Related Questions

Higher fuel combustion efficiency can not 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
Deficiency of combustion air during combustion of a gaseous fuel
A Lengthens the flame
B Causes heat loss of fuel by its partial combustion
C Both A & B
D Shortens the flame
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of
A 75%
B 85%
C 90%
D 99%
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
For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will
A Increase
B Decrease
C Increase or decrease depending on the fuel type
D Not change
The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called
A Fire point
B Smoke point
C Burning temperature
D Kindling temperature
Combustion of fuel in a furnace with oxygen enriched air results in higher
A Flue gas volume
B Flame temperature
C Fuel consumption
D Stack loss
The pilot of a small aircraft with a 40 gallon fuel tank wants to fly to Cleveland , which is 480 miles engine , which can fly only 8 miles per gallon, will not get him there , By how many miles per gallon must the aircraft's fuel efficiency be improved to make the fight to Cleveland possible?
A 160
B 12
C 40
D 4
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
A certain truck uses 18 gallons of diesel fuel in traveling 270 miles. In order for the truck to travel the same distance using 10 gallons of diesel fuel, by how many miles per gallon must the truck's fuel mileage be increased.
A 12
B 15
C 27
D 9

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