

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Tar is a better fuel than furnace oil, because of its (A) Higher calorific value (B) Lower sulphur content (C) Higher emissivity (0.8-0.9) resulting in higher radiation heat transfer rate (D) Both (A) and (B)

Description : Tar is a better fuel than furnace oil, because of its (A) Higher calorific value (B) Lower sulphur content (C) Higher emissivity (0.8-0.9) resulting in higher radiation heat transfer rate (D) Both (A) and (B)

Last Answer : (D) Both (A) and (B)

Aniline point is the (A) Characteristic property of diesel & lubricating oils (B) Measure of aromatic content of oil (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : Aniline point is the (A) Characteristic property of diesel & lubricating oils (B) Measure of aromatic content of oil (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B

Which of the following tests is not done for transformer oil? (A) Flash point and acid value (B) Aniline point (C) Dielectric strength (D) Copper strip corrosion test

Description : Which of the following tests is not done for transformer oil? (A) Flash point and acid value (B) Aniline point (C) Dielectric strength (D) Copper strip corrosion test

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Aniline point test of an oil qualitatively indicates the __________ content of an oil. (A) Paraffin (B) Olefin (C) Aromatic (D) Naphthene

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__________ determination is not a very significant and important test for gasoline. (A) Gum & sulphur content (B) Viscosity (C) Octane number (D) Reid vapor pressure

Description : __________ determination is not a very significant and important test for gasoline. (A) Gum & sulphur content (B) Viscosity (C) Octane number (D) Reid vapor pressure

Last Answer : (B) Viscosity

Viscosity index of a lubricating oil (A) Is the measure of its flash point (B) Is the measure of variation of viscosity with temperature (C) Should be low (D) None of these

Description : Viscosity index of a lubricating oil (A) Is the measure of its flash point (B) Is the measure of variation of viscosity with temperature (C) Should be low (D) None of these

Last Answer : (B) Is the measure of variation of viscosity with temperature

Higher viscosity of lubricating oil usually signifies (A) Lower Reid vapour pressure (B) Higher acid number (C) Higher flash point and fire point (D) Lower flash point and fire point

Description : Higher viscosity of lubricating oil usually signifies (A) Lower Reid vapour pressure (B) Higher acid number (C) Higher flash point and fire point (D) Lower flash point and fire point

Last Answer : (C) Higher flash point and fire point

The advantages of firing pulverised coal in the furnace lies in the fact that, it (A) Permits the use of high ash content coal (B) Permits the use of low fusion point ash coal (C) Accelerates the burning rate and economises on fuel consumption (D) All (A), (B) and (C)

Description : The advantages of firing pulverised coal in the furnace lies in the fact that, it (A) Permits the use of high ash content coal (B) Permits the use of low fusion point ash coal (C) Accelerates the burning rate and economises on fuel consumption (D) All (A), (B) and (C)

Last Answer : (C) Accelerates the burning rate and economises on fuel consumption

Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases. (A) CO content (B) Dew point (C) CO2 content (D) O2 content

Description : Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases. (A) CO content (B) Dew point (C) CO2 content (D) O2 content

Last Answer : (A) CO content

The advantage of firing pulverised coal in the furnace lies in the fact, that it (A) Permits the use of high ash content coal (B) Permits the use of low fusion point ash coal(C) Accelerates the burning rate and economises on fuel combustion(D) All (A), (B) and (C)

Description : The advantage of firing pulverised coal in the furnace lies in the fact, that it (A) Permits the use of high ash content coal (B) Permits the use of low fusion point ash coal (C) Accelerates the burning rate and economises on fuel combustion (D) All (A), (B) and (C)

Last Answer : (C) Accelerates the burning rate and economises on fuel combustion

Which of the following accentuates clinkering troubles on furnace grate burning coal? (A) Low reactivity of carbonised residue containing high proportion of iron & sulphur (B) Low forced draft & fuel bed temperature (C) Thick firebed and preheated primary air (D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C)

Which of the following accentuates clinkering trouble on furnace grate burning coal? (A) Low reactivity of carbonised residue containing high proportions of iron & sulphur (B) Low forced draught and fuel bed temperature (C) Thick fire bed and preheated primary air (D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C)

Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C? (A) Naphtha (B) Petrol (C) Kerosene (D) Heavy fuel oil

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Last Answer : (D) All (A), (B) and (C

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Last Answer : (C) Naphtha

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Description : Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C. (A) 50 (B) 70 (C) 90 (D) 140

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Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners? (A) PCM (B) Tar (C) Light diesel oil (D) Low viscosity furnace oil

Description : Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners? (A) PCM (B) Tar (C) Light diesel oil (D) Low viscosity furnace oil

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Last Answer : (C) 105

he temperature at which solid content of fuel freeze out is called.... (a) Fire point (b) Flash point (c) Pour point (d) Cloud point

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Last Answer : (C) Luminosity number

Aniline point of the diesel is a measure of its __________ content. (A) Aromatic (B) Paraffin (C) Olefin (D) Naphthene

Description : Aniline point of the diesel is a measure of its __________ content. (A) Aromatic (B) Paraffin (C) Olefin (D) Naphthene

Last Answer : (B) Paraffin

Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about (A) 0.1 (B) 1 (C) 2.5 (D) 3.5

Description : Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about (A) 0.1 (B) 1 (C) 2.5 (D) 3.5

Last Answer : (B) 1

Which of the following petroleum products contain minimum sulphur? (A) Naphtha (B) Kerosene (C) LSHS (D) Furnace oil

Description : Which of the following petroleum products contain minimum sulphur? (A) Naphtha (B) Kerosene (C) LSHS (D) Furnace oil

Last Answer : (A) Naphtha

Find false statement about effect of sulphur in fuel? (A) It has heating value (B) It helps in electrostatic precipitation of ash in flue gases (C) It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low (D) It erodes furnace walls

Description : Find false statement about effect of sulphur in fuel? (A) It has heating value (B) It helps in electrostatic precipitation of ash in flue gases (C) It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low (D) It erodes furnace walls

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Last Answer : (C) Same as

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Last Answer : (D) Furnace oil

In case of liquid petrofuels, momentary combustion is observed at its (A) Flash point (B) Preheating temperature corresponding to viscosity of 25 centistokes (C) Flame temperature (D) Fire point

Description : In case of liquid petrofuels, momentary combustion is observed at its (A) Flash point (B) Preheating temperature corresponding to viscosity of 25 centistokes (C) Flame temperature (D) Fire point

Last Answer : (A) Flash point

Fuel used in B.F. stove is (A) Pulverised coal (B) Furnace oil (C) Blast furnace gas/mixed gas (D) Coke oven gas

Description : Fuel used in B.F. stove is (A) Pulverised coal (B) Furnace oil (C) Blast furnace gas/mixed gas (D) Coke oven gas

Last Answer : (C) Blast furnace gas/mixed gas

Which of the following is not a manufactured fuel? (A) Furnace oil (B) Bagasse (C) Semi-coke (D) Kerosene

Description : Which of the following is not a manufactured fuel? (A) Furnace oil (B) Bagasse (C) Semi-coke (D) Kerosene

Last Answer : (B) Bagasse

Out of the following fuels, the difference between the net and gross calorific value is maximum in case of (A) Pitch (B) Fuel oil (C) Blast furnace gas (D) Bituminous coal

Description : Out of the following fuels, the difference between the net and gross calorific value is maximum in case of (A) Pitch (B) Fuel oil (C) Blast furnace gas (D) Bituminous coal

Last Answer : (B) Fuel oil

Performance number of a liquid fuel is related to its (A) Wax content (B) Spontaneous ignition temperature (C) Knocking tendency (D) Sulphur content

Description : Performance number of a liquid fuel is related to its (A) Wax content (B) Spontaneous ignition temperature (C) Knocking tendency (D) Sulphur content

Last Answer : (B) Spontaneous ignition temperature

A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the (A) Presence of large quantity of hydrogen in the fuel (B) Low calorific value of the fuel (C) High sulphur content in the fuel (D) Lack of thorough mixing of fuel with air

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Last Answer : (D) Lack of thorough mixing of fuel with air

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Description : Higher fuel combustion efficiency cannot be achieved by (A) Preheating of fuel gases & combustion air (B) Reducing sulphur content in the fuel (C) Adopting proper fuel firing technique & fuel preparation (D) Supplying correct amount of combustion air

Last Answer : (B) Reducing sulphur content in the fuel

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Last Answer : (B) Higher C/H ratio

The optimum percentage of excess air for combustion depends upon the__________ of the fuel.(A) Type (solid, liquid or gaseous)(B) Calorific value(C) Sulphur content(D) Ignition temperature

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Last Answer : (A) Type (solid, liquid or gaseous)

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Description : Which of the following has the highest viscosity of all (at a given temperature)? (A) Naphtha (B) Fuel oil (C) Light diesel oil (D) Petrol

Last Answer : (B) Fuel oil

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Description : Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds). (A) 5 (B) 25 (C) 50 (D) 100

Last Answer : (B) 25

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

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

Pick out the additive property of lube oil out of following. (A) °API gravity (B) Specific gravity (C) Viscosity (D) Flashpoint

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