Related Questions

Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value
A (1- moisture content)
B (1 + moisture content)
C 1 + moisture content
D 1 – moisture content
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
A 0.1
B 1
C 2.5
D 3.5
Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by
A Preheating the combustion air
B Oxygen enrichment of combustion air
C Preheating the fuel gas
D All of the above
Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent.
A [

A.

B.

An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace.
A Walking beam
B Shaft
C Tunnel
D Rotary hearth
Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by
A Increasing the draft in the furnace
B Preheating the fuel gas
C Oxygen enrichment of combustion air
D Preheating the combustion air
Pulverised fuel fired furnaces employ __________ fuel firing.
A Horizontal
B Vertical
C Tangential
D All of the above
Which of the following is not a directly fired furnace?
A By-product coke oven
B Calcination kiln
C Sintering furnace
D Open hearth furnace
Which of the following contributes maximum as main source of sulphur in the blast furnace charge ?
A Sinter
B Coke
C Iron ore
D Limestone
Travelling at a constant speed of 32 miles per hours, a certain motorboat consumers 24gallons of fuel per hour. What is the fuel consumption of his boat this speed measured in miles per gallons of fuel?
A 2/3
B 3/4
C 4/5
D 4/3

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