Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

Fuels and Combustion
Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

70

145

85

105

70

145

85

105

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Fuels and Combustion
Bunsen burner is an example of a/an __________ burner.

Rotary cup

Inside mixing/premix type

Submerged combustion

Outside mixing/diffusion flame/nozzle mix type

Rotary cup

Inside mixing/premix type

Submerged combustion

Outside mixing/diffusion flame/nozzle mix type

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Fuels and Combustion
Fuel combustion is never cent per cent efficient due to

Moisture loss

All of these

Dry gas/stack gas loss

Incomplete combustion

Moisture loss

All of these

Dry gas/stack gas loss

Incomplete combustion

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Fuels and Combustion
Cannel coal and boghead coal are the examples of

None of these

Humic coals

Liptobiolites

Sapropelic coals

None of these

Humic coals

Liptobiolites

Sapropelic coals

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Fuels and Combustion
During combustion of coal on grate, clinker formation is increased by the

All of these

Low fusion point of ash (< 1100° C)

Use of preheated primary air

Use of thick fire bed

All of these

Low fusion point of ash (< 1100° C)

Use of preheated primary air

Use of thick fire bed

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Fuels and Combustion
High ash containing coke

Is desirable in producer gas manufacture

Produces more slag when used in the blast furnace

Has poor strength and abrasion resistance

None of these

Is desirable in producer gas manufacture

Produces more slag when used in the blast furnace

Has poor strength and abrasion resistance

None of these

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Fuels and Combustion

Fuels and Combustion Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

Fuels and Combustion Bunsen burner is an example of a/an __________ burner.

Fuels and Combustion Fuel combustion is never cent per cent efficient due to

Fuels and Combustion Cannel coal and boghead coal are the examples of

Fuels and Combustion During combustion of coal on grate, clinker formation is increased by the

Fuels and Combustion High ash containing coke

Fuels and Combustion
Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

Fuels and Combustion
Bunsen burner is an example of a/an __________ burner.

Fuels and Combustion
Fuel combustion is never cent per cent efficient due to

Fuels and Combustion
Cannel coal and boghead coal are the examples of

Fuels and Combustion
During combustion of coal on grate, clinker formation is increased by the

Fuels and Combustion
High ash containing coke