Fuels and Combustion Carbon Content by weight in air dried wood may be about __________ percent. 80 10 50 25 80 10 50 25 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Does not vary with increase in surface area Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Is accelerated by storage in large heaps with small surface to volume ratio Does not vary with increase in surface area Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Is accelerated by storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of __________ the flame temperature. Combustion air decreases Either the fuel or the air or both, increases The gaseous fuel before combustion decreases Either the fuel or the air does not affect Combustion air decreases Either the fuel or the air or both, increases The gaseous fuel before combustion decreases Either the fuel or the air does not affect ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Turndown ratio of a gas burner is equal to the Maximum to minimum permissible gas flow rate Maximum to minimum heat input ratio Minimum to maximum heat input ratio Both A & B Maximum to minimum permissible gas flow rate Maximum to minimum heat input ratio Minimum to maximum heat input ratio Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called Kindling temperature Smoke point Fire point Burning temperature Kindling temperature Smoke point Fire point Burning temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called Under pressurising None of these Banking Back draughting Under pressurising None of these Banking Back draughting ANSWER DOWNLOAD EXAMIANS APP
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